{"api_version":"1","generated_at":"2026-05-28T21:08:13+00:00","cve":"CVE-2026-9501","urls":{"html":"https://cve.report/CVE-2026-9501","api":"https://cve.report/api/cve/CVE-2026-9501.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-9501","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-9501"},"summary":{"title":"GNU LibreDWG Dwgread Utility decode.c decompress_R2004_section assertion","description":"A vulnerability was determined in GNU LibreDWG up to 0.14. The impacted element is the function decompress_R2004_section of the file src/decode.c of the component Dwgread Utility. Executing a manipulation can lead to reachable assertion. The attack is restricted to local execution. The exploit has been publicly disclosed and may be utilized. This patch is called e501cb9926c1e9a07a0d1cc997f3e69e9be801c9. A patch should be applied to remediate this issue.","state":"PUBLISHED","assigner":"VulDB","published_at":"2026-05-25 21:16:35","updated_at":"2026-05-26 19:54:40"},"problem_types":["CWE-617","CWE-617 Reachable Assertion"],"metrics":[{"version":"4.0","source":"cna@vuldb.com","type":"Secondary","score":"1.9","severity":"LOW","vector":"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","data":{"version":"4.0","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","baseScore":1.9,"baseSeverity":"LOW","attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"PROOF_OF_CONCEPT","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}},{"version":"4.0","source":"CNA","type":"DECLARED","score":"4.8","severity":"MEDIUM","vector":"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","data":{"baseScore":4.8,"baseSeverity":"MEDIUM","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","version":"4.0"}},{"version":"3.1","source":"cna@vuldb.com","type":"Primary","score":"3.3","severity":"LOW","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","baseScore":3.3,"baseSeverity":"LOW","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"LOW"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"3.3","severity":"LOW","vector":"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","data":{"baseScore":3.3,"baseSeverity":"LOW","vectorString":"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","version":"3.1"}},{"version":"3.0","source":"CNA","type":"DECLARED","score":"3.3","severity":"LOW","vector":"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","data":{"baseScore":3.3,"baseSeverity":"LOW","vectorString":"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","version":"3.0"}},{"version":"2.0","source":"cna@vuldb.com","type":"Secondary","score":"1.7","severity":"","vector":"AV:L/AC:L/Au:S/C:N/I:N/A:P","data":{"version":"2.0","vectorString":"AV:L/AC:L/Au:S/C:N/I:N/A:P","baseScore":1.7,"accessVector":"LOCAL","accessComplexity":"LOW","authentication":"SINGLE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL"}},{"version":"2.0","source":"CNA","type":"DECLARED","score":"1.7","severity":"","vector":"AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:OF/RC:C","data":{"baseScore":1.7,"vectorString":"AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:OF/RC:C","version":"2.0"}}],"references":[{"url":"https://github.com/LibreDWG/libredwg/commit/e501cb9926c1e9a07a0d1cc997f3e69e9be801c9","name":"https://github.com/LibreDWG/libredwg/commit/e501cb9926c1e9a07a0d1cc997f3e69e9be801c9","refsource":"cna@vuldb.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/LibreDWG/libredwg/issues/1242","name":"https://github.com/LibreDWG/libredwg/issues/1242","refsource":"cna@vuldb.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://vuldb.com/vuln/365483/cti","name":"https://vuldb.com/vuln/365483/cti","refsource":"cna@vuldb.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://vuldb.com/vuln/365483","name":"https://vuldb.com/vuln/365483","refsource":"cna@vuldb.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.gnu.org/","name":"https://www.gnu.org/","refsource":"cna@vuldb.