Vulnerability · Published Aug 10, 2026 · Assigned by redhat
CVE-2026-19411Shim/dp.c library: null-pointer dereference in is_removable_media_path() when devicepathtostr() returns null
Low 3.9
In plain English
A low-severity null pointer dereference in Red Hat Enterprise Linux 7 from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 3% of all known vulnerabilities).
Severity (CVSS 3.1)3.9Low
Exploit odds (30 days)0.1%top 97.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | shim | no fix listed | DEBIAN-CVE-2026-19411 |
| Debian:13 | shim | no fix listed | DEBIAN-CVE-2026-19411 |
| Debian:14 | shim | no fix listed | DEBIAN-CVE-2026-19411 |
| Ubuntu:22.04:LTS | secureboot-db | no fix listed | UBUNTU-CVE-2026-19411 |
| Ubuntu:24.04:LTS | secureboot-db | no fix listed | UBUNTU-CVE-2026-19411 |
| Ubuntu:26.04:LTS | secureboot-db | no fix listed | UBUNTU-CVE-2026-19411 |
| Ubuntu:26.10 | secureboot-db | no fix listed | UBUNTU-CVE-2026-19411 |
| Ubuntu:22.04:LTS | shim | no fix listed | UBUNTU-CVE-2026-19411 |
| Ubuntu:24.04:LTS | shim | no fix listed | UBUNTU-CVE-2026-19411 |
| Ubuntu:26.04:LTS | shim | no fix listed | UBUNTU-CVE-2026-19411 |
| Ubuntu:26.10 | shim | no fix listed | UBUNTU-CVE-2026-19411 |
| Ubuntu:22.04:LTS | shim-signed | no fix listed | UBUNTU-CVE-2026-19411 |
| Ubuntu:24.04:LTS | shim-signed | no fix listed | UBUNTU-CVE-2026-19411 |
| Ubuntu:26.04:LTS | shim-signed | no fix listed | UBUNTU-CVE-2026-19411 |
| Ubuntu:26.10 | shim-signed | no fix listed | UBUNTU-CVE-2026-19411 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | Red Hat Enterprise Linux 7 | see references |
| Red Hat | Red Hat Enterprise Linux 8 | see references |
| Red Hat | Red Hat Enterprise Linux 9 | see references |
Weakness: CWE-476 · Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L
References
- https://access.redhat.com/security/cve/CVE-2026-19411 vdb-entry, x_refsource_REDHAT
- RHBZ#2513060 issue-tracking, x_refsource_REDHAT