All vulnerabilities
CVE-2026-112008

libmng through 2.0.3 Heap Buffer Overflow via ORDR Chunk Reader mng_read_ordr

libmng libmng
Open in ThreatlineRecord JSON
CVSS
6.9Medium
ExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 19 Oct 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)0.14%Chance of exploitation activity in the next 30 days, higher than 3% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published18 Oct 2026Updated 19 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Description

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.

Text from CVE List

Affected versions 1

  • libmngaffected: all versions through 2.0.3CVE List

References 4