CVE-2023-0687

Name: CVE-2023-0687
Creator: NVD / NIST
Published: 2023-02-06T19:15:10.26+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.10%

Last modified Jun 17, 2026

CVE-2023-0687 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A vulnerability was found in GNU C Library 2.38. It has been declared as critical. EPSS estimates a 1.10% chance of exploitation in the next 30 days.

Description

A vulnerability was found in GNU C Library 2.38. It has been declared as critical. This vulnerability affects the function __monstartup of the file gmon.c of the component Call Graph Monitor. The manipulation leads to buffer overflow. It is recommended to apply a patch to fix this issue. VDB-220246 is the identifier assigned to this vulnerability. NOTE: The real existence of this vulnerability is still doubted at the moment. The inputs that induce this vulnerability are basically addresses of the running application that is built with gmon enabled. It's basically trusted input or input that needs an actual security flaw to be compromised or controlled.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

1.10%

61.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-120

Affected Software

Vendor	Product	Versions
Gnu	Glibc	< 2.38

References

https://patchwork.sourceware.org/project/glibc/patch/20230204114138.5436-1-leo%40yuriev.ru/Patch
https://sourceware.org/bugzilla/show_bug.cgi?id=29444Issue Tracking, Patch, Third Party Advisory
https://vuldb.com/?ctiid.220246Permissions Required, Third Party Advisory
https://vuldb.com/?id.220246Permissions Required, Third Party Advisory
https://patchwork.sourceware.org/project/glibc/patch/20230204114138.5436-1-leo%40yuriev.ru/Patch
https://sourceware.org/bugzilla/show_bug.cgi?id=29444Issue Tracking, Patch, Third Party Advisory
https://vuldb.com/?ctiid.220246Permissions Required, Third Party Advisory
https://vuldb.com/?id.220246Permissions Required, Third Party Advisory

Timeline

Published: Feb 6, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-0687?

How severe is CVE-2023-0687?

CVE-2023-0687 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.10% probability of exploitation in the next 30 days.

How do I fix CVE-2023-0687?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-0687?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST