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 for Red Hat Enterprise Linux 9.4 and related variants that fix this vulnerability. Users should apply the official Red Hat update as described in the advisory (RHSA-2026:72278) to remediate this issue. No additional mitigation steps are indicated beyond applying the provided patch.
Description
A stack buffer overflow vulnerability (CVE-2026-43958) was identified in RRDtool, a utility for storing and graphing time-series data. This flaw allows local attackers to execute code or cause a denial of service. Red Hat has released a security update addressing this issue in Red Hat Enterprise Linux 9.4 variants. The vulnerability is rated with moderate severity by Red Hat Product Security.