Dashboard / CVE-2026-112320

CVE-2026-112320

HIGH
MEDIUM Priority: 0.07 BB Relevance: 75/100
Published: 2026-11-09 Modified: 2026-11-13 First seen: 2026-11-09 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

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

Description

The GSS-RPC transport layer in MIT Kerberos 5 (aka krb5) 1.4 and later does not release the previous authentication context when a client switches from an RPCSEC_GSS or AUTH_GSSAPI flavor to a non-GSS flavor on the same TCP connection. This allows remote attackers to cause a denial of service (memory exhaustion in kadmind) by repeatedly establishing and abandoning GSS authentication contexts.

Weakness Classification (1)

References & Advisories (7)

https://access.redhat.com/errata/RHSA-2026:99624
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:99625
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:99715
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:99716
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:97811
vendor-advisory x_refsource_REDHAT

Bug Bounty Relevance

75 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

7.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.97%
Raw Score 0.009750
Percentile 62.6%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00975
2026-11-12
0.00731
2026-11-10
0.00731

Intelligence Sources

mitre ref →
nvd ref →

External Links