CVE Catalog

CVE-2026-43958

HighCVSS 7.8
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.13%

3th percentile - higher than 3% of all known CVEs

Summary

A stack-based buffer overflow flaw was found in rrdcached, a component of rrdtool. A local attacker with socket access can send an oversized CREATE request, crashing the daemon (denial of service) or potentially achieving arbitrary code execution.

Risk Assessment

Risk includes disruption of monitoring services relying on rrdtool and potential loss of data confidentiality and integrity if code execution is achieved.

Recommendation

Immediately update rrdtool to a patched version and restrict access to the rrdcached socket to trusted users only.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS