MEDIUM 6.9 NVD
CVE-2026-112008
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 buff
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. 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.
References
- https://hackmd.io/@haindpwn/libmng-ordr-chunk-store-oob-write
- https://sourceforge.net/projects/libmng/
- https://sourceforge.net/projects/libmng/files/libmng-devel/2.0.3/
- https://www.vulncheck.com/advisories/libmng-through-2.0.3-heap-buffer-overflow-via-ordr-ch
This medium severity vulnerability with a CVSS score of 6.9 was published on 2026-10-18 via NVD.
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