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CVE-2023-3326

25
FAUCET Score

CVE-2023-3326 is a critical authentication bypass vulnerability affecting FreeBSD installations utilizing pam_krb5 without a provisioned keytab. An attacker can exploit this by controlling both the user's password and the Kerberos KDC responses, allowing them to forge a valid ticket-granting ticket and authenticate as any user on the system. This vulnerability carries a CVSS score of 9.8 (Critical) due to its network-based attack vector, low complexity, and high impact on confidentiality, integrity, and availability. Currently, there is no public exploit code available, and the vulnerability has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 12.4CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*
>= 13.0, < 13.1CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*
12.4CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:12.4:-:*:*:*:*:*:*
12.4CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:12.4:p1:*:*:*:*:*:*
12.4CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:12.4:p2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.10%
Probability of exploitation in next 30 days
EPSS Percentile
62.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0110 is in the 48th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

security.freebsd.org / advisories/FreeBSD-SA-23:04.pam_krb5.asc
MitigationVendor Advisory
security.freebsd.org / advisories/FreeBSD-SA-23:09.pam_krb5.asc
security.netapp.com / advisory/ntap-20230714-0005
Third Party Advisory