How severe is CVE-2023-32636?

CVE-2023-32636 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-32636 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-32636?

CVE-2023-32636 affects Gnome Glib. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-32636?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-32636 published?

CVE-2023-32636 was published on 2023-09-14 and last updated on 2026-06-17.

CVE-2023-32636

CVE-2023-32636 is a medium-severity vulnerability in Gnome Glib with a CVSS 3.x base score of 4.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-502.

Key facts

Severity: Medium (CVSS 3.x base score 4.7)
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
Affected product: Gnome Glib
Published: 2023-09-14
Last modified: 2026-06-17

Description

A flaw was found in glib, where the gvariant deserialization code is vulnerable to a denial of service introduced by additional input validation added to resolve CVE-2023-29499. The offset table validation may be very slow. This bug does not affect any released version of glib but does affect glib distributors who followed the guidance of glib developers to backport the initial fix for CVE-2023-29499.

Frequently asked questions

What is CVE-2023-32636?: A flaw was found in glib, where the gvariant deserialization code is vulnerable to a denial of service introduced by additional input validation added to resolve CVE-2023-29499. The offset table validation may be very slow. This bug does not affect any released version of glib but does affect glib distributors who followed the guidance of glib developers to backport the initial fix for CVE-2023-29499.
How severe is CVE-2023-32636?: CVE-2023-32636 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-32636 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-32636?: CVE-2023-32636 affects Gnome Glib. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-32636?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-32636 published?: CVE-2023-32636 was published on 2023-09-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:gnome:glib:*:*:*:*:*:*:*:*

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