Track vulnerabilities like this one.
Sign up free to get alerted when software you use is affected.
6.5
CVE-2026-16461: rpcbind: rpcinfo crashes when run on malicious server
CVE-2026-16461 · published 3 months ago
Summary
The rpcbind rpcinfo utility can crash if run against a compromised or malicious server. This can happen if an administrator or user runs rpcinfo with the -s option against a server that has been hacked or is trying to cause problems. To avoid crashes, avoid running rpcinfo against untrusted servers.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| – | red hat | red hat enterprise linux 10 | All versions |
| – | red hat | red hat enterprise linux 8 | All versions |
| – | red hat | red hat enterprise linux 9 | All versions |
| – | red hat | red hat openshift container platform 4 | All versions |
| Debian:11 | debian | rpcbind | All versions |
| Debian:12 | debian | rpcbind | All versions |
| Debian:13 | debian | rpcbind | All versions |
| Debian:14 | debian | rpcbind | All versions |
| Ubuntu:Pro:14.04:LTS | canonical | rpcbind | All versions |
Original advisory text
Rpcbind: rpcbind: stack buffer overflow in rpcinfo rpcbdump() short-mode version-list formatting
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.
References
- https://access.redhat.com/security/cve/CVE-2026-16461
- https://bugzilla.redhat.com/show_bug.cgi?id=2502719 Third Party Advisory
- https://security-tracker.debian.org/tracker/CVE-2026-16461 Vendor Advisory
- https://ubuntu.com/security/CVE-2026-16461 Third Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2026-16461 Third Party Advisory
Internet-facing
60 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit
- Gives an attacker partial control
Type
CWE-121Stack-based Buffer Overflow
Timeline
Published21 Jul 2026
Updated4 Nov 2026
First seen21 Jul 2026
Sources
CVE-2026-16461 · NVD
CVE-2026-16461 · MITRE
DEBIAN-CVE-2026-16461 · OSV
UBUNTU-CVE-2026-16461 · OSV
Track software like this
Free during beta