{"id":"CVE-2025-6660","state":"PUBLISHED","title":"PDF-XChange Editor GIF File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability","description":"PDF-XChange Editor GIF File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.\n\nThe specific flaw exists within the parsing of GIF files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-26763.","publishedAt":"2025-06-25T21:40:27.368Z","updatedAt":"2025-06-26T14:12:02.268Z","severity":{"score":7.8,"label":"High","version":"3.0","vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","source":"zdi"},"assigner":"zdi","products":["PDF-XChange PDF-XChange Editor"],"affected":[{"vendor":"PDF-XChange","product":"PDF-XChange Editor","defaultStatus":"unknown","versions":[{"version":"10.5.2.395","status":"affected"}]}],"references":["https://www.zerodayinitiative.com/advisories/ZDI-25-443/","https://www.pdf-xchange.com/support/security-bulletins.html"],"weaknesses":["CWE-122"],"ingestedAt":"2026-10-29T20:10:04.440Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/6xxx/CVE-2025-6660.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-6660","state":"PUBLISHED","datePublished":"2025-06-25T21:40:27.368Z","dateUpdated":"2025-06-26T14:12:02.268Z","assignerShortName":"zdi","assignerOrgId":"99f1926a-a320-47d8-bbb5-42feb611262e","dateReserved":"2025-06-25T14:30:58.060Z"},"containers":{"cna":{"title":"PDF-XChange Editor GIF File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability","descriptions":[{"lang":"en","value":"PDF-XChange Editor GIF File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.\n\nThe specific flaw exists within the parsing of GIF files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-26763."}],"affected":[{"vendor":"PDF-XChange","product":"PDF-XChange Editor","defaultStatus":"unknown","versions":[{"version":"10.5.2.395","status":"affected"}]}],"references":[{"url":"https://www.zerodayinitiative.com/advisories/ZDI-25-443/","name":"ZDI-25-443","tags":["x_research-advisory"]},{"url":"https://www.pdf-xchange.com/support/security-bulletins.html","name":"vendor-provided URL","tags":["vendor-advisory"]}],"metrics":[{"format":"CVSS","cvssV3_0":{"version":"3.0","vectorString":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-122","lang":"en","description":"CWE-122: Heap-based Buffer Overflow","type":"CWE"}]}],"providerMetadata":{"shortName":"zdi","orgId":"99f1926a-a320-47d8-bbb5-42feb611262e","dateUpdated":"2025-06-25T21:40:27.368Z"},"dateAssigned":"2025-06-25T14:30:58.125Z","datePublic":"2025-06-25T21:36:06.977Z","source":{"lang":"en","value":"Rocco Calvi (@TecR0c) with TecSecurity"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-06-26T14:08:10.483075Z","id":"CVE-2025-6660","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-06-26T14:12:02.268Z"}}]}}}