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CVE-2025-9810

21
FAUCET Score

CVE-2025-9810 is a Time-of-Check to Time-of-Use (TOCTOU) vulnerability in the linenoiseHistorySave function of the antirez linenoise library. This flaw allows local attackers to overwrite arbitrary files and change permissions via a symlink race condition. Rated Medium (CVSS 5.8), this vulnerability requires high attack complexity and local access, potentially leading to high integrity impact, along with low confidentiality and availability impacts. There is currently no evidence of active exploitation, nor are public exploits available in common databases like Metasploit or ExploitDB. Community discussion and media coverage are also absent, indicating low current attention.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:antirez:linenoise:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.8MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
LOW
Exploitability Score
2.5
Impact Score
4.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.10%
Probability of exploitation in next 30 days
EPSS Percentile
0.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0010 is in the 12th percentile among its peer group of 1,297 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.4 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (4)

redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 10Fixed in: valkey
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: redis
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: redis:7/redis
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: valkey

Vendor Advisories (1)

redhatCVE-2025-9810Moderate

linenoise: TOCTOU race in Linenoise enables arbitrary file overwrite and permission changes

Sep 1, 2025

References

github.com / antirez/linenoise/blob/master/linenoise.c
Product
github.com / antirez/linenoise/pull/202
Issue TrackingThird Party Advisory
github.com / antirez/linenoise/blob/4111f1d6cd29e136b4e86a25d1dd859a1e00813b/linenoise.c
github.com / antirez/linenoise/commit/f2558e1e588b1ba384ec73a2cf5c9a46409753db