FKIE_CVE-2026-15520

Vulnerability from fkie_nvd - Published: 2026-07-13 02:16 - Updated: 2026-07-13 17:17
Severity
5.3 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Summary
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.
References
cna@vuldb.comhttps://github.com/HackC0der/CVE-Repos/blob/main/libredwg/libredwg_0b57303_heap_overflow_decompress_R2004_section.dwg
cna@vuldb.comhttps://github.com/LibreDWG/libredwg/commit/3d0f9fc2eddbd6579c99af3111c37c98f03475d0
cna@vuldb.comhttps://github.com/LibreDWG/libredwg/issues/1251
cna@vuldb.comhttps://github.com/LibreDWG/libredwg/releases/tag/0.14.8396
cna@vuldb.comhttps://github.com/advisories/GHSA-qg2f-8389-w95j
cna@vuldb.comhttps://vuldb.com/cve/CVE-2026-15520
cna@vuldb.comhttps://vuldb.com/submit/851190
cna@vuldb.comhttps://vuldb.com/vuln/377849
cna@vuldb.comhttps://vuldb.com/vuln/377849/cti
cna@vuldb.comhttps://www.gnu.org/
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/LibreDWG/libredwg/issues/1251
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "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"
            }
          ]
        }
      ],
      "source": "cna@vuldb.com"
    }
  ],
  "cveTags": [],
  "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."
    }
  ],
  "id": "CVE-2026-15520",
  "lastModified": "2026-07-13T17:17:14.273",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "SINGLE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 4.3,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:L/AC:L/Au:S/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 3.1,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "cna@vuldb.com",
        "type": "Secondary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "LOW",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.4,
        "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: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",
          "version": "4.0",
          "vulnAvailabilityImpact": "LOW",
          "vulnConfidentialityImpact": "LOW",
          "vulnIntegrityImpact": "LOW",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "cna@vuldb.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-15520",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-13T15:53:23.251380Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-13T02:16:10.543",
  "references": [
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/HackC0der/CVE-Repos/blob/main/libredwg/libredwg_0b57303_heap_overflow_decompress_R2004_section.dwg"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/LibreDWG/libredwg/commit/3d0f9fc2eddbd6579c99af3111c37c98f03475d0"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/LibreDWG/libredwg/issues/1251"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/LibreDWG/libredwg/releases/tag/0.14.8396"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/advisories/GHSA-qg2f-8389-w95j"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/cve/CVE-2026-15520"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/submit/851190"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/vuln/377849"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/vuln/377849/cti"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://www.gnu.org/"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/LibreDWG/libredwg/issues/1251"
    }
  ],
  "sourceIdentifier": "cna@vuldb.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        },
        {
          "lang": "en",
          "value": "CWE-122"
        }
      ],
      "source": "cna@vuldb.com",
      "type": "Secondary"
    }
  ]
}



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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

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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.