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://vuldb.com/submit/814250","name":"https://vuldb.com/submit/814250","refsource":"cna@vuldb.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/HackC0der/CVE-Repos/blob/main/libredwg/libredwg_6d6a339_assert_fail_decompress_R2004_section.dwg","name":"https://github.com/HackC0der/CVE-Repos/blob/main/libredwg/libredwg_6d6a339_assert_fail_decompress_R2004_section.dwg","refsource":"cna@vuldb.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-9501","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-9501","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"GNU","product":"LibreDWG","version":"affected 0.1","platforms":[]},{"source":"CNA","vendor":"GNU","product":"LibreDWG","version":"affected 0.2","platforms":[]},{"source":"CNA","vendor":"GNU","product":"LibreDWG","version":"affected 0.3","platforms":[]},{"source":"CNA","vendor":"GNU","product":"LibreDWG","version":"affected 0.4","platforms":[]},{"source":"CNA","vendor":"GNU","product":"LibreDWG","version":"affected 0.5","platforms":[]},{"source":"CNA","vendor":"GNU","product":"LibreDWG","version":"affected 0.6","platforms":[]},{"source":"CNA","vendor":"GNU","product":"LibreDWG","version":"affected 0.7","platforms":[]},{"source":"CNA","vendor":"GNU","product":"LibreDWG","version":"affected 0.8","platforms":[]},{"source":"CNA","vendor":"GNU","product":"LibreDWG","version":"affected 0.9","platforms":[]},{"source":"CNA","vendor":"GNU","product":"LibreDWG","version":"affected 0.10","platforms":[]},{"source":"CNA","vendor":"GNU","product":"LibreDWG","version":"affected 0.11","platforms":[]},{"source":"CNA","vendor":"GNU","product":"LibreDWG","version":"affected 0.12","platforms":[]},{"source":"CNA","vendor":"GNU","product":"LibreDWG","version":"affected 0.13","platforms":[]},{"source":"CNA","vendor":"GNU","product":"LibreDWG","version":"affected 0.14","platforms":[]}],"timeline":[{"source":"CNA","time":"2026-05-25T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"source":"CNA","time":"2026-05-25T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"source":"CNA","time":"2026-05-25T12:09:56.000Z","lang":"en","value":"VulDB entry last update"}],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"pwn3rd (VulDB User)","lang":"en"}],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"9501","cve":"CVE-2026-9501","epss":"0.000130000","percentile":"0.022630000","score_date":"2026-05-27","updated_at":"2026-05-28 00:02:12"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"cpes":["cpe:2.3:a:gnu:libredwg:*:*:*:*:*:*:*:*"],"modules":["Dwgread Utility"],"product":"LibreDWG","vendor":"GNU","versions":[{"status":"affected","version":"0.1"},{"status":"affected","version":"0.2"},{"status":"affected","version":"0.3"},{"status":"affected","version":"0.4"},{"status":"affected","version":"0.5"},{"status":"affected","version":"0.6"},{"status":"affected","version":"0.7"},{"status":"affected","version":"0.8"},{"status":"affected","version":"0.9"},{"status":"affected","version":"0.10"},{"status":"affected","version":"0.11"},{"status":"affected","version":"0.12"},{"status":"affected","version":"0.13"},{"status":"affected","version":"0.14"}]}],"credits":[{"lang":"en","type":"reporter","value":"pwn3rd (VulDB User)"}],"descriptions":[{"lang":"en","value":"A vulnerability was determined in GNU LibreDWG up to 0.14. The impacted element is the function decompress_R2004_section of the file src/decode.c of the component Dwgread Utility. Executing a manipulation can lead to reachable assertion. The attack is restricted to local execution. The exploit has been publicly disclosed and may be utilized. This patch is called e501cb9926c1e9a07a0d1cc997f3e69e9be801c9. A patch should be applied to remediate this issue."