Integer overflow in LibRaw - CVE-2026-20884
Published: April 8, 2026
Vulnerability identifier: #VU125198
CSH Severity: High
CVSS v4: 9.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-20884
CWE-ID: CWE-190
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to integer overflow in the deflate_dng_load_raw functionality. A remote attacker can pass specially crafted file, trigger integer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
LibRaw
Fedora
mingw-LibRaw
Fedora
mingw-LibRaw
How to mitigate CVE-2026-20884
Install updates from vendor's website.
mingw-LibRaw - addressed in versions 0.21.5-3.fc42, 0.21.5-3.fc43