{"id":"CVE-2026-112008","title":"libmng through 2.0.3 Heap Buffer Overflow via ORDR Chunk Reader mng_read_ordr","summary":"libmng through 2.0.3 contains a heap-based buffer overflow vulnerability in mng_read_ordr() that allows attackers to corrupt heap memory because ORDR entry buffers are sized by 5-byte on-wire records instead of 8-byte in-memory entries. …","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","cvssSource":"cna","cwe":["CWE-131","CWE-787"],"vendor":"libmng","product":"libmng","affected":["libmng <= 2.0.3"],"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-19T19:04:30.730248Z"},"exploitAvailable":true,"published":"2026-10-18","updated":"2026-10-19","sourceUpdated":"2026-10-19T19:04:44.302Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-112008","references":[{"url":"https://hackmd.io/@haindpwn/libmng-ordr-chunk-store-oob-write"},{"url":"https://sourceforge.net/projects/libmng/files/libmng-devel/2.0.3/"},{"url":"https://sourceforge.net/projects/libmng/"},{"url":"https://www.vulncheck.com/advisories/libmng-through-2.0.3-heap-buffer-overflow-via-ordr-chunk-reader-mng-read-ordr","label":"VulnCheck Advisory: libmng through 2.0.3 Heap Buffer Overflow via ORDR Chunk Reader mng_read_ordr"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-112008.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-112008"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2554765"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-112008"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112008"}],"tags":["cve.org","exploit-available","csaf","vex","red-hat"],"ingestedAt":"2026-10-18T11:40:26.622Z","epss":0.00144,"epssPercentile":0.03631,"slug":"CVE-2026-112008","body":"## Overview\n\nlibmng through 2.0.3 contains a heap-based buffer overflow vulnerability in mng_read_ordr() that allows attackers to corrupt heap memory because ORDR entry buffers are sized by 5-byte on-wire records instead of 8-byte in-memory entries. Attackers can supply a crafted MNG file with MHDR, DHDR and a multi-record ORDR chunk to applications calling mng_read or mng_readdisplay, writing attacker-controlled data past the allocation and crashing the application.\n\n## Affected\n\n- `libmng <= 2.0.3`\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** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, … · updated 2026-10-19 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-112008.json)","depth":"twilight","depthScore":46,"depthScoreParts":{"impact":33.6,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[{"seq":225123,"id":"CVE-2026-112008","ts":1792438793686,"field":"exploit_available","old":"false","new":"true"}]}