Out-of-bounds Write Affecting busybox package, versions [0,]
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-BUSYBOX-20074871
- published24 Sept 2026
- disclosed23 Sept 2026
- creditUnknown
Introduced: 23 Sep 2026
NewCVE-2026-88839 (opens in a new tab)How to fix?
There is no fixed version for busybox.
Overview
Affected versions of this package are vulnerable to Out-of-bounds Write in the tokenize process. An attacker can achieve arbitrary code execution or cause a denial of service by injecting a malformed entry that leads to an out-of-bounds write of heap pointers. This is only exploitable if the attacker already has root privileges and can modify protected system files such as /etc/group or /etc/passwd.
Workaround
This vulnerability can be mitigated by ensuring /etc/group and /etc/passwd are writable only by root and protected by mandatory access controls, and by monitoring these files for unauthorized modifications.