CVE-2026-16461

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 63/100
Published: 2026-07-21 Modified: 2026-11-05 First seen: 2026-11-05 Status: active

Attack Surface

Network Low Complexity No Auth

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: Required
S: Unchanged
C: None
I: None
A: High

Description

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.

Weakness Classification (1)

References & Advisories (2)

https://bugzilla.redhat.com/show_bug.cgi?id=2502719
issue-tracking x_refsource_REDHAT

Bug Bounty Relevance

63 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

6.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.26%
Raw Score 0.002590
Percentile 17.7%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00259
2026-11-13
0.00259
2026-11-12
0.00259
2026-11-10
0.00259
2026-11-09
0.00259
2026-11-08
0.00259
2026-11-07
0.00259
2026-11-06
0.00259
2026-11-05
0.00259

Intelligence Sources

mitre ref →
nvd ref →