Red HatCVE-2026-16277
Red Hat Enterprise Linux 10: stack buffer overflow
Medium6.5CVE-2026-16277 · Published Jul 20, 2026 · updated Jul 21, 2026
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.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| Red Hat Enterprise Linux 10 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 8 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 9 Product | all versions | No fix yet |
| Red Hat OpenShift Container Platform 4 Product | all versions | No fix yet |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-121
- www.cve.org/CVERecord?id=CVE-2026-16277
- nvd.nist.gov/vuln/detail/CVE-2026-16277
- access.redhat.com/security/cve/CVE-2026-16277
- bugzilla.redhat.com/show_bug.cgi?id=2462085
- git.linux-nfs.org/?p=steved/rpcbind.git;a=commitdiff;h=bb9bb7286a4c345442946dc2ce3c9e7f67e96d4d
- www.linuxfromscratch.org/blfs/advisories/consolidated.html
More Red Hat advisories
All Red Hat| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Jul 20 | Red Hat libcupsfilters: denial of service | High7.5 | No fix yet |
| Jul 20 | Red Hat: path traversal | Critical9.0 | No fix yet |
| Jul 20 | Red Hat Enterprise Linux 10: race condition | High7.3 | No fix yet |
| Jul 20 | Red Hat claircore: denial of service | Medium4.3 | No fix yet |
| Jul 20 | Red Hat: denial of service | Medium5.3 | No fix yet |
| Jul 20 | Red Hat Enterprise Linux 10: out-of-bounds write | Medium6.5 | No fix yet |