CVE-2026-43958

Rrdtool: rrdtool: stack buffer overflow allows local code execution or denial of service

State: Published
Severity: 7.8 High
Published: Jun 1, 2026
Updated: Sep 28, 2026
Reserved: May 4, 2026

Description

A flaw was found in rrdcached, a component of rrdtool. A local attacker with access to a rrdcached socket can exploit a stack-based buffer overflow by sending an oversized CREATE request. This vulnerability can lead to a denial of service by crashing the daemon or potentially allow for arbitrary code execution, impacting the integrity and confidentiality of data.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	redhat

Weaknesses

CWE-121 Stack-based Buffer Overflow

Affected Products

Product	Versions
Red Hat Enterprise Linux 10Red Hat	0:1.8.0-21.el10_2 and laterNot affected
Red Hat Enterprise Linux 10.0 Extended Update SupportRed Hat	0:1.8.0-20.el10_0.1 and laterNot affected
Red Hat Enterprise Linux 8Red Hat	0:1.7.0-17.el8_10 and laterNot affected
Red Hat Enterprise Linux 9Red Hat	0:1.7.2-22.el9_8 and laterNot affected
Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsRed Hat	0:1.7.2-21.el9_2.1 and laterNot affected
Red Hat Enterprise Linux 9.4 Update Services for SAP SolutionsRed Hat	0:1.7.2-21.el9_4.1 and laterNot affected
Red Hat Enterprise Linux 9.6 Extended Update SupportRed Hat	0:1.7.2-21.el9_6.1 and laterNot affected
Red Hat Enterprise Linux 6Red Hat
Red Hat Enterprise Linux 7Red Hat

References

RHSA-2026:33731vendor-advisory
RHSA-2026:34155vendor-advisory
RHSA-2026:34156vendor-advisory
RHSA-2026:68702vendor-advisory
RHSA-2026:71600vendor-advisory
RHSA-2026:72277vendor-advisory
RHSA-2026:72278vendor-advisory
https://access.redhat.com/security/cve/CVE-2026-43958vdb-entry
RHBZ#2460932issue-tracking

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