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CVE-2024-54661

27
FAUCET Score

CVE-2024-54661 is a critical vulnerability affecting socat versions prior to 1.8.0.2, stemming from its reliance on a predictable temporary file path (/tmp/$USER/stderr2) in readline.sh. This flaw carries a CVSS score of 9.8, indicating a critical severity with a network-based attack vector, low attack complexity, and high potential for confidentiality, integrity, and availability compromise. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.6.0.0, < 1.8.0.2CPE match
cpe:2.3:a:dest-unreach:socat:*:*:*:*:*:*:*:*
>= 2.0.0-b1, <= 2.0.0-b9CPE match
cpe:2.3:a:dest-unreach:socat:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.80%
Probability of exploitation in next 30 days
EPSS Percentile
52.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0080 is in the 37th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (11)

microsoftpatch availablevia msrc
Product: cbl2 socat 1.7.4.3-2 on CBL Mariner 2.0Fixed in: 1.7.4.3-2
microsoftpatch availablevia msrc
Product: 17548-17084Fixed in: 1.7.4.4-2
microsoftpatch availablevia msrc
Product: 20066-17086Fixed in: 1.7.4.3-2
microsoftpatch availablevia msrc
Product: azl3 socat 1.7.4.4-2 on Azure Linux 3.0Fixed in: 1.7.4.4-2
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: socat-0:1.7.4.1-6.el9_6.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsFixed in: socat-0:1.7.4.1-5.el9_2.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: socat-0:1.7.4.1-2.el8_10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9.4 Extended Update SupportFixed in: socat-0:1.7.4.1-5.el9_4.3
View patch
ubuntupatch availablevia ubuntu_usn
Product: socat (noble)Fixed in: 1.8.0.0-4ubuntu0.1
ubuntupatch availablevia ubuntu_usn
Product: socat (resolute)Fixed in: 1.8.1.1-1ubuntu0.1
redhatvendor investigatingvia redhat_api
Product: Red Hat OpenShift Container Platform 4Fixed in: rhcos

Vendor Advisories (3)

ubuntuUSN-8511-1

socat vulnerabilities

Jul 6, 2026
microsoft2024-Dec/CVE-2024-54661Moderate

readline.sh in socat before1.8.0.2 relies on the /tmp/$USER/stderr2 file.

Dec 10, 2024
redhatCVE-2024-54661Moderate

socat: arbitrary file overwrite via predictable /tmp directory

Dec 4, 2024

References

repo.or.cz / socat.git/blob/6ff391324d2d3b9f6bfb58e7d16a20be43b47af7:/readline.sh
dest-unreach.org / socat/contrib/socat-secadv9.html