}],"metrics":[{"cvssV4_0":{"baseScore":4.8,"baseSeverity":"MEDIUM","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","version":"4.0"}},{"cvssV3_1":{"baseScore":3.3,"baseSeverity":"LOW","vectorString":"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","version":"3.1"}},{"cvssV3_0":{"baseScore":3.3,"baseSeverity":"LOW","vectorString":"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","version":"3.0"}},{"cvssV2_0":{"baseScore":1.7,"vectorString":"AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:OF/RC:C","version":"2.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-617","description":"Reachable Assertion","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-05-25T20:30:14.389Z","orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","shortName":"VulDB"},"references":[{"name":"VDB-365483 | GNU LibreDWG Dwgread Utility decode.c decompress_R2004_section assertion","tags":["vdb-entry","technical-description"],"url":"https://vuldb.com/vuln/365483"},{"name":"VDB-365483 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"],"url":"https://vuldb.com/vuln/365483/cti"},{"name":"Submit #814250 | LibreDWG Project LibreDWG <= 0.14, main branch up to commit 6d6a339 (released 2026-04-10) Reachable Assertion (CWE-617)","tags":["third-party-advisory"],"url":"https://vuldb.com/submit/814250"},{"tags":["issue-tracking"],"url":"https://github.com/LibreDWG/libredwg/issues/1242"},{"tags":["exploit"],"url":"https://github.com/HackC0der/CVE-Repos/blob/main/libredwg/libredwg_6d6a339_assert_fail_decompress_R2004_section.dwg"},{"tags":["patch"],"url":"https://github.com/LibreDWG/libredwg/commit/e501cb9926c1e9a07a0d1cc997f3e69e9be801c9"},{"tags":["product"],"url":"https://www.gnu.org/"}],"tags":["x_open-source"],"timeline":[{"lang":"en","time":"2026-05-25T00:00:00.000Z","value":"Advisory disclosed"},{"lang":"en","time":"2026-05-25T02:00:00.000Z","value":"VulDB entry created"},{"lang":"en","time":"2026-05-25T12:09:56.000Z","value":"VulDB entry last update"}],"title":"GNU LibreDWG Dwgread Utility decode.c decompress_R2004_section assertion"}},"cveMetadata":{"assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","assignerShortName":"VulDB","cveId":"CVE-2026-9501","datePublished":"2026-05-25T20:30:14.389Z","dateReserved":"2026-05-25T10:03:51.326Z","dateUpdated":"2026-05-25T20:30:14.389Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-25 21:16:35","lastModifiedDate":"2026-05-26 19:54:40","problem_types":["CWE-617","CWE-617 Reachable Assertion"],"metrics":{"cvssMetricV40":[{"source":"cna@vuldb.com","type":"Secondary","cvssData":{"version":"4.0","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","baseScore":1.9,"baseSeverity":"LOW","attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"PROOF_OF_CONCEPT","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}],"cvssMetricV31":[{"source":"cna@vuldb.com","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","baseScore":3.3,"baseSeverity":"LOW","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"LOW"},"exploitabilityScore":1.8,"impactScore":1.4}],"cvssMetricV2":[{"source":"cna@vuldb.com","type":"Secondary","cvssData":{"version":"2.0","vectorString":"AV:L/AC:L/Au:S/C:N/I:N/A:P","baseScore":1.7,"accessVector":"LOCAL","accessComplexity":"LOW","authentication":"SINGLE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL"},"baseSeverity":"LOW","exploitabilityScore":3.1,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"9501","Ordinal":"1","Title":"GNU LibreDWG Dwgread Utility decode.c decompress_R2004_section a","CVE":"CVE-2026-9501","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"9501","Ordinal":"1","NoteData":"A vulnerability was determined in GNU LibreDWG up to 0.14. The impacted element is the function decompress_R2004_section of the file src/decode.c of the component Dwgread Utility. Executing a manipulation can lead to reachable assertion. The attack is restricted to local execution. The exploit has been publicly disclosed and may be utilized. This patch is called e501cb9926c1e9a07a0d1cc997f3e69e9be801c9. A patch should be applied to remediate this issue.","Type":"Description","Title":"GNU LibreDWG Dwgread Utility decode.c decompress_R2004_section a"}]}}}