{"cve":"CVE-2021-45911","nvd":{"published":"2021-12-28T01:15:07.600","modified":"2026-06-17T04:14:14.457","status":"Modified","description":"An issue was discovered in gif2apng 1.9. There is a heap-based buffer overflow in the main function. It allows an attacker to write 2 bytes outside the boundaries of the buffer.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-787"],"references":["https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1002687","https://lists.debian.org/debian-lts-announce/2022/03/msg00008.html","https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1002687","https://lists.debian.org/debian-lts-announce/2022/03/msg00008.html"],"products":["debian:debian_linux","gif2apng_project:gif2apng"],"source":"nvd","synced_at":"2026-10-19T21:26:33.761856376+00:00"},"epss":{"cve":"CVE-2021-45911","score":0.00896,"percentile":0.59561,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}