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TI-2026-05638 Aliases CVE-2026-6424GHSA-g4c4-fjm7-hv64

Use-after-free vulnerability in ESET security products for Linux

Priority LOW 29CWE-416Published · Updated

Key facts

Attack vector
Local
Privileges required
High
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-416 and the CVSS impact.

Summary

Use-after-free vulnerability in ESET Linux products potentially allowed an attacker to trigger kernel panic on the system

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0016 5th percentileScored 2026-11-07
Fix Fixed ESET Endpoint Antivirus for Linux (ESET, spol. s.r.o.): 13.2.3.0ESET Server Security for Linux (ESET, spol. s.r.o.): 13.2.53.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ESET, spol. s r.o.ESET Endpoint Antivirus for Linux13.1 – 13.1.3.0; 13.0 – 13.0.3.0; 12.2 – 12.2.8.0; 12.1 – 12.1.1.0; 12.0 – 12.0.13.013.2.3.0Patch availableCNA
ESET, spol. s r.o.ESET Server Security for Linux13.1 – 13.1.116.0; 13.0 – 13.0.34.0; 12.2 – 12.2.72.0; 12.1 – 12.1.406.0; 12.0 – 12.0.287.013.2.53.0Patch availableCNA
  • ESET Endpoint Antivirus for Linux VendorESET, spol. s r.o. Affected 13.1 – 13.1.3.0; 13.0 – 13.0.3.0; 12.2 – 12.2.8.0; 12.1 – 12.1.1.0; 12.0 – 12.0.13.0 Fixed in 13.2.3.0 Patch available CNA
  • ESET Server Security for Linux VendorESET, spol. s r.o. Affected 13.1 – 13.1.116.0; 13.0 – 13.0.34.0; 12.2 – 12.2.72.0; 12.1 – 12.1.406.0; 12.0 – 12.0.287.0 Fixed in 13.2.53.0 Patch available CNA

Remediation

  • Fix · CNA ESET Endpoint Antivirus for Linux (ESET, spol. s.r.o.) Fixed in 13.2.3.0
  • Fix · CNA ESET Server Security for Linux (ESET, spol. s.r.o.) Fixed in 13.2.53.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-6424
  2. 2026-10-03 Alias added: GHSA-g4c4-fjm7-hv64

References

Other 1

  • TI-2012-01283 The Gzip file parser in AVG Anti-Virus 10.0.0.1190, Bitdefender 7.2, Command Antivirus… CVSS 2.0MEDIUM 4.3
  • TI-2012-01281 The TAR file parser in AhnLab V3 Internet Security 2011.01.18.00, Avira AntiVir… CVSS 2.0MEDIUM 4.3
  • TI-2012-01279 The TAR file parser in Avira AntiVir 7.11.1.163, Antiy Labs AVL SDK 2.0.3.7, avast!… CVSS 2.0MEDIUM 4.3
  • TI-2012-01278 The TAR file parser in AVG Anti-Virus 10.0.0.1190, Quick Heal (aka Cat QuickHeal) 11.00… CVSS 2.0MEDIUM 4.3
  • TI-2012-01265 The RAR file parser in ClamAV 0.96.4, Rising Antivirus 22.83.00.03, Quick Heal (aka Cat… CVSS 2.0MEDIUM 4.3
  • TI-2012-01244 The TAR file parser in Quick Heal (aka Cat QuickHeal) 11.00, NOD32 Antivirus 5795, Norman… CVSS 2.0MEDIUM 4.3
See all 60 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences