CVE-2026-4407 Out-of-bounds array write in Xpdf 4.06 due to missing validation
An out-of-bounds array write in Xpdf allows attackers to execute arbitrary code or cause denial of service via malicious PDF files.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-4407?
CVE-2026-4407 is a low-severity memory corruption vulnerability in Xpdf, published on 18 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Out-of-bounds array write in Xpdf 4.06 and earlier, due to incorrect validation of the "N" field in ICCBased color spaces.
Which versions are affected by CVE-2026-4407?
How do I fix CVE-2026-4407?
No fix has been published for CVE-2026-4407 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-4407 being exploited?
There is no known exploitation of CVE-2026-4407 in the wild and no public exploit code.
Sources
Also known as GHSA-7cj6-p2f2-f38h, UBUNTU-CVE-2026-4407.