CVE-2025-9810
TOCTOU race in Linenoise enables arbitrary file overwrite and permission changes
TOCTOU in linenoiseHistorySave in linenoise allows local attackers to overwrite arbitrary files and change permissions via a symlink race between fopen("w") on the history path and subsequent chmod() on the same path.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
TOCTOU race in Linenoise enables arbitrary file overwrite and permission changes
TOCTOU in linenoiseHistorySave in linenoise allows local attackers to overwrite arbitrary files and change permissions via a symlink race between fopen("w") on the history path and subsequent chmod() on the same path.
- Record
CVE-2025-9810- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L - Weakness
- CWE-367
- Updated
- 2026-11-02
EUVDEUVD-2025-26353
TOCTOU in linenoiseHistorySave in linenoise allows local attackers to overwrite arbitrary files and change permissions via a symlink race between fopen("w") on the history path and subsequent chmod() on the same path.
- Record
EUVD-2025-26353- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-rj4f-7f4c-6qh7
TOCTOU in linenoiseHistorySave in linenoise allows local attackers to overwrite arbitrary files...
TOCTOU in linenoiseHistorySave in linenoise allows local attackers to overwrite arbitrary files and change permissions via a symlink race between fopen("w") on the history path and subsequent chmod() on the same path.
- Record
GHSA-rj4f-7f4c-6qh7- CVSS 3.1
- 5.8 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:L - Weakness
- CWE-367
- Updated
- 2026-11-02
NVD
TOCTOU in linenoiseHistorySave in linenoise allows local attackers to overwrite arbitrary files and change permissions via a symlink race between fopen("w") on the history path and subsequent chmod() on the same path.
- Record
CVE-2025-9810- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L - CVSS 3.1
- 5.8 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:L - Weakness
- CWE-367
- Updated
- 2026-11-02
OSV
TOCTOU race in Linenoise enables arbitrary file overwrite and permission changes
TOCTOU in linenoiseHistorySave in linenoise allows local attackers to overwrite arbitrary files and change permissions via a symlink race between fopen("w") on the history path and subsequent chmod() on the same path.
- Record
CVE-2025-9810- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L - Weakness
- CWE-367
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-9810 is a medium vulnerability (CVSS 6.8) in Antirez Linenoise, published September 1, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.11%, the 1st percentile. No source names a fixed version.
References
github.com/antirez/linenoise/blob/master/linenoise.c
nvd.nist.gov/vuln/detail/CVE-2025-9810