Vulnerability-Lookup

GHSA-67VR-6JQ3-273M

Vulnerability from github – Published: 2026-07-13 03:31 – Updated: 2026-07-13 03:31

Details

A vulnerability was determined in GNU LibreDWG 0.13.4-154-g0b573035. This impacts the function decompress_R2004_section of the file src/decode.c of the component R2004 Section Decompression. Executing a manipulation can lead to heap-based buffer overflow. The attack requires local access. The exploit has been publicly disclosed and may be utilized. Upgrading to version 0.14.8396 will fix this issue. This patch is called 3d0f9fc2eddbd6579c99af3111c37c98f03475d0. You should upgrade the affected component.

Severity

5.3 (Medium)


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

1.9 (Low)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-15520"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-119"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-13T02:16:10Z",
    "severity": "LOW"
  },
  "details": "A vulnerability was determined in GNU LibreDWG 0.13.4-154-g0b573035. This impacts the function decompress_R2004_section of the file src/decode.c of the component R2004 Section Decompression. Executing a manipulation can lead to heap-based buffer overflow. The attack requires local access. The exploit has been publicly disclosed and may be utilized. Upgrading to version 0.14.8396 will fix this issue. This patch is called 3d0f9fc2eddbd6579c99af3111c37c98f03475d0. You should upgrade the affected component.",
  "id": "GHSA-67vr-6jq3-273m",
  "modified": "2026-07-13T03:31:48Z",
  "published": "2026-07-13T03:31:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-15520"
    },
    {
      "type": "WEB",
      "url": "https://github.com/LibreDWG/libredwg/issues/1251"
    },
    {
      "type": "WEB",
      "url": "https://github.com/LibreDWG/libredwg/commit/3d0f9fc2eddbd6579c99af3111c37c98f03475d0"
    },
    {
      "type": "WEB",
      "url": "https://github.com/HackC0der/CVE-Repos/blob/main/libredwg/libredwg_0b57303_heap_overflow_decompress_R2004_section.dwg"
    },
    {
      "type": "WEB",
      "url": "https://github.com/LibreDWG/libredwg/releases/tag/0.14.8396"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-qg2f-8389-w95j"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/cve/CVE-2026-15520"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/submit/851190"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/377849"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/377849/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:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/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"
    }
  ]
}

CVE-2026-15520 (GCVE-0-2026-15520)

Vulnerability from cvelistv5 – Published: 2026-07-13 01:15 – Updated: 2026-07-13 15:53 X_Open Source

Title

GNU LibreDWG R2004 Section Decompression decode.c decompress_R2004_section heap-based overflow

Summary

Severity

4.8 (Medium)


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

5.3 (Medium)


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

5.3 (Medium)


                        
                          CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/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 2026-07-13 15:53 UTC

CWE

CWE-122 - Heap-based Buffer Overflow
CWE-119 - Memory Corruption

Assigner

VulDB mitre root

References

10 references

URL	Tags
https://vuldb.com/vuln/377849	vdb-entrytechnical-description
https://vuldb.com/vuln/377849/cti	signaturepermissions-required
https://vuldb.com/cve/CVE-2026-15520	third-party-advisory
https://vuldb.com/submit/851190	third-party-advisory
https://github.com/LibreDWG/libredwg/issues/1251	issue-tracking
https://github.com/advisories/GHSA-qg2f-8389-w95j	broken-linkissue-tracking
https://github.com/HackC0der/CVE-Repos/blob/main/…	exploit
https://github.com/LibreDWG/libredwg/commit/3d0f9…	patch
https://github.com/LibreDWG/libredwg/releases/tag…	patch
https://www.gnu.org/	broken-linkproduct

Impacted products

1 product

Vendor	Product	Version
GNU	LibreDWG	Affected: 0.13.4-154-g0b573035 Unaffected: 0.14.8396 cpe:2.3:a:gnu:libredwg::::::::

Credits

Ech06 (VulDB User)

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-15520",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-13T15:53:23.251380Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-13T15:53:27.409Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/LibreDWG/libredwg/issues/1251"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:gnu:libredwg:*:*:*:*:*:*:*:*"
          ],
          "modules": [
            "R2004 Section Decompression"
          ],
          "product": "LibreDWG",
          "vendor": "GNU",
          "versions": [
            {
              "status": "affected",
              "version": "0.13.4-154-g0b573035"
            },
            {
              "status": "unaffected",
              "version": "0.14.8396"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Ech06 (VulDB User)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability was determined in GNU LibreDWG 0.13.4-154-g0b573035. This impacts the function decompress_R2004_section of the file src/decode.c of the component R2004 Section Decompression. Executing a manipulation can lead to heap-based buffer overflow. The attack requires local access. The exploit has been publicly disclosed and may be utilized. Upgrading to version 0.14.8396 will fix this issue. This patch is called 3d0f9fc2eddbd6579c99af3111c37c98f03475d0. You should upgrade the affected component."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 4.8,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P",
            "version": "4.0"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C",
            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 4.3,
            "vectorString": "AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:OF/RC:C",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
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          "descriptions": [
            {
              "cweId": "CWE-122",
              "description": "Heap-based Buffer Overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-119",
              "description": "Memory Corruption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-13T01:15:16.694Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
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      },
      "references": [
        {
          "name": "VDB-377849 | GNU LibreDWG R2004 Section Decompression decode.c decompress_R2004_section heap-based overflow",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/vuln/377849"
        },
        {
          "name": "VDB-377849 | CTI Indicators (IOB, IOC, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/vuln/377849/cti"
        },
        {
          "name": "CVE-2026-15520 | CVE Analysis and Report",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/cve/CVE-2026-15520"
        },
        {
          "name": "Submit #851190 | LibreDWG 0.13.4-154-g0b573035 (main branch, commit 0b573035, 2026-04-29) \u5185\u5b58\u635f\u574f (Heap Buffer Overflow - Write)",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/submit/851190"
        },
        {
          "tags": [
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          "url": "https://github.com/LibreDWG/libredwg/issues/1251"
        },
        {
          "tags": [
            "broken-link",
            "issue-tracking"
          ],
          "url": "https://github.com/advisories/GHSA-qg2f-8389-w95j"
        },
        {
          "tags": [
            "exploit"
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          "url": "https://github.com/HackC0der/CVE-Repos/blob/main/libredwg/libredwg_0b57303_heap_overflow_decompress_R2004_section.dwg"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/LibreDWG/libredwg/commit/3d0f9fc2eddbd6579c99af3111c37c98f03475d0"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/LibreDWG/libredwg/releases/tag/0.14.8396"
        },
        {
          "tags": [
            "broken-link",
            "product"
          ],
          "url": "https://www.gnu.org/"
        }
      ],
      "tags": [
        "x_open-source"
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      "timeline": [
        {
          "lang": "en",
          "time": "2026-07-12T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2026-07-12T02:00:00.000Z",
          "value": "VulDB entry created"
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        {
          "lang": "en",
          "time": "2026-07-12T13:32:32.000Z",
          "value": "VulDB entry last update"
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      "title": "GNU LibreDWG R2004 Section Decompression decode.c decompress_R2004_section heap-based overflow"
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  "cveMetadata": {
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    "datePublished": "2026-07-13T01:15:16.694Z",
    "dateReserved": "2026-07-12T11:27:17.703Z",
    "dateUpdated": "2026-07-13T15:53:27.409Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Detection rules are retrieved from Rulezet.

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

GHSA-67VR-6JQ3-273M

CVE-2026-15520 (GCVE-0-2026-15520)

Tags

Sightings

Nomenclature

Related by attack behaviour