CVE-2020-35457

Name: CVE-2020-35457
Creator: NVD / NIST
Published: 2020-12-14T23:15:12.173+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.57%

Last modified Jun 17, 2026

CVE-2020-35457 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. GNOME GLib before 2.65.3 has an integer overflow, that might lead to an out-of-bounds write, in g_option_group_add_entries. NOTE: the vendor's position is "Realistically this is not a security issue. EPSS estimates a 0.57% chance of exploitation in the next 30 days.

Description

GNOME GLib before 2.65.3 has an integer overflow, that might lead to an out-of-bounds write, in g_option_group_add_entries. NOTE: the vendor's position is "Realistically this is not a security issue. The standard pattern is for callers to provide a static list of option entries in a fixed number of calls to g_option_group_add_entries()." The researcher states that this pattern is undocumented

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

0.57%

42.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Gnome	Glib	< 2.65.3

References

https://gitlab.gnome.org/GNOME/glib/-/commit/63c5b62f0a984fac9a9700b12f54fe878e016a5dPatch, Vendor Advisory
https://gitlab.gnome.org/GNOME/glib/-/issues/2197Exploit, Vendor Advisory
https://gitlab.gnome.org/GNOME/glib/-/releases/2.65.3Release Notes, Vendor Advisory
https://gitlab.gnome.org/GNOME/glib/-/commit/63c5b62f0a984fac9a9700b12f54fe878e016a5dPatch, Vendor Advisory
https://gitlab.gnome.org/GNOME/glib/-/issues/2197Exploit, Vendor Advisory
https://gitlab.gnome.org/GNOME/glib/-/releases/2.65.3Release Notes, Vendor Advisory

Timeline

Published: Dec 14, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-35457?

How severe is CVE-2020-35457?

CVE-2020-35457 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.57% probability of exploitation in the next 30 days.

How do I fix CVE-2020-35457?

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-2020-35457?

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

Scan your code now

Source: NVD / NIST