CVE-2026-107708

mediumpriority · track · 20EPSS 0.005 · 44 %ileDEFR

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.52% (44th) EPSS

CVSS 4.9 · medium

Is it mine?

3 products

Check your exposure

Who says so?

2 sources

cert_bund · certfr

EPSS · scored 2026-10-28

MIT krb5 through 1.22.2 contains a NULL pointer dereference vulnerability in the KDC's get_pac_princ_with_realm() that returns success while leaving the client principal NULL on malformed names. A malicious or compromised cross-realm trusted KDC can send an S4U2Proxy request with a PAC carrying a malformed client name to crash krb5kdc and deny authentication.

cvss

Technical severity, 0–10. One row per scoring source.

6.9

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.14.9mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:Hprimary · disclosure@vulncheck.comexploitability 1.2 · impact 3.6

v4.06.9mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · disclosure@vulncheck.com

v4.04.6mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-476US

affected products (3)

Products and version ranges known to be affected.

Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
MIT Kerberos< 1.23cert_bundDE

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-3836MIT Kerberos: Mehrere Schwachstellen ermöglichen Denial of ServiceDeutsch2026-10-08csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in MIT Kerberos ausnutzen, um einen Denial of Service Angriff durchzuführen.
CERTFR-2026-AVI-1385Multiples vulnérabilités dans les produits VMwareFrançais2026-10-26vendor · certfrFR

sources

Which sources assert this record, and when.

cert_bund certfr NVD CVE.org MITRE

published 2026-10-08modified 2026-10-14

references (6) nvd

External citations — patches, advisories, analysis.

scry

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