Is CVE-2026-58011 in the CISA KEV catalog?

No. CVE-2026-58011 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-58011?

CVE-2026-58011 has a CVSS v3 base score of 6.5 (Moderate).

How do I fix CVE-2026-58011?

Upgrade glib2.0 on debian unstable to 2.88.1-2 or later.

CVE & CISA-KEV Catalog

CVE-2026-58011

MEDIUM

6.5

CVSS v3

NVD

Description

A flaw was found in GLib. An out-of-bounds read of only 2 bytes can occur in the g_date_time_get_ymd function in the glib/gdatetime.c file when an invalid GDateTime object produced by the g_date_time_add_full function is processed. This flaw can corrupt the date output and potentially cause logic errors that may lead to a denial of service.

CWE-125Out-of-bounds Read

How to fix

Remediation Available

glib2.0Debian

Fixed in:2.88.1-2CVE-2026-58011

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityLow

AvailabilityLow

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

Exploit Intelligence

EPSS data unavailable for this CVE.

References

Other references4

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-30.