Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2002-2443

22
FAUCET Score

CