Vulnerability-Lookup

CVE-2026-90622 (GCVE-0-2026-90622)

Vulnerability from cvelistv5 – Published: 2026-09-14 03:30 – Updated: 2026-09-15 17:28 X_Open Source

Title

GNU libredwg Layer Encoding dwg.spec DWG_TABLE null pointer dereference

Summary

A security flaw has been discovered in GNU libredwg 0.13.4. This impacts the function DWG_TABLE of the file src/dwg.spec of the component Layer Encoding. Performing a manipulation results in null pointer dereference. The attack needs to be approached locally. The exploit has been released to the public and may be used for attacks. Upgrading to version 0.14 will fix this issue. The patch is named f5b548c4c1697d66c3dabd0f6a49280a14365a3a. The affected component should be upgraded. The FIELD_HANDLE macro itself is NULL-safe (emits null_handle) - only the two raw zeroing assignments added by 27118c40 ("encode: also disable LAYER.material") dereferenced a NULL material handle; the fix restores the file's existing if (_obj->style) guard convention for material.

Severity

4.8 (Medium)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

3.3 (Low)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C

3.3 (Low)


                        
                          CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-15 17:28 UTC

CWE

CWE-476 - NULL Pointer Dereference
CWE-404 - Denial of Service

Assigner

VulDB CNA under the mitre root

CNA scorecard B 83/100 over 3793 records in the last 180 days details

References

9 references

URL	Tags
https://vuldb.com/vuln/403204	vdb-entrytechnical-description
https://vuldb.com/vuln/403204/cti	signaturepermissions-required
https://vuldb.com/cve/CVE-2026-90622	third-party-advisory
https://vuldb.com/submit/914770	third-party-advisory
https://github.com/LibreDWG/libredwg/issues/1269	issue-tracking
https://github.com/user-attachments/files/2854935…	exploit
https://github.com/LibreDWG/libredwg/commit/f5b54…	patch
https://github.com/LibreDWG/libredwg/releases/tag/0.14	patch
https://www.gnu.org/	broken-linkproduct

Impacted products

1 product

Vendor	Product	Version	CPE status
GNU	libredwg	Affected: 0.13.4 Unaffected: 0.14 cpe:2.3:a:gnu:libredwg::::::::

Credits

lcyf-fizz (VulDB User)

Show details on NVD website

JSON

To clipboard

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              "tags": [
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                "technical-description"
              ],
              "url": "https://vuldb.com/vuln/403204"
            },
            {
              "name": "VDB-403204 | CTI Indicators (IOB, IOC, IOA)",
              "tags": [
                "signature",
                "permissions-required"
              ],
              "url": "https://vuldb.com/vuln/403204/cti"
            },
            {
              "name": "CVE-2026-90622 | CVE Analysis and Report",
              "tags": [
                "third-party-advisory"
              ],
              "url": "https://vuldb.com/cve/CVE-2026-90622"
            },
            {
              "name": "Submit #914770 | GNU libredwg 0.13.4.8229 (git 9b4adcbf, 2026-06-01) NULL Pointer Dereference",
              "tags": [
                "third-party-advisory"
              ],
              "url": "https://vuldb.com/submit/914770"
            },
            {
              "tags": [
                "issue-tracking"
              ],
              "url": "https://github.com/LibreDWG/libredwg/issues/1269"
            },
            {
              "tags": [
                "exploit"
              ],
              "url": "https://github.com/user-attachments/files/28549357/repro.zip"
            },
            {
              "tags": [
                "patch"
              ],
              "url": "https://github.com/LibreDWG/libredwg/commit/f5b548c4c1697d66c3dabd0f6a49280a14365a3a"
            },
            {
              "tags": [
                "patch"
              ],
              "url": "https://github.com/LibreDWG/libredwg/releases/tag/0.14"
            },
            {
              "tags": [
                "broken-link",
                "product"
              ],
              "url": "https://www.gnu.org/"
            }
          ],
          "tags": [
            "x_open-source"
          ],
          "timeline": [
            {
              "lang": "en",
              "time": "2026-09-12T00:00:00.000Z",
              "value": "Advisory disclosed"
            },
            {
              "lang": "en",
              "time": "2026-09-12T02:00:00.000Z",
              "value": "VulDB entry created"
            },
            {
              "lang": "en",
              "time": "2026-09-12T22:32:06.000Z",
              "value": "VulDB entry last update"
            }
          ],
          "title": "GNU libredwg Layer Encoding dwg.spec DWG_TABLE null pointer dereference",
          "x_generator": [
            "VulDB PVTS v202609"
          ]
        }
      },
      "cveMetadata": {
        "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "assignerShortName": "VulDB",
        "cveId": "CVE-2026-90622",
        "datePublished": "2026-09-14T03:30:13.806Z",
        "dateReserved": "2026-09-12T20:27:01.101Z",
        "dateUpdated": "2026-09-15T17:28:33.472Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

FKIE_CVE-2026-90622

Vulnerability from fkie_nvd - Published: 2026-09-14 04:16 - Updated: 2026-09-15 18:19

Severity

3.3 (Low) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Summary

References

	URL	Tags
	cna@vuldb.com	https://github.com/LibreDWG/libredwg/commit/f5b548c4c1697d66c3dabd0f6a49280a14365a3a
	cna@vuldb.com	https://github.com/LibreDWG/libredwg/issues/1269
	cna@vuldb.com	https://github.com/LibreDWG/libredwg/releases/tag/0.14
	cna@vuldb.com	https://github.com/user-attachments/files/28549357/repro.zip
	cna@vuldb.com	https://vuldb.com/cve/CVE-2026-90622
	cna@vuldb.com	https://vuldb.com/submit/914770
	cna@vuldb.com	https://vuldb.com/vuln/403204
	cna@vuldb.com	https://vuldb.com/vuln/403204/cti
	cna@vuldb.com	https://www.gnu.org/
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/LibreDWG/libredwg/issues/1269

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:gnu:libredwg:*:*:*:*:*:*:*:*"
          ],
          "modules": [
            "Layer Encoding"
          ],
          "product": "libredwg",
          "vendor": "GNU",
          "versions": [
            {
              "status": "affected",
              "version": "0.13.4"
            },
            {
              "status": "unaffected",
              "version": "0.14"
            }
          ]
        }
      ],
      "source": "cna@vuldb.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A security flaw has been discovered in GNU libredwg 0.13.4. This impacts the function DWG_TABLE of the file src/dwg.spec of the component Layer Encoding. Performing a manipulation results in null pointer dereference. The attack needs to be approached locally. The exploit has been released to the public and may be used for attacks. Upgrading to version 0.14 will fix this issue. The patch is named f5b548c4c1697d66c3dabd0f6a49280a14365a3a. The affected component should be upgraded. The FIELD_HANDLE macro itself is NULL-safe (emits null_handle) - only the two raw zeroing assignments added by 27118c40 (\"encode: also disable LAYER.material\") dereferenced a NULL material handle; the fix restores the file\u0027s existing if (_obj-\u003estyle) guard convention for material."
    }
  ],
  "id": "CVE-2026-90622",
  "lastModified": "2026-09-15T18:19:37.603",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "LOW",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "SINGLE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 1.7,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:L/AC:L/Au:S/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 3.1,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "cna@vuldb.com",
        "type": "Secondary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "LOW",
          "baseScore": 3.3,
          "baseSeverity": "LOW",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 1.4,
        "source": "cna@vuldb.com",
        "type": "Secondary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "LOCAL",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 1.9,
          "baseSeverity": "LOW",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "PROOF_OF_CONCEPT",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "LOW",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "LOW",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "cna@vuldb.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-90622",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-15T17:28:26.418857Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-14T04:16:35.913",
  "references": [
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/LibreDWG/libredwg/commit/f5b548c4c1697d66c3dabd0f6a49280a14365a3a"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/LibreDWG/libredwg/issues/1269"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/LibreDWG/libredwg/releases/tag/0.14"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/user-attachments/files/28549357/repro.zip"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/cve/CVE-2026-90622"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/submit/914770"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/vuln/403204"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/vuln/403204/cti"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://www.gnu.org/"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/LibreDWG/libredwg/issues/1269"
    }
  ],
  "sourceIdentifier": "cna@vuldb.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-404"
        },
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "cna@vuldb.com",
      "type": "Secondary"
    }
  ]
}

GHSA-4MR5-PRF2-3X3C

Vulnerability from github – Published: 2026-09-14 06:31 – Updated: 2026-09-14 06:31

Details

Severity

3.3 (Low)


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

1.9 (Low)


                  
                    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-90622"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-404"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-14T04:16:35Z",
    "severity": "LOW"
  },
  "details": "A security flaw has been discovered in GNU libredwg 0.13.4. This impacts the function DWG_TABLE of the file src/dwg.spec of the component Layer Encoding. Performing a manipulation results in null pointer dereference. The attack needs to be approached locally. The exploit has been released to the public and may be used for attacks. Upgrading to version 0.14 will fix this issue. The patch is named f5b548c4c1697d66c3dabd0f6a49280a14365a3a. The affected component should be upgraded. The FIELD_HANDLE macro itself is NULL-safe (emits null_handle) - only the two raw zeroing assignments added by 27118c40 (\"encode: also disable LAYER.material\") dereferenced a NULL material handle; the fix restores the file\u0027s existing if (_obj-\u003estyle) guard convention for material.",
  "id": "GHSA-4mr5-prf2-3x3c",
  "modified": "2026-09-14T06:31:17Z",
  "published": "2026-09-14T06:31:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90622"
    },
    {
      "type": "WEB",
      "url": "https://github.com/LibreDWG/libredwg/issues/1269"
    },
    {
      "type": "WEB",
      "url": "https://github.com/LibreDWG/libredwg/commit/f5b548c4c1697d66c3dabd0f6a49280a14365a3a"
    },
    {
      "type": "WEB",
      "url": "https://github.com/LibreDWG/libredwg/releases/tag/0.14"
    },
    {
      "type": "WEB",
      "url": "https://github.com/user-attachments/files/28549357/repro.zip"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/cve/CVE-2026-90622"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/submit/914770"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/403204"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/403204/cti"
    },
    {
      "type": "WEB",
      "url": "https://www.gnu.org"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

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

Order 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.

Publication & reservation Sightings KEV catalogs Other timestamps

Loading timeline…

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

CVE-2026-90622 (GCVE-0-2026-90622)

FKIE_CVE-2026-90622

GHSA-4MR5-PRF2-3X3C

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour