CVERadar
HIGH · CVSS 3.1 7Exploit-DBEPSS 0.69% (p52)Threat level 42

CVE-2026-26157: CVE-2026-26157: A flaw was found in BusyBox. Incomplete path sanitization in its archive extraction utilit…

Unknown · · NVD published 2026-02-12 · posted 2026-04-30 · last modified 2026-07-15

What it is

A flaw was found in BusyBox. Incomplete path sanitization in its archive extraction utilities allows an attacker to craft malicious archives that when extracted, and under specific conditions, may write to files outside the intended directory. This can lead to arbitrary file overwrite, potentially enabling code execution through the modification of sensitive system files.

WeaknessCWE-73
CVSS vectorCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H (source: [email protected])
ATT&CK tacticsn/a

Exploitation evidence

First exploit evidence seen: 2026-04-30 (earliest date across the sources below).

Exploited in the wild

No source on this site lists in-the-wild exploitation yet (CISA KEV, VulnCheck KEV).

Public exploit code

Exploit-DB

  • EDB-52538: BusyBox 1.37.0 - Path Traversal (2026-04-30)

Sources: Exploit-DB (OffSec).

No ATT&CK techniques could be mapped or inferred for this CVE yet.

How to fix it

Fixed versions

NVD does not list a fixed version for this CVE. Use the vendor advisory below.

Derived from the NVD CPE configuration (versionEndExcluding / versionEndIncluding). Always confirm with the vendor advisory.

Vendor advisories and patches

No vendor-tagged reference yet; see the full reference list.

Detection Generic guidance

    Response checklist Generic guidance

    1. Inventory: find every instance of the affected product and version (include internet-facing and forgotten ones).
    2. Patch or mitigate per the vendor advisory; if you cannot patch, remove internet exposure or apply the vendor workaround.
    3. Assume compromise if the system was exposed before patching: hunt for the indicators in the advisory and review logs back to the disclosure date.
    4. Rotate credentials and secrets stored on or used by the affected system if compromise cannot be ruled out.

    Sources