CVE-2026-16277 MEDIUM

CVE-2026-16277: Rpcbind: rpcbind: stack buffer overflow in rpcinfo rpcbaddrlist()

Vendor Red Hat
Product Red Hat Enterprise Linux 10
Weakness CWE-121
Published July 20, 2026
Last update July 21, 2026

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

July 20, 2026 CVE published
July 21, 2026 Record updated