CVE-2026-112318

MEDIUM
MEDIUM Priority: 0.05 BB Relevance: 63/100
Published: 2026-11-09 Modified: 2026-11-13 First seen: 2026-11-09 Status: active

Attack Surface

Network Low Complexity No Interaction

CVSS Vector Breakdown

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

Description

The policy RPC stubs in kadmin/server/server_stubs.c in MIT Kerberos 5 (aka krb5) 1.5.3 and later do not reject a NULL policy name decoded by xdr_nullstring(), which allows remote authenticated users to cause a denial of service (kadmind crash via NULL pointer dereference) by sending a policy request with an empty policy name that reaches authorization checks or logging code.

Weakness Classification (1)

Bug Bounty Relevance

63 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

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

EPSS — Exploitation Probability

0.75%
Raw Score 0.007540
Percentile 55.7%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00754
2026-11-12
0.00570
2026-11-10
0.00570

Intelligence Sources

mitre ref →
nvd ref →