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CVE-2017-15088

36
FAUCET Score

CVE-2017-15088 is a critical vulnerability affecting MIT Kerberos 5 (krb5) versions up to 1.15.2, specifically within the plugins/preauth/pkinit/pkinit_crypto_openssl.c component. It stems from improper handling of Distinguished Name (DN) fields, which can lead to a buffer overflow and application crash, or arbitrary code execution, when processing untrusted X.509 data. This vulnerability carries a CVSS score of 9.8 (Critical) due to its network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. While no public exploits or Metasploit modules are available, and it's not listed in the KEV catalog, community discussion is notably high, suggesting awareness despite the lack of active exploitation intelligence.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.15.2CPE matchmatch criteria
cpe:2.3:a:mit:kerberos_5:*:*:*:*:*:*:*:*

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
8.37%
Probability of exploitation in next 30 days
EPSS Percentile
94.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0837 is in the 90th percentile among its peer group of 36,862 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

Patch Available

Vendor Patches (3)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia nvd_reference
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: krb5

Vendor Advisories (1)

redhatCVE-2017-15088Moderate

krb5: Buffer overflow in get_matching_data()

Oct 25, 2017

References

bugs.debian.org / cgi-bin/bugreport.cgi
Issue TrackingThird Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatchThird Party Advisory
github.com / krb5/krb5/commit/fbb687db1088ddd894d975996e5f6a4252b9a2b4
Issue TrackingPatchThird Party Advisory
github.com / krb5/krb5/pull/707
PatchThird Party Advisory
securityfocus.com / bid/101594
Third Party AdvisoryVDB Entry