Is CVE-2026-6424 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-6424 being exploited in the wild.

How severe is CVE-2026-6424?

Informational severity, with a CVSS score of 6.7, published 16 July 2026.

Which products and versions are affected?

Eset Endpoint Antivirus for Linux 12.0.13.0 and earlier, 12.1.1.0 and earlier, 12.2.8.0 and earlier, 13.0.3.0 and earlier, 13.1.3.0 and earlier; Eset Server Security for Linux 12.0.287.0 and earlier, 12.1.406.0 and earlier, 12.2.72.0 and earlier, 13.0.34.0 and earlier, 13.1.116.0 and earlier.

Is there a fix for CVE-2026-6424?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-6424 attacked?

It is attacked with local access, in a network appliance.

Am I affected by CVE-2026-6424?

Check whether you run Eset Endpoint Antivirus for Linux or Eset Server Security for Linux at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-6424: ESET Linux products use-after-free causing kernel panic

CVE-2026-6424 · Severity: info · CVSS 6.7 · Published 2026-07-16

A vulnerability in ESET security software for Linux could allow an attacker with high-level system access to crash the computer. By triggering a specific sequence of system commands, the attacker can cause a 'kernel panic,' which immediately shuts down the server or workstation. This results in a complete service outage (denial-of-service) until the system is manually restarted.

Vendors: Eset.

Quick answers

Is CVE-2026-6424 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-6424 being exploited in the wild.
How severe is CVE-2026-6424?: Informational severity, with a CVSS score of 6.7, published 16 July 2026.
Which products and versions are affected?: Eset Endpoint Antivirus for Linux 12.0.13.0 and earlier, 12.1.1.0 and earlier, 12.2.8.0 and earlier, 13.0.3.0 and earlier, 13.1.3.0 and earlier; Eset Server Security for Linux 12.0.287.0 and earlier, 12.1.406.0 and earlier, 12.2.72.0 and earlier, 13.0.34.0 and earlier, 13.1.116.0 and earlier.
Is there a fix for CVE-2026-6424?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-6424 attacked?: It is attacked with local access, in a network appliance.
Am I affected by CVE-2026-6424?: Check whether you run Eset Endpoint Antivirus for Linux or Eset Server Security for Linux at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A use-after-free (UAF) vulnerability exists in ESET Endpoint Antivirus and Server Security for Linux (CWE-416). The flaw is triggered when a long-running syscall causes the product to access memory pages that have already been released. An attacker with high privileges (PR:H) can exploit this timing-sensitive condition locally to induce a kernel panic, leading to a complete system crash (Denial of Service). The issue has been resolved in multiple version branches, including Endpoint Antivirus 13.2.3.0+ and Server Security 13.2.53.0+.

Affected products

ESET ESET Endpoint Antivirus for Linux 12.0.13.0 and earlier, 12.1.1.0 and earlier, 12.2.8.0 and earlier, 13.0.3.0 and earlier, 13.1.3.0 and earlier
ESET ESET Server Security for Linux 12.0.287.0 and earlier, 12.1.406.0 and earlier, 12.2.72.0 and earlier, 13.0.34.0 and earlier, 13.1.116.0 and earlier

Timeline

2026-07-15: advisory: Initial advisory published by ESET (CA8972)
2026-07-16: disclosed: CVE-2026-6424 published to NVD

References

https://support.eset.com/en/ca8972-eset-customer-advisory-use-after-free-vulnerability-in-eset-security-products-for-linux-fixed

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