Vulnerability-Lookup

UBUNTU-CVE-2026-40339 (CVE-2026-40339)

Vulnerability from osv_ubuntu – Published: 2026-04-18 00:16 – Updated: 2026-07-22 18:37 – Source website

Details

libgphoto2 is a camera access and control library. Versions up to and including 2.5.33 have an out-of-bounds read in ptp_unpack_Sony_DPD() in camlibs/ptp2/ptp-pack.c (line 842). The function reads the FormFlag byte via dtoh8o(data, *poffset) without a prior bounds check. The standard ptp_unpack_DPD() at lines 686–687 correctly validates *offset + sizeof(uint8_t) > dpdlen before this same read, but the Sony variant omits this check entirely. Commit 09f8a940b1e418b5693f5c11e3016a1ad2cea62d fixes the issue.

Severity

5.2 (Medium)


                    
                      CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-40339	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-40339	REPORT
	https://github.com/gphoto/libgphoto2/security/adv…	REPORT
	https://ubuntu.com/security/notices/USN-8586-1	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libgphoto2-6",
            "binary_version": "2.5.3.1-1ubuntu2.2"
          },
          {
            "binary_name": "libgphoto2-l10n",
            "binary_version": "2.5.3.1-1ubuntu2.2"
          },
          {
            "binary_name": "libgphoto2-port10",
            "binary_version": "2.5.3.1-1ubuntu2.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "libgphoto2",
        "purl": "pkg:deb/ubuntu/libgphoto2@2.5.3.1-1ubuntu2.2?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.5.2-0ubuntu5",
        "2.5.2-0ubuntu6",
        "2.5.3.1-0ubuntu1",
        "2.5.3.1-1ubuntu2",
        "2.5.3.1-1ubuntu2.2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libgphoto2-6",
            "binary_version": "2.5.9-3"
          },
          {
            "binary_name": "libgphoto2-l10n",
            "binary_version": "2.5.9-3"
          },
          {
            "binary_name": "libgphoto2-port12",
            "binary_version": "2.5.9-3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "libgphoto2",
        "purl": "pkg:deb/ubuntu/libgphoto2@2.5.9-3?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.5.8-1",
        "2.5.8-2",
        "2.5.8-3",
        "2.5.9-2",
        "2.5.9-3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libgphoto2-6",
            "binary_version": "2.5.16-2"
          },
          {
            "binary_name": "libgphoto2-l10n",
            "binary_version": "2.5.16-2"
          },
          {
            "binary_name": "libgphoto2-port12",
            "binary_version": "2.5.16-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "libgphoto2",
        "purl": "pkg:deb/ubuntu/libgphoto2@2.5.16-2?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.5.14-1",
        "2.5.16-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libgphoto2-6",
            "binary_version": "2.5.25-0ubuntu0.1"
          },
          {
            "binary_name": "libgphoto2-l10n",
            "binary_version": "2.5.25-0ubuntu0.1"
          },
          {
            "binary_name": "libgphoto2-port12",
            "binary_version": "2.5.25-0ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "libgphoto2",
        "purl": "pkg:deb/ubuntu/libgphoto2@2.5.25-0ubuntu0.1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.5.23-2",
        "2.5.24-1",
        "2.5.25-0ubuntu0.1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libgphoto2-6",
            "binary_version": "2.5.27-1ubuntu0.1"
          },
          {
            "binary_name": "libgphoto2-l10n",
            "binary_version": "2.5.27-1ubuntu0.1"
          },
          {
            "binary_name": "libgphoto2-port12",
            "binary_version": "2.5.27-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "libgphoto2",
        "purl": "pkg:deb/ubuntu/libgphoto2@2.5.27-1ubuntu0.1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.5.27-1ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.5.27-1",
        "2.5.27-1build1",
        "2.5.27-1build2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libgphoto2-6t64",
            "binary_version": "2.5.31-2.1ubuntu1.1"
          },
          {
            "binary_name": "libgphoto2-l10n",
            "binary_version": "2.5.31-2.1ubuntu1.1"
          },
          {
            "binary_name": "libgphoto2-port12t64",
            "binary_version": "2.5.31-2.1ubuntu1.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "libgphoto2",
        "purl": "pkg:deb/ubuntu/libgphoto2@2.5.31-2.1ubuntu1.1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.5.31-2.1ubuntu1.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.5.30-1",
        "2.5.31-1",
        "2.5.31-2",
        "2.5.31-2.1build1",
        "2.5.31-2.1build2",
        "2.5.31-2.1ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libgphoto2-6t64",
            "binary_version": "2.5.31-4ubuntu1"
          },
          {
            "binary_name": "libgphoto2-l10n",
            "binary_version": "2.5.31-4ubuntu1"
          },
          {
            "binary_name": "libgphoto2-port12t64",
            "binary_version": "2.5.31-4ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "libgphoto2",
        "purl": "pkg:deb/ubuntu/libgphoto2@2.5.31-4ubuntu1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.5.31-4",
        "2.5.31-4build1",
        "2.5.31-4ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libgphoto2-6t64",
            "binary_version": "2.5.33-1ubuntu1.1"
          },
          {
            "binary_name": "libgphoto2-l10n",
            "binary_version": "2.5.33-1ubuntu1.1"
          },
          {
            "binary_name": "libgphoto2-port12t64",
            "binary_version": "2.5.33-1ubuntu1.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "libgphoto2",
        "purl": "pkg:deb/ubuntu/libgphoto2@2.5.33-1ubuntu1.1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.5.33-1ubuntu1.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.5.31-4build1",
        "2.5.32-1",
        "2.5.33-1",
        "2.5.33-1ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "libgphoto2 is a camera access and control library. Versions up to and including 2.5.33 have an out-of-bounds read in `ptp_unpack_Sony_DPD()` in `camlibs/ptp2/ptp-pack.c` (line 842). The function reads the FormFlag byte via `dtoh8o(data, *poffset)` without a prior bounds check. The standard `ptp_unpack_DPD()` at lines 686\u2013687 correctly validates `*offset + sizeof(uint8_t) \u003e dpdlen` before this same read, but the Sony variant omits this check entirely. Commit 09f8a940b1e418b5693f5c11e3016a1ad2cea62d fixes the issue.",
  "id": "UBUNTU-CVE-2026-40339",
  "modified": "2026-07-22T18:37:17Z",
  "published": "2026-04-18T00:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-40339"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-40339"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/gphoto/libgphoto2/security/advisories/GHSA-42cm-m9hc-r7q8"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8586-1"
    }
  ],
  "related": [
    "USN-8586-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-40339"
  ]
}

