Out-of-bounds write in Exiv2 - #VU146328
Published: August 31, 2026
Vulnerability identifier: #VU146328
CSH Severity: Medium
CVSS v4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to out-of-bounds write in RemoteIo::mmap when listing available image previews from a URL input. A remote attacker can provide a specially crafted image URL to cause a denial of service.
The issue affects the RemoteIo code path and is triggered when Exiv2 is run on a URL rather than a local file using the -pp command line option.
Affected software
Exiv2
Remediation
Install security update from vendor's website.
Exiv2 - update to 0.28.9