{"id":"CVE-2026-3776","state":"PUBLISHED","title":"Null pointer dereference in Foxit PDF Editor/Reader when accessing stamp annotation","description":"The application does not validate the presence of required appearance (AP) data before accessing stamp annotation resources. When a PDF contains a stamp annotation missing its AP entry, the code continues to dereference the associated object without a prior null or validity check, which allows a crafted document to trigger a null pointer dereference and crash the application, resulting in denial of service.","publishedAt":"2026-04-01T01:40:35.260Z","updatedAt":"2026-04-02T02:12:28.499Z","severity":{"score":5.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","source":"Foxit"},"assigner":"Foxit","products":["Foxit Software Inc. Foxit PDF Editor","Foxit Software Inc. Foxit PDF Reader"],"affected":[{"vendor":"Foxit Software Inc.","product":"Foxit PDF Editor","defaultStatus":"unaffected","versions":[{"version":"Versions 2025.3 and earlier","status":"affected"},{"version":"Versions 14.0.2 and earlier","status":"affected"},{"version":"Versions 13.2.2 and earlier","status":"affected"}],"platforms":["Windows","MacOS"]},{"vendor":"Foxit Software Inc.","product":"Foxit PDF Reader","defaultStatus":"unaffected","versions":[{"version":"Versions 2025.3 and earlier","status":"affected"}],"platforms":["Windows","MacOS"]}],"references":["https://www.foxit.com/support/security-bulletins.html"],"weaknesses":["CWE-476"],"ingestedAt":"2026-10-29T20:11:50.837Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/3xxx/CVE-2026-3776.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-3776","state":"PUBLISHED","datePublished":"2026-04-01T01:40:35.260Z","dateUpdated":"2026-04-02T02:12:28.499Z","assignerShortName":"Foxit","assignerOrgId":"14984358-7092-470d-8f34-ade47a7658a2","dateReserved":"2026-03-08T03:43:23.264Z"},"containers":{"cna":{"title":"Null pointer dereference in Foxit PDF Editor/Reader when accessing stamp annotation","descriptions":[{"lang":"en","value":"The application does not validate the presence of required appearance (AP) data before accessing stamp annotation resources. When a PDF contains a stamp annotation missing its AP entry, the code continues to dereference the associated object without a prior null or validity check, which allows a crafted document to trigger a null pointer dereference and crash the application, resulting in denial of service."}],"affected":[{"vendor":"Foxit Software Inc.","product":"Foxit PDF Editor","defaultStatus":"unaffected","versions":[{"version":"Versions 2025.3 and earlier","status":"affected"},{"version":"Versions 14.0.2 and earlier","status":"affected"},{"version":"Versions 13.2.2 and earlier","status":"affected"}],"platforms":["Windows","MacOS"]},{"vendor":"Foxit Software Inc.","product":"Foxit PDF Reader","defaultStatus":"unaffected","versions":[{"version":"Versions 2025.3 and earlier","status":"affected"}],"platforms":["Windows","MacOS"]}],"references":[{"url":"https://www.foxit.com/support/security-bulletins.html"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseSeverity":"MEDIUM","baseScore":5.5,"vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-476","lang":"en","description":"CWE-476 NULL pointer dereference","type":"CWE"}]}],"providerMetadata":{"shortName":"Foxit","orgId":"14984358-7092-470d-8f34-ade47a7658a2","dateUpdated":"2026-04-02T02:12:28.499Z"},"impacts":[{"descriptions":[{"lang":"en","value":"Denial of service"}]}],"credits":[{"lang":"en","value":"Suyue Guo from UCSB Seclab","type":"finder"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.1"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-01T14:16:53.743286Z","id":"CVE-2026-3776","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-01T15:50:55.555Z"}}]}}}