CVE-2023-3326

criticalpriority · track · 39EPSS 0.011 · 65 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.10% (65th) EPSS

CVSS 9.8 · critical

Is it mine?

25 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

pam_krb5 authenticates a user by essentially running kinit with the password, getting a ticket-granting ticket (tgt) from the Kerberos KDC (Key Distribution Center) over the network, as a way to verify the password. However, if a keytab is not provisioned on the system, pam_krb5 has no way to validate the response from the KDC, and essentially trusts the tgt provided over the network as being valid. In a non-default FreeBSD installation that leverages pam_krb5 for authentication and does not have a keytab provisioned, an attacker that is able to control both the password and the KDC responses can return a valid tgt, allowing authentication to occur for any user on the system.

cvss

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

9.8

010

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

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

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

Exploitation: none · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-287USprimaryCWE-287USCWE-303USCWE-303US

affected products (25)

Products and version ranges known to be affected.

FreeBSD Project FreeBSD OSall versionscert_bundDEcpe:/o:freebsd:freebsd:-
FreeBSD FreeBSD12.4-RELEASE → 12.4-RELEASE-p3enisa_euvdEU
FreeBSD FreeBSD13.1-RELEASE → 13.1-RELEASE-p8enisa_euvdEU
FreeBSD FreeBSD13.2-RELEASE → 13.2-RELEASE-p1enisa_euvdEU
FreeBSD Project FreeBSD≤ 13.1 p5fstec_bduRU
FreeBSD Project FreeBSD≤ 13.1 p4fstec_bduRU
FreeBSD Project FreeBSD≤ 13.1 p3fstec_bduRU
FreeBSD Project FreeBSD≤ 13.1 p2fstec_bduRU
FreeBSD Project FreeBSD≤ 13.1 p1fstec_bduRU
FreeBSD Project FreeBSD≤ 13.1 b2-p2fstec_bduRU
FreeBSD Project FreeBSD≤ 13.1 b1-p1fstec_bduRU
FreeBSD Project FreeBSD≤ 12.4 rc2-p2fstec_bduRU
FreeBSD Project FreeBSD≤ 12.4 rc2-p1fstec_bduRU
FreeBSD Project FreeBSD≤ 12.4 p2fstec_bduRU
FreeBSD Project FreeBSD≤ 12.4 p1fstec_bduRU
FreeBSD Project FreeBSD≤ 12.4fstec_bduRU
FreeBSD Project FreeBSD≤ 13.1 rc1-p1fstec_bduRU
FreeBSD Project FreeBSD≤ 13.1 p7fstec_bduRU
FreeBSD Project FreeBSD≤ 13.1 p6fstec_bduRU
FreeBSD Project FreeBSD13.0 → 13.1fstec_bduRU

showing 20 of 25

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-1518FreeBSD Project FreeBSD OS: Schwachstelle ermöglicht Umgehen von SicherheitsvorkehrungenDeutsch2023-06-20csaf · cert_bundDE
Ein entfernter Angreifer kann eine Schwachstelle in FreeBSD Project FreeBSD OS ausnutzen, um Sicherheitsvorkehrungen zu umgehen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund NVD CVE.org MITRE

published 2023-06-22modified 2026-06-17

related (7,710)

Related entries.

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+7705 more

references (11)

External citations — patches, advisories, analysis.

scry

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