CVE-2026-40339 (GCVE-0-2026-40339)

Vulnerability from cvelistv5 – Published: 2026-04-17 23:42 – Updated: 2026-04-20 14:56

Title

libgphoto2 has OOB read in ptp_unpack_Sony_DPD() FormFlag parsing in ptp-pack.c

Summary

libgphoto2 is a camera access and control library. Versions up to and including 2.5.33 have an out-of-bounds read in `ptp_unpack_Sony_DPD()` in `camlibs/ptp2/ptp-pack.c` (line 842). The function reads the FormFlag byte via `dtoh8o(data, *poffset)` without a prior bounds check. The standard `ptp_unpack_DPD()` at lines 686–687 correctly validates `*offset + sizeof(uint8_t) > dpdlen` before this same read, but the Sony variant omits this check entirely. Commit 09f8a940b1e418b5693f5c11e3016a1ad2cea62d fixes the issue.

Severity

5.2 (Medium)


                        
                          CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-20 14:51 UTC

CWE

CWE-125 - Out-of-bounds Read

Assigner

GitHub_M mitre root Scorecard

References

2 references

URL	Tags
https://github.com/gphoto/libgphoto2/security/adv…	x_refsource_CONFIRM
https://github.com/gphoto/libgphoto2/commit/09f8a…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
gphoto	libgphoto2	Affected: <= 2.5.33

