{"cve":"CVE-2023-43907","nvd":{"published":"2023-10-01T01:15:24.947","modified":"2026-06-17T06:26:40.440","status":"Modified","description":"OptiPNG v0.7.7 was discovered to contain a global buffer overflow via the 'buffer' variable at gifread.c.","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-120"],"references":["http://optipng.sourceforge.net/","https://github.com/Frank-Z7/z-vulnerabilitys/blob/main/optipng-global-buffer-overflow1/optipng-global-buffer-overflow1.md","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IBHVG5LDE2K3FZSIK4XFXOUXSE7NZ5JH/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RCG5CMDT37WCZGAWQNOIPVP4VHGCPUU3/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VAB22JXDE7O27DYARZXC7PFUETM5OOT5/"],"products":["optipng_project:optipng"],"source":"nvd","synced_at":"2026-10-19T21:39:34.467980132+00:00"},"epss":{"cve":"CVE-2023-43907","score":0.00455,"percentile":0.39465,"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."]}