Vulnerability Description
A stack-based buffer overflow was found in rpcbind's rpcinfo utility. When querying a remote rpcbind service with `rpcinfo -l`, address information returned by the server is copied into a fixed-size buffer without sufficient bounds checking. A malicious or compromised rpcbind server could use this flaw to crash the rpcinfo client, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://access.redhat.com/security/cve/CVE-2026-16277
- https://bugzilla.redhat.com/show_bug.cgi?id=2462085
- https://git.linux-nfs.org/?p=steved/rpcbind.git;a=commitdiff;h=bb9bb7286a4c34544
- https://www.linuxfromscratch.org/blfs/advisories/consolidated.html
FAQ
What is CVE-2026-16277?
CVE-2026-16277 is a vulnerability with a CVSS score of 6.5 (MEDIUM). A stack-based buffer overflow was found in rpcbind's rpcinfo utility. When querying a remote rpcbind service with `rpcinfo -l`, address information returned by the server is copied into a fixed-size b...
How severe is CVE-2026-16277?
CVE-2026-16277 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-16277?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.