CVE-2026-43958

HIGH
MEDIUM Priority: 0.01 BB Relevance: 41/100
Published: 2026-06-01 Modified: 2026-11-05 First seen: 2026-11-05 Status: active

Attack Surface

Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Unchanged
C: High
I: High
A: High

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.

Weakness Classification (1)

References & Advisories (9)

https://access.redhat.com/errata/RHSA-2026:33731
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:34155
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:34156
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:68702
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:71600
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:72277
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:72278
vendor-advisory x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2460932
issue-tracking x_refsource_REDHAT

Bug Bounty Relevance

41 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

7.8 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.18%
Raw Score 0.001760
Percentile 7.2%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00176
2026-11-13
0.00176
2026-11-12
0.00176
2026-11-10
0.00176
2026-11-09
0.00176
2026-11-08
0.00176
2026-11-07
0.00176
2026-11-06
0.00176
2026-11-05
0.00176

Intelligence Sources

mitre ref →
nvd ref →