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CVE-2026-43958VulnerabilityPublished Updated

SUSE · Security update for rrdtool

Affects SUSESource GCVE Database

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Authoritative record:CVE-2026-43958· High 7.8

Not known to be exploited · CVSS 7.8 High.

Data as of 10 Nov 2026, 20:06 UTC

CVSS 3.1 base score
7.8High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (redhat)CVSS 3.17.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 1 Jun 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Red Hat Enterprise Linux 10rrdtoolAffected–Fixed in–
Red Hat Enterprise Linux 10.0 Extended Update SupportrrdtoolAffected–Fixed in–
Red Hat Enterprise Linux 8rrdtoolAffected–Fixed in–
Red Hat Enterprise Linux 9rrdtoolAffected–Fixed in–
Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsrrdtoolAffected–Fixed in–
Red Hat Enterprise Linux 9.4 Update Services for SAP SolutionsrrdtoolAffected–Fixed in–

Description

This update for rrdtool fixes the following issue: - CVE-2026-43958: stack buffer overflow in `rrdcached` `handle_request_create()` can lead to local privilege escalation via unbounded DS/RRA arguments (bsc#1267243).

References

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