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-40339",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-20T14:51:42.764789Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-20T14:56:21.979Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "libgphoto2",
          "vendor": "gphoto",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c= 2.5.33"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "libgphoto2 is a camera access and control library. Versions up to and including 2.5.33 have an out-of-bounds read in `ptp_unpack_Sony_DPD()` in `camlibs/ptp2/ptp-pack.c` (line 842). The function reads the FormFlag byte via `dtoh8o(data, *poffset)` without a prior bounds check. The standard `ptp_unpack_DPD()` at lines 686\u2013687 correctly validates `*offset + sizeof(uint8_t) \u003e dpdlen` before this same read, but the Sony variant omits this check entirely. Commit 09f8a940b1e418b5693f5c11e3016a1ad2cea62d fixes the issue."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "PHYSICAL",
            "availabilityImpact": "LOW",
            "baseScore": 5.2,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-125",
              "description": "CWE-125: Out-of-bounds Read",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-17T23:42:32.586Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/gphoto/libgphoto2/security/advisories/GHSA-42cm-m9hc-r7q8",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/gphoto/libgphoto2/security/advisories/GHSA-42cm-m9hc-r7q8"
        },
        {
          "name": "https://github.com/gphoto/libgphoto2/commit/09f8a940b1e418b5693f5c11e3016a1ad2cea62d",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/gphoto/libgphoto2/commit/09f8a940b1e418b5693f5c11e3016a1ad2cea62d"
        }
      ],
      "source": {
        "advisory": "GHSA-42cm-m9hc-r7q8",
        "discovery": "UNKNOWN"
      },
      "title": "libgphoto2 has OOB read in ptp_unpack_Sony_DPD() FormFlag parsing in ptp-pack.c"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-40339",
    "datePublished": "2026-04-17T23:42:32.586Z",
    "dateReserved": "2026-04-10T22:50:01.358Z",
    "dateUpdated": "2026-04-20T14:56:21.979Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

USN-8586-1 (UBUNTU-CVE-2026-40333)

Vulnerability from osv_ubuntu – Published: 2026-07-22 13:11 – Updated: 2026-07-22 13:11 – Source website

Summary

libgphoto2 vulnerabilities

Details

It was discovered that libgphoto2 did not properly validate buffer boundaries when parsing EOS image format data. An attacker with physical access could possibly use this issue to obtain sensitive information. (CVE-2026-40333)

It was discovered that libgphoto2 did not properly null-terminate buffers when parsing Canon folder entries. An attacker with physical access could possibly use this issue to obtain sensitive information. (CVE-2026-40334)

It was discovered that libgphoto2 did not properly validate buffer boundaries when parsing device property values. An attacker with physical access could possibly use this issue to obtain sensitive information. (CVE-2026-40335)

It was discovered that libgphoto2 had a memory leak when parsing Sony device property descriptors. An attacker with physical access could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-40336)

It was discovered that libgphoto2 did not properly validate buffer boundaries when parsing Sony device property enumeration data. An attacker with physical access could possibly use this issue to obtain sensitive information. (CVE-2026-40338)

It was discovered that libgphoto2 did not properly validate buffer boundaries when parsing Sony device property form flags. An attacker with physical access could possibly use this issue to obtain sensitive information. (CVE-2026-40339)

It was discovered that libgphoto2 did not properly validate buffer boundaries when parsing object information. An attacker with physical access could possibly use this issue to obtain sensitive information. (CVE-2026-40340)

It was discovered that libgphoto2 did not properly validate buffer boundaries when parsing EOS focus information. An attacker with physical access could possibly use this issue to cause libgphoto2 to crash, resulting in a denial of service. (CVE-2026-40341)

