CVE-2025-5702 (GCVE-0-2025-5702)

Vulnerability from cvelistv5 – Published: 2025-06-05 18:23 – Updated: 2025-06-05 20:21
VLAI
Summary
The strcmp implementation optimized for the Power10 processor in the GNU C Library version 2.39 and later writes to vector registers v20 to v31 without saving contents from the caller (those registers are defined as non-volatile registers by the powerpc64le ABI), resulting in overwriting of its contents and potentially altering control flow of the caller, or leaking the input strings to the function to other parts of the program.
Severity
5.6 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-06-05 20:17 UTC
CWE
  • CWE-665 - Improper Initialization
Assigner
glibc CNA under the redhat root
CNA scorecard B 80/100 over 13 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
The GNU C Library glibc Affected: 2.39 (custom)
guessed Create a notification for this product.
Date Public
2025-06-05 02:03
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "NETWORK",
              "availabilityImpact": "LOW",
              "baseScore": 5.6,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2025-5702",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-06-05T20:17:18.849567Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-665",
                "description": "CWE-665 Improper Initialization",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-06-05T20:21:44.764Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Power10"
          ],
          "product": "glibc",
          "vendor": "The GNU C Library",
          "versions": [
            {
              "status": "affected",
              "version": "2.39",
              "versionType": "custom"
            }
          ]
        }
      ],
      "datePublic": "2025-06-05T02:03:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "The strcmp implementation optimized for the Power10 processor in the GNU C Library version 2.39 and later writes to vector registers v20 to v31 without saving contents from the caller (those registers are defined as non-volatile registers by the powerpc64le ABI), resulting in overwriting of its contents and potentially altering control flow of the caller, or leaking the input strings to the function to other parts of the program."
            }
          ],
          "value": "The strcmp implementation optimized for the Power10 processor in the GNU C Library version 2.39 and later writes to vector registers v20 to v31 without saving contents from the caller (those registers are defined as non-volatile registers by the powerpc64le ABI), resulting in overwriting of its contents and potentially altering control flow of the caller, or leaking the input strings to the function to other parts of the program."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-06-05T18:23:57.872Z",
        "orgId": "3ff69d7a-14f2-4f67-a097-88dee7810d18",
        "shortName": "glibc"
      },
      "references": [
        {
          "url": "https://sourceware.org/bugzilla/show_bug.cgi?id=33056"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "workarounds": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "One may disable the Power10 optimized string routines in glibc to work around this issue, by setting the \u003ccode\u003eglibc.cpu.hwcaps\u003c/code\u003e tunable. This can be done by exporting the \u003ccode\u003eGLIBC_TUNABLES\u003c/code\u003e environment variable like so:\u003cbr\u003e\u003cbr\u003e\n\n\u003ccode\u003e\nexport GLIBC_TUNABLES=glibc.cpu.hwcaps=-arch_3_1\u003c/code\u003e"
            }
          ],
          "value": "One may disable the Power10 optimized string routines in glibc to work around this issue, by setting the glibc.cpu.hwcaps tunable. This can be done by exporting the GLIBC_TUNABLES environment variable like so:\n\n\n\n\nexport GLIBC_TUNABLES=glibc.cpu.hwcaps=-arch_3_1"
        }
      ],
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "3ff69d7a-14f2-4f67-a097-88dee7810d18",
    "assignerShortName": "glibc",
    "cveId": "CVE-2025-5702",
    "datePublished": "2025-06-05T18:23:57.872Z",
    "dateReserved": "2025-06-04T21:57:13.818Z",
    "dateUpdated": "2025-06-05T20:21:44.764Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-5702",
      "date": "2026-11-01",
      "epss": "0.00319",
      "percentile": "0.24904"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "platforms": [
                  "Power10"
                ],
                "product": "glibc",
                "vendor": "The GNU C Library",
                "versions": [
                  {
                    "status": "affected",
                    "version": "2.39",
                    "versionType": "custom"
                  }
                ]
              }
            ],
            "source": "3ff69d7a-14f2-4f67-a097-88dee7810d18"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "11DB6645-FBFE-4D4F-A4B5-800A1E5121EC",
                    "versionEndExcluding": "2.39-209",
                    "versionStartIncluding": "2.39",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "C1D163B8-3B41-4E62-A663-754619807309",
                    "versionEndExcluding": "2.40-139",
                    "versionStartIncluding": "2.40",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "0DFAD8AF-BE93-4289-B4C4-7834FFFAEBD0",
                    "versionEndExcluding": "2.41-60",
                    "versionStartIncluding": "2.41",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "The strcmp implementation optimized for the Power10 processor in the GNU C Library version 2.39 and later writes to vector registers v20 to v31 without saving contents from the caller (those registers are defined as non-volatile registers by the powerpc64le ABI), resulting in overwriting of its contents and potentially altering control flow of the caller, or leaking the input strings to the function to other parts of the program."
          },
          {
            "lang": "es",
            "value": "La implementaci\u00f3n de strcmp optimizada para el procesador Power10 en GNU C Library versi\u00f3n 2.39 y posteriores escribe en los registros vectoriales v20 a v31 sin guardar el contenido del llamador (esos registros est\u00e1n definidos como registros no vol\u00e1tiles por la ABI powerpc64le), lo que da como resultado la sobrescritura de su contenido y la posible alteraci\u00f3n del flujo de control del llamador o la filtraci\u00f3n de las cadenas de entrada a la funci\u00f3n a otras partes del programa."
