CVE-2026-19411
LOW 3.9A 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.
NO EXPLOITATION SIGNALS
No known exploitation, public exploit, or elevated probability at this time. Track for changes.
Exploitation likelihood
0.1%chance of exploitation in 30 days · 1st percentile
○ In CISA KEV
○ Public exploit / PoC
Impact if exploited
3.9CVSS 3.1 · LOW
- ConfidentialityNone
- IntegrityLow
- AvailabilityLow
What an attacker needs
- ⚠Access: Requires local access to the host
- ⚠Privileges: Requires an admin / high-privilege account
- ✓User interaction: No user interaction needed
- ⚠Complexity: Needs a race window or specific setup
✓ lowers the bar for an attacker · ⚠ raises it
Proof of concept & exploit code
- github-search Search GitHub for public PoC repos
Test against your own equipment
curl -s https://vulnpedia.com/cve/CVE-2026-19411/poc.jsonMachine-readable PoC index for this CVE (for automation).Listed for defensive triage, patch verification, and authorized testing on systems you own. Machine-readable: /cve/CVE-2026-19411/poc.json
Affected
Vendors Red Hat
Products Red Hat Enterprise Linux 7 Red Hat Enterprise Linux 8 Red Hat Enterprise Linux 9
Weakness (CWE)
- CWE-476: NULL Pointer Dereference
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L
All CVSS metrics
- LOW 3.9 v3.1 · CNA Primary
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L - LOW 3.9 v3.1 · NVD Secondary
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L