Cyber Resilience

CVE-2026-58013

MediumPublic PoC

Published: 30 June 2026

Published
30 June 2026
Modified
02 July 2026
KEV Added
—
Patch
—
CVSS Score v3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
EPSS Score 0.0033 24.8th percentile
Risk Priority 35 floored blend · peak EPSS

Summary

CVE-2026-58013 is a medium-severity Buffer Over-read (CWE-126) vulnerability in Redhat Enterprise Linux. Its CVSS base score is 6.5 (Medium).

Operationally, ranked at the 24.8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

A flaw was found in GLib. A buffer over-read can occur in g_io_channel_read_line_backend() in the giochannel.c file when a custom line terminator with a length greater than one is set, causing memcmp to read past the GString buffer. This vulnerability…

more

can cause a minor information disclosure of 7 bytes or a denial of service when the buffer over-read crosses a page boundary.

CWE(s)
CWE-126

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

Insufficient information to map techniques.
Confidence: LOW · MITRE ATT&CK Enterprise v19.0

Affected Assets

gnome
glib
≤ 2.88.1
redhat
enterprise linux
10.0, 6.0, 7.0, 8.0, 9.0

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References