References

URL

Type

	https://ubuntu.com/security/notices/USN-8586-1	ADVISORY
	https://ubuntu.com/security/CVE-2026-40333	REPORT
	https://ubuntu.com/security/CVE-2026-40334	REPORT
	https://ubuntu.com/security/CVE-2026-40335	REPORT
	https://ubuntu.com/security/CVE-2026-40336	REPORT
	https://ubuntu.com/security/CVE-2026-40338	REPORT
	https://ubuntu.com/security/CVE-2026-40339	REPORT
	https://ubuntu.com/security/CVE-2026-40340	REPORT
	https://ubuntu.com/security/CVE-2026-40341	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-40333",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-40334",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-40335",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-40338",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-40339",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-40340",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-40341",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:22.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libgphoto2-6",
            "binary_version": "2.5.27-1ubuntu0.1"
          },
          {
            "binary_name": "libgphoto2-l10n",
            "binary_version": "2.5.27-1ubuntu0.1"
          },
          {
            "binary_name": "libgphoto2-port12",
            "binary_version": "2.5.27-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "libgphoto2",
        "purl": "pkg:deb/ubuntu/libgphoto2@2.5.27-1ubuntu0.1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.5.27-1ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.5.27-1",
        "2.5.27-1build1",
        "2.5.27-1build2"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-40333",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-40334",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-40335",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-40338",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-40339",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-40340",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-40341",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:24.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libgphoto2-6t64",
            "binary_version": "2.5.31-2.1ubuntu1.1"
          },
          {
            "binary_name": "libgphoto2-l10n",
            "binary_version": "2.5.31-2.1ubuntu1.1"
          },
          {
            "binary_name": "libgphoto2-port12t64",
            "binary_version": "2.5.31-2.1ubuntu1.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "libgphoto2",
        "purl": "pkg:deb/ubuntu/libgphoto2@2.5.31-2.1ubuntu1.1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.5.31-2.1ubuntu1.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.5.30-1",
        "2.5.31-1",
        "2.5.31-2",
        "2.5.31-2.1build1",
        "2.5.31-2.1build2",
        "2.5.31-2.1ubuntu1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-40333",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-40334",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-40335",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-40336",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-40338",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-40339",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-40340",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-40341",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:26.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libgphoto2-6t64",
            "binary_version": "2.5.33-1ubuntu1.1"
          },
          {
            "binary_name": "libgphoto2-l10n",
            "binary_version": "2.5.33-1ubuntu1.1"
          },
          {
            "binary_name": "libgphoto2-port12t64",
            "binary_version": "2.5.33-1ubuntu1.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "libgphoto2",
        "purl": "pkg:deb/ubuntu/libgphoto2@2.5.33-1ubuntu1.1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.5.33-1ubuntu1.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.5.31-4build1",
        "2.5.32-1",
        "2.5.33-1",
        "2.5.33-1ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that libgphoto2 did not properly validate buffer\nboundaries when parsing EOS image format data. An attacker with physical\naccess could possibly use this issue to obtain sensitive information.\n(CVE-2026-40333)\n\nIt was discovered that libgphoto2 did not properly null-terminate buffers\nwhen parsing Canon folder entries. An attacker with physical access could\npossibly use this issue to obtain sensitive information. (CVE-2026-40334)\n\nIt was discovered that libgphoto2 did not properly validate buffer\nboundaries when parsing device property values. An attacker with physical\naccess could possibly use this issue to obtain sensitive information.\n(CVE-2026-40335)\n\nIt was discovered that libgphoto2 had a memory leak when parsing Sony\ndevice property descriptors. An attacker with physical access could\npossibly use this issue to cause a denial of service. This issue only\naffected Ubuntu 26.04 LTS. (CVE-2026-40336)\n\nIt was discovered that libgphoto2 did not properly validate buffer\nboundaries when parsing Sony device property enumeration data. An attacker\nwith physical access could possibly use this issue to obtain sensitive\ninformation. (CVE-2026-40338)\n\nIt was discovered that libgphoto2 did not properly validate buffer\nboundaries when parsing Sony device property form flags. An attacker with\nphysical access could possibly use this issue to obtain sensitive\ninformation. (CVE-2026-40339)\n\nIt was discovered that libgphoto2 did not properly validate buffer\nboundaries when parsing object information. An attacker with physical\naccess could possibly use this issue to obtain sensitive information.\n(CVE-2026-40340)\n\nIt was discovered that libgphoto2 did not properly validate buffer\nboundaries when parsing EOS focus information. An attacker with physical\naccess could possibly use this issue to cause libgphoto2 to crash,\nresulting in a denial of service. (CVE-2026-40341)",
  "id": "USN-8586-1",
  "modified": "2026-07-22T13:11:45Z",
  "published": "2026-07-22T13:11:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8586-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-40333"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-40334"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-40335"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-40336"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-40338"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-40339"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-40340"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-40341"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "libgphoto2 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2026-40333",
    "UBUNTU-CVE-2026-40334",
    "UBUNTU-CVE-2026-40335",
    "UBUNTU-CVE-2026-40336",
    "UBUNTU-CVE-2026-40338",
    "UBUNTU-CVE-2026-40339",
    "UBUNTU-CVE-2026-40340",
    "UBUNTU-CVE-2026-40341"
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

UBUNTU-CVE-2026-40339 (CVE-2026-40339)

CVE-2026-40339 (GCVE-0-2026-40339)

USN-8586-1 (UBUNTU-CVE-2026-40333)

Tags

Sightings

Nomenclature

Related by attack behaviour