HIGH
CVE-2019-12098
NVD-CWE-noinfoPublished: May 15, 2019· Updated: Jun 17, 2026
7.4
CVSS v3.1
Official Description
In the client side of Heimdal before 7.6.0, failure to verify anonymous PKINIT PA-PKINIT-KX key exchange permits a man-in-the-middle attack. This issue is in krb5_init_creds_step in lib/krb5/init_creds_pw.c.
Technical Analysis
CVE-2019-12098 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 7.4.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityHigh
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Affected Vendors & Products
Debian1 product(s)
debian linux
Fedora1 product(s)
fedora
heimdal_project1 product(s)
heimdal
openSUSE2 product(s)
backports sleleap
Source: NVD CPE · 8 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (22)
→
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00002.htmlMailing List · Third Party Advisory
→
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00003.htmlMailing List · Third Party Advisory
→
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00026.htmlMailing List · Third Party Advisory
→
http://www.h5l.org/pipermail/heimdal-announce/2019-May/000009.htmlPatch · Vendor Advisory
→
https://github.com/heimdal/heimdal/commit/2f7f3d9960aa6ea21358bdf3687cee5149aa35cfPatch · Third Party Advisory
→
https://github.com/heimdal/heimdal/compare/3e58559...bbafe72Patch · Third Party Advisory
→
https://github.com/heimdal/heimdal/releases/tag/heimdal-7.6.0Third Party Advisory
→
https://seclists.org/bugtraq/2019/Jun/1Mailing List · Third Party Advisory
→
https://www.debian.org/security/2019/dsa-4455Third Party Advisory
→
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00002.htmlMailing List · Third Party Advisory
→
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00003.htmlMailing List · Third Party Advisory
→
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00026.htmlMailing List · Third Party Advisory
→
http://www.h5l.org/pipermail/heimdal-announce/2019-May/000009.htmlPatch · Vendor Advisory
Quick Facts
CVE IDCVE-2019-12098
CVSS Score7.4 / 10
SeverityHIGH
WeaknessNVD-CWE-noinfo
CISA KEVNo
Affected4 vendor(s)
PublishedMay 15, 2019
Related CVEs (NVD-CWE-noinfo)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2019-12098 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.