          }
        ],
        "id": "CVE-2025-5702",
        "lastModified": "2026-06-17T09:48:35.060",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "HIGH",
                "attackVector": "NETWORK",
                "availabilityImpact": "LOW",
                "baseScore": 5.6,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "LOW",
                "integrityImpact": "LOW",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L",
                "version": "3.1"
              },
              "exploitabilityScore": 2.2,
              "impactScore": 3.4,
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2025-5702",
                "options": [
                  {
                    "exploitation": "poc"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-06-05T20:17:18.849567Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2025-06-05T19:15:31.073",
        "references": [
          {
            "source": "3ff69d7a-14f2-4f67-a097-88dee7810d18",
            "tags": [
              "Issue Tracking"
            ],
            "url": "https://sourceware.org/bugzilla/show_bug.cgi?id=33056"
          }
        ],
        "sourceIdentifier": "3ff69d7a-14f2-4f67-a097-88dee7810d18",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-665"
              }
            ],
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-30T10:36:39+00:00",
      "cve": "CVE-2025-5702",
      "id": "CVE-2025-5702",
      "initial_release_date": "2025-06-05T18:23:57.872000+00:00",
      "product_status:fixed": "2009",
      "product_status:known_not_affected": "237",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "glibc: Vector register overwrite bug in glibc",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-5702.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-10-18T00:10:01Z",
      "cve": "CVE-2025-5702",
      "id": "CVE-2025-5702",
      "initial_release_date": "2025-06-07T01:59:28Z",
      "product_status:known_affected": "0",
      "product_status:known_not_affected": "696",
      "product_status:recommended": "486",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-5702",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/2025/cve-2025-5702.json",
      "version": "17"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "cvssV3_1": {
                  "attackComplexity": "HIGH",
                  "attackVector": "NETWORK",
                  "availabilityImpact": "LOW",
                  "baseScore": 5.6,
                  "baseSeverity": "MEDIUM",
                  "confidentialityImpact": "LOW",
                  "integrityImpact": "LOW",
                  "privilegesRequired": "NONE",
                  "scope": "UNCHANGED",
                  "userInteraction": "NONE",
                  "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L",
                  "version": "3.1"
                }
              },
              {
                "other": {
                  "content": {
                    "id": "CVE-2025-5702",
                    "options": [
                      {
                        "Exploitation": "poc"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2025-06-05T20:17:18.849567Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "cweId": "CWE-665",
                    "description": "CWE-665 Improper Initialization",
                    "lang": "en",
                    "type": "CWE"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2025-06-05T20:17:56.516Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "platforms": [
                "Power10"
              ],
              "product": "glibc",
              "vendor": "The GNU C Library",
              "versions": [
                {
                  "status": "affected",
                  "version": "2.39",
                  "versionType": "custom"
                }
              ]
            }
          ],
          "datePublic": "2025-06-05T02:03:00.000Z",
          "descriptions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "The strcmp implementation optimized for the Power10 processor in the GNU C Library version 2.39 and later writes to vector registers v20 to v31 without saving contents from the caller (those registers are defined as non-volatile registers by the powerpc64le ABI), resulting in overwriting of its contents and potentially altering control flow of the caller, or leaking the input strings to the function to other parts of the program."
                }
              ],
              "value": "The strcmp implementation optimized for the Power10 processor in the GNU C Library version 2.39 and later writes to vector registers v20 to v31 without saving contents from the caller (those registers are defined as non-volatile registers by the powerpc64le ABI), resulting in overwriting of its contents and potentially altering control flow of the caller, or leaking the input strings to the function to other parts of the program."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2025-06-05T18:23:57.872Z",
            "orgId": "3ff69d7a-14f2-4f67-a097-88dee7810d18",
            "shortName": "glibc"
          },
          "references": [
            {
              "url": "https://sourceware.org/bugzilla/show_bug.cgi?id=33056"
            }
          ],
          "source": {
            "discovery": "UNKNOWN"
          },
          "workarounds": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "One may disable the Power10 optimized string routines in glibc to work around this issue, by setting the \u003ccode\u003eglibc.cpu.hwcaps\u003c/code\u003e tunable. This can be done by exporting the \u003ccode\u003eGLIBC_TUNABLES\u003c/code\u003e environment variable like so:\u003cbr\u003e\u003cbr\u003e\n\n\u003ccode\u003e\nexport GLIBC_TUNABLES=glibc.cpu.hwcaps=-arch_3_1\u003c/code\u003e"
                }
              ],
              "value": "One may disable the Power10 optimized string routines in glibc to work around this issue, by setting the glibc.cpu.hwcaps tunable. This can be done by exporting the GLIBC_TUNABLES environment variable like so:\n\n\n\n\nexport GLIBC_TUNABLES=glibc.cpu.hwcaps=-arch_3_1"
            }
          ],
          "x_generator": {
            "engine": "Vulnogram 0.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "3ff69d7a-14f2-4f67-a097-88dee7810d18",
        "assignerShortName": "glibc",
        "cveId": "CVE-2025-5702",
        "datePublished": "2025-06-05T18:23:57.872Z",
        "dateReserved": "2025-06-04T21:57:13.818Z",
        "dateUpdated": "2025-06-05T20:21:44.764Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Loading timeline…




    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.