{"id":"CVE-2026-110654","title":"libzvbi through 0.2.45 contains an out-of-bounds write vulnerability in the Teletext decoder that allows attackers to corrupt memory by supplying unvalidated DRCS pixel-mode values in X/28/3 packets","summary":"libzvbi through 0.2.45 contains an out-of-bounds write vulnerability in the Teletext decoder that allows attackers to corrupt memory by supplying unvalidated DRCS pixel-mode values in X/28/3 packets. Attackers can send a crafted Teletext…","severity":"medium","cvss":6.1,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","cwe":["CWE-787"],"published":"2026-10-14","updated":"2026-10-14","sourceUpdated":"2026-10-14T16:17:42.070","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-110654","references":[{"url":"https://github.com/zapping-vbi/zvbi","label":"disclosure@vulncheck.com"},{"url":"https://github.com/zapping-vbi/zvbi/blob/d3a5ee9f2b047bf16cd1ee5ccf6ec05ee75409d0/src/packet.c#L447","label":"disclosure@vulncheck.com"},{"url":"https://hackmd.io/@haind-pwn/zvbi-teletext-drcs-mode-oob-write","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/libzvbi-through-0.2.45-out-of-bounds-write-via-teletext-drcs-convert-drcs","label":"disclosure@vulncheck.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-110654.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-110654"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-110654"}],"tags":["nvd","cve.org","csaf","vex","red-hat","exploit-available"],"ingestedAt":"2026-10-14T16:40:32.112Z","vendor":"zapping-vbi","product":"libzvbi","affected":["libzvbi <= 0.2.45"],"epss":0.0017,"epssPercentile":0.06385,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-20T01:25:53.736590Z"},"slug":"CVE-2026-110654","body":"## Overview\n\nlibzvbi through 0.2.45 contains an out-of-bounds write vulnerability in the Teletext decoder that allows attackers to corrupt memory by supplying unvalidated DRCS pixel-mode values in X/28/3 packets. Attackers can send a crafted Teletext stream decoded via vbi_decode with every slot set to DRCS_MODE_6_5_4, causing convert_drcs to overflow chars[48][60] and crash the application.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · updated 2026-10-16 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-110654.json)","depth":"twilight","depthScore":46,"depthScoreParts":{"impact":33.6,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[{"seq":225296,"id":"CVE-2026-110654","ts":1792461018354,"field":"exploit_available","old":"false","new":"true"}]}