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CVE-2015-8630

20
FAUCET Score

CVE-2015-8630 describes a denial-of-service vulnerability in MIT Kerberos 5 versions 1.12.x and 1.13.x before 1.13.4, and 1.14.x before 1.14.1. Remote authenticated users can crash the kadmind daemon by providing a NULL policy name to the kadm5_create_principal_3 or kadm5_modify_principal functions, leading to a NULL pointer dereference. This vulnerability has a CVSSv3 score of 7.5 (High), indicating a network-exploitable issue with low attack complexity and high impact on availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.12CPE matchmatch criteria
cpe:2.3:a:mit:kerberos_5:1.12:*:*:*:*:*:*:*
1.12.1CPE matchmatch criteria
cpe:2.3:a:mit:kerberos_5:1.12.1:*:*:*:*:*:*:*
1.12.2CPE matchmatch criteria
cpe:2.3:a:mit:kerberos_5:1.12.2:*:*:*:*:*:*:*
1.12.3CPE matchmatch criteria
cpe:2.3:a:mit:kerberos_5:1.12.3:*:*:*:*:*:*:*
1.12.4CPE matchmatch criteria
cpe:2.3:a:mit:kerberos_5:1.12.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
4.29%
Probability of exploitation in next 30 days
EPSS Percentile
90.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0429 is in the 82nd percentile among its peer group of 51,553 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: krb5-0:1.13.2-12.el7_2
View patch

Vendor Advisories (1)

redhatCVE-2015-8630Low

krb5: krb5 doesn't check for null policy when KADM5_POLICY is set in the mask

Jan 8, 2016

References

krbdev.mit.edu / rt/Ticket/Display.html
lists.opensuse.org / opensuse-updates/2016-02/msg00059.html
lists.opensuse.org / opensuse-updates/2016-02/msg00110.html
rhn.redhat.com / errata/RHSA-2016-0532.html
github.com / krb5/krb5/commit/b863de7fbf080b15e347a736fdda0a82d42f4f6b
Patch
debian.org / security/2016/dsa-3466
oracle.com / technetwork/topics/security/linuxbulletinapr2016-2952096.html
securitytracker.com / id/1034915