{"id":"CVE-2026-111138","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-111138","generatedAt":"2026-10-28T05:27:44.197Z","title":"NetSurf libnsbmp through 0.1.7 contains an out-of-bounds read vulnerability in bmp_decode_rle8() and bmp_decode_rle4() because absolute-run bound checks omit the word-alignment pad byte.","description":"NetSurf libnsbmp through 0.1.7 contains an out-of-bounds read vulnerability in bmp_decode_rle8() and bmp_decode_rle4() because absolute-run bound checks omit the word-alignment pad byte. Attackers can supply a crafted RLE8 or RLE4 BMP ending on an odd-length absolute run to cause a one-byte heap over-read, crashing applications decoding untrusted images.","published":"2026-10-15T19:17:28.000Z","lastModified":"2026-10-16T18:25:45.000Z","status":"Deferred","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":6.8,"severity":"MEDIUM","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-125"],"affected":[],"epss":{"score":0.00128,"percentile":0.02427,"date":"2026-10-27","history":[{"date":"2026-10-16","score":0.0013,"percentile":0.02312}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.13%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-15T19:17:28.000Z","detail":{"score":"6.8","severity":"MEDIUM","publishedAt":"2026-10-15T19:17:27.840Z"},"summary":"New CVE, medium severity (CVSS 6.8)."}],"references":[{"url":"https://download.netsurf-browser.org/libs/releases/libnsbmp-0.1.7-src.tar.gz","source":"disclosure@vulncheck.com"},{"url":"https://github.com/netsurf-browser/libnsbmp","source":"disclosure@vulncheck.com"},{"url":"https://github.com/netsurf-browser/libnsbmp/blob/ea063c9f46acb43e90208da14073332b505ef7e7/src/libnsbmp.c#L1096-L1147","source":"disclosure@vulncheck.com"},{"url":"https://github.com/netsurf-browser/libnsbmp/blob/ea063c9f46acb43e90208da14073332b505ef7e7/src/libnsbmp.c#L942-L982","source":"disclosure@vulncheck.com"},{"url":"https://hackmd.io/@haind-pwn/libnsbmp-rle-absolute-pad-and-ico-mask-oob-read","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/netsurf-libnsbmp-through-0.1.7-out-of-bounds-read-in-rle8-and-rle4-decoders","source":"disclosure@vulncheck.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-111138","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}