CVE-2026-19411 Shim/dp.c library: null-pointer dereference in is_removable_media_path() when devicepathtostr() returns null
Attackers can cause a denial of service in systems using the shim UEFI bootloader due to a null pointer dereference in the dp.c library.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-19411?
CVE-2026-19411 is a low-severity vulnerability in Red Hat Enterprise Linux 7, published on 10 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A NULL pointer vulnerability has been found in the the shim application of dp.c library. A missing NULL pointer could allow attackers to perform a denial of service attack on a system that uses shim application for UEFI bootloader.
Weakness: CWE-476
Which versions are affected by CVE-2026-19411?
How do I fix CVE-2026-19411?
No fix has been published for CVE-2026-19411 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-19411 being exploited?
There is no known exploitation of CVE-2026-19411 in the wild and no public exploit code.
Sources
Also known as AZL-95634, AZL-95637, DEBIAN-CVE-2026-19411, GHSA-53vg-jq3h-5r52, UBUNTU-CVE-2026-19411.