CVE-2026-112008
libmng: libmng: Denial of Service via heap-based buffer overflow in mng_read_ordr()
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 18, 2026
Updated · October 19, 2026
Description
A flaw was found in libmng. A heap-based buffer overflow vulnerability exists in the mng_read_ordr() function due to improper buffer allocation sizing when parsing chunk records in Multiple-image Network Graphics (MNG) files. An attacker could exploit this vulnerability by enticing a user or system to process a specially crafted MNG image. Successful exploitation allows an attacker to corrupt memory, causing an application crash and resulting in a Denial of Service (DoS).
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
CVSS / CWE
CVSS 3.1 · 6.1CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
CWE-787 · Out-of-bounds Write