CVE-2026-43958: Rrdtool: rrdtool: stack buffer overflow allows local code execution or denial of service
CSIRTS triage
- What
- A stack buffer overflow allows local code execution or denial of service.
- Who is affected
- Users of Rrdtool are affected.
- Urgency
- Remediation is high urgency due to the potential for both remote code execution and denial of service.
- Action
- Update to the latest version of Rrdtool.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-43958
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-439580.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-43958 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
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