Red Hat Security Advisory: rrdtool security update
Affects Red Hat rrdtoolSource GCVE Database
Not known to be exploited · CVSS 7.8 High.
Data as of 6 Nov 2026, 02:18 UTC
Thin evidence
One scorer or none| CNA (redhat) | CVSS 3.1 | 7.8 |
|---|
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 1 Jun 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 5 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Red Hat Enterprise Linux 10rrdtool | Affected– | Fixed in– |
| Red Hat Enterprise Linux 10.0 Extended Update Supportrrdtool | Affected– | Fixed in– |
| Red Hat Enterprise Linux 8rrdtool | Affected– | Fixed in– |
| Red Hat Enterprise Linux 9rrdtool | Affected– | Fixed in– |
| Red Hat Enterprise Linux 9.2 Update Services for SAP Solutionsrrdtool | Affected– | Fixed in– |
| Red Hat Enterprise Linux 9.4 Update Services for SAP Solutionsrrdtool | Affected– | Fixed in– |
AI-suggested
Red Hat has released updated rrdtool packages that fix this vulnerability. Users of Red Hat Enterprise Linux 9.6 Extended Update Support and related variants should apply the security update as described in the Red Hat advisory RHSA-2026:71600. No additional mitigation steps are indicated beyond applying the official patch.
Description
A stack buffer overflow vulnerability exists in rrdtool, a utility for storing and graphing time-series data. This flaw allows local attackers to execute code or cause denial of service. The issue is tracked as CVE-2026-43958 and has been rated with moderate severity by Red Hat. An update addressing this vulnerability is available for Red Hat Enterprise Linux 9.6 Extended Update Support and related variants.