How severe is CVE-2023-32665?

CVE-2023-32665 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-32665 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-32665?

CVE-2023-32665 affects Gnome Glib. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-32665?

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

When was CVE-2023-32665 published?

CVE-2023-32665 was published on 2023-09-14 and last updated on 2026-06-17.

CVE-2023-32665

CVE-2023-32665 is a medium-severity vulnerability in Gnome Glib with a CVSS 3.x base score of 5.5. 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 5.5)
EPSS exploit prediction: 0% (31st 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. GVariant deserialization is vulnerable to an exponential blowup issue where a crafted GVariant can cause excessive processing, leading to denial of service.

Frequently asked questions

What is CVE-2023-32665?: A flaw was found in GLib. GVariant deserialization is vulnerable to an exponential blowup issue where a crafted GVariant can cause excessive processing, leading to denial of service.
How severe is CVE-2023-32665?: CVE-2023-32665 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-32665 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-32665?: CVE-2023-32665 affects Gnome Glib. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-32665?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-32665 published?: CVE-2023-32665 was published on 2023-09-14 and last updated on 2026-06-17.

References

Affected products (1)

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

More vulnerabilities in Gnome Glib

CVE-2024-52533 — Critical (CVSS 9.8): gio/gsocks4aproxy.c in GNOME GLib before 2.82.1 has an off-by-one error and resultant buffer overflow because…
CVE-2019-12450 — Critical (CVSS 9.8): file_copy_fallback in gio/gfile.c in GNOME GLib 2.15.0 through 2.61.1 does not properly restrict file permissions while…
CVE-2018-16428 — Critical (CVSS 9.8): In GNOME GLib 2.56.1, g_markup_parse_context_end_parse() in gmarkup.c has a NULL pointer dereference.
CVE-2020-35457 — High (CVSS 7.8): GNOME GLib before 2.65.3 has an integer overflow, that might lead to an out-of-bounds write, in…
CVE-2009-3289 — High (CVSS 7.8): The g_file_copy function in glib 2.0 sets the permissions of a target file to the permissions of a symbolic link (777),…
CVE-2025-13601 — High (CVSS 7.7): A heap-based buffer overflow problem was found in glib through an incorrect calculation of buffer size in the…

All CVEs affecting Gnome Glib →

Other CWE-502 (Deserialization of Untrusted Data) vulnerabilities

CVE-2026-41104 — Critical (CVSS 10.0): Deserialization of untrusted data in Microsoft Planetary Computer Pro allows an unauthorized attacker to disclose…
CVE-2026-43633 — Critical (CVSS 10.0): HestiaCP versions 1.9.0 through 1.9.4 contain a deserialization vulnerability in the web terminal component caused by a…
CVE-2026-33819 — Critical (CVSS 10.0): Deserialization of untrusted data in Microsoft Bing allows an unauthorized attacker to execute code over a network.
CVE-2026-20131 — Critical (CVSS 10.0): A vulnerability in the web-based management interface of Cisco Secure Firewall Management Center (FMC) Software could…
CVE-2026-25632 — Critical (CVSS 10.0): EPyT-Flow is a Python package designed for the easy generation of hydraulic and water quality scenario data of water…
CVE-2025-14931 — Critical (CVSS 10.0): Hugging Face smolagents Remote Python Executor Deserialization of Untrusted Data Remote Code Execution Vulnerability.…

Browse all CWE-502 (Deserialization of Untrusted Data) vulnerabilities →