NULL Pointer Dereference Affecting shim package, versions *


Severity

Recommended
0.0
low
0
10

Based on Debian security rating.

Threat Intelligence

EPSS
0.13% (3rd percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-SHIM-18746984
  • published13 Aug 2026
  • disclosed10 Aug 2026

Introduced: 10 Aug 2026

CVE-2026-19411  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

There is no fixed version for Debian:unstable shim.

NVD Description

Note: Versions mentioned in the description apply only to the upstream shim package and not the shim package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1