CVE-2026-26158

Name: CVE-2026-26158
Creator: NVD / NIST
Published: 2026-02-11T21:16:21.607+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7/10EPSS 0.16%

Last modified Jun 17, 2026

CVE-2026-26158 is a high-severity vulnerability rated 7/10 on the CVSS scale. A flaw was found in BusyBox. This vulnerability allows an attacker to modify files outside of the intended extraction directory by crafting a malicious tar archive containing unvalidated hardlink or symlink entries. EPSS estimates a 0.16% chance of exploitation in the next 30 days.

Description

A flaw was found in BusyBox. This vulnerability allows an attacker to modify files outside of the intended extraction directory by crafting a malicious tar archive containing unvalidated hardlink or symlink entries. If the tar archive is extracted with elevated privileges, this flaw can lead to privilege escalation, enabling an attacker to gain unauthorized access to critical system files.

Metrics

CVSS 3.1

7/10

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

0.16%

5.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-73

References

Timeline

Published: Feb 11, 2026
Last Modified: Jun 17, 2026
Status: Deferred

Frequently Asked Questions

What is CVE-2026-26158?

How severe is CVE-2026-26158?

CVE-2026-26158 has a CVSS score of 7/10 (HIGH severity). The EPSS model estimates a 0.16% probability of exploitation in the next 30 days.

How do I fix CVE-2026-26158?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-26158?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST