CVE-2026-16461
A stack-based buffer overflow was found in rpcbind's rpcinfo utility. In rpcbdump() short mode (used by rpcinfo -s), version numbers from a remote RPCBPROC_DUMP reply are written into a fixed-size stack buffer without bounds checking. A user or administrator who runs rpcinfo -s against a malicious or compromised rpcbind endpoint could experience a crash or denial of service of the rpcinfo client.
CSIRTS triage
- What
- There is a stack buffer overflow in the rpcinfo rpcbdump() function that could lead to potential exploitation.
- Who is affected
- Deployments of rpcbind are affected.
- Urgency
- Remediation is medium urgency due to the risk of exploitation, though it has not been reported as actively exploited.
- Action
- Update rpcbind to the latest version to mitigate the vulnerability.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.23% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 14% of all EPSS-scored CVEs.
Advisory coverage (2)
External references
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