CVE-2024-52533VulnerabilityPublished 14 Jul 2025Updated 7 Sep 2026

Red Hat Security Advisory: glib2 security update

Affects Red HatSource GCVE Database

Mentioned vulnerabilities

CVE-2025-4373

Authoritative record:CVE-2024-52533· Critical 9.8

Not known to be exploited · CVSS 9.8 Critical : upgrade Red Hat to 10.2 as a priority.

Data as of 26 Oct 2026, 08:30 UTC

CVSS base score

9.8Critical

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 1.5% chance of exploitation in 30 days – higher than 74% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 10.2

Exploitation evidence

Disclosed: evidence found.
CVE published 11 Nov 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade Red Hat to 10.2.

Affected software

Product	Affected	Fixed in
Red Hat Product Security Red Hat	Affected >=10.0 <10.2 Red Hat Red Hat Enterprise Linux Red Hat Enterprise Linux AppStream (v. 10) Red Hat Enterprise Linux BaseOS (v. 10) Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)	Fixed in 10.2

AI-suggested

Red Hat has released updated glib2 packages for Red Hat Enterprise Linux 10 that address these vulnerabilities. Users should apply the security update as described in Red Hat advisory RHSA-2025:10855 and the related update article (https://access.redhat.com/articles/11258). No additional mitigation steps are indicated by the vendor.

Description

GLib provides the core application building blocks for libraries and applications written in C. It provides the core object system used in GNOME, the main loop implementation, and a large set of utility functions for strings and common data structures. Security Fix(es): * glib: buffer overflow in set_connect_msg() (CVE-2024-52533) * glib: Buffer Underflow on GLib through glib/gstring.c via function g_string_insert_unichar (CVE-2025-4373) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Impact

The vulnerabilities involve memory corruption (buffer overflow and buffer underflow) in GLib functions, which could lead to application crashes or potentially allow an attacker to execute arbitrary code if exploited. The security impact is rated as moderate by Red Hat Product Security. There are no known exploits in the wild at this time.

Summary

The GLib library, which provides core application building blocks for C libraries and applications including GNOME, has two security flaws: a buffer overflow in set_connect_msg() (CVE-2024-52533) and a buffer underflow in g_string_insert_unichar (CVE-2025-4373). These vulnerabilities could potentially lead to memory corruption issues. Red Hat has issued a security advisory (RHSA-2025:10855) and released updated packages for Red Hat Enterprise Linux 10 to remediate these issues.

CWE-193Off-by-one Error (opens in a new tab)
Base weakness
A product calculates or uses an incorrect maximum or minimum value that is 1 more, or 1 less, than the correct value.
Implementation
When copying character arrays or using character manipulation methods, the correct size parameter must be used to account for the null terminator that needs to be added at the end of the array.
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).
CWE-124Buffer Underwrite ('Buffer Underflow') (opens in a new tab)
Base weaknessLikelihood of exploit: Medium
The product writes to a buffer using an index or pointer that references a memory location prior to the beginning of the buffer.
Requirements
Choose a language that is not susceptible to these issues.
Implementation
All calculated values that are used as index or for pointer arithmetic should be validated to ensure that they are within an expected range.
OWASP Cheat Sheets
XML Security (opens in a new tab)
Mass Assignment (opens in a new tab)
OWASP ASVS 4.0.3
V13.3.1 (opens in a new tab)
V5.1.4 (opens in a new tab)
V5.1.3 (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

Community reviews

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 17 Aug 2026, 21:59 UTC

WeaknessesCWE-193, CWE-124

Technical details

References

Community reviews

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