{"id":"CVE-2020-28248","aliases":["GHSA-q5wr-fvpq-p67g"],"url":"https://o3.security/vulnerability/CVE-2020-28248","summary":"Integer Overflow in png-img","details":"An integer overflow in the PngImg::InitStorage_() function of png-img before 3.1.0 leads to an under-allocation of heap memory and subsequently an exploitable heap-based buffer overflow when loading a crafted PNG file.","published":"2021-02-20T00:15:12.483Z","modified":"2026-07-08T23:58:25.268992Z","cvss":{"score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"epss":{"score":0.02216,"percentile":0.81265,"asOf":"2026-08-20"},"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"npm","name":"png-img","fixedVersion":"3.1.0"}],"fix":{"url":"https://github.com/gemini-testing/png-img/commit/14ac462a32ca4b3b78f56502ac976d5b0222ce3d","label":"gemini-testing/png-img@14ac462"},"references":[{"type":"ADVISORY","url":"https://github.com/gemini-testing/png-img/compare/v3.0.0...v3.1.0"},{"type":"FIX","url":"https://github.com/gemini-testing/png-img/commit/14ac462a32ca4b3b78f56502ac976d5b0222ce3d"},{"type":"PACKAGE","url":"https://github.com/gemini-testing/png-img"},{"type":"EVIDENCE","url":"https://securitylab.github.com/advisories/GHSL-2020-142-gemini-png-img"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T23:58:25.268992Z"}}