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CVE-2004-0371

15
FAUCET Score

CVE-2004-0371 describes a vulnerability in Heimdal 0.5.x and 0.6.x versions where improper consistency checks for cross-realm requests allow attackers controlling a realm to impersonate others in the trust path. With a CVSS score of 5.0, this vulnerability is of medium severity, requiring no authentication and having low attack complexity, leading to potential integrity impacts. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
0.4aCPE matchmatch criteria
cpe:2.3:a:kth:heimdal:0.4a:*:*:*:*:*:*:*
0.4bCPE matchmatch criteria
cpe:2.3:a:kth:heimdal:0.4b:*:*:*:*:*:*:*
0.4cCPE matchmatch criteria
cpe:2.3:a:kth:heimdal:0.4c:*:*:*:*:*:*:*
0.4dCPE matchmatch criteria
cpe:2.3:a:kth:heimdal:0.4d:*:*:*:*:*:*:*
0.4eCPE matchmatch criteria
cpe:2.3:a:kth:heimdal:0.4e:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:P/A:N

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.53%
Probability of exploitation in next 30 days
EPSS Percentile
72.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0153 is in the 55th percentile among its peer group of 23,690 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, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (2)

debianpatch availablevia nvd_reference
View patch
gentoovendor investigatingvia nvd_reference
View patch

References

ftp.freebsd.org / pub/FreeBSD/CERT/advisories/FreeBSD-SA-04:08.heimdal.asc
ftp.openbsd.org / pub/OpenBSD/patches/3.5/common/009_kerberos.patch
security.gentoo.org / glsa/glsa-200404-09.xml
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/15701
debian.org / security/2004/dsa-476
PatchVendor Advisory
pdc.kth.se / heimdal/advisory/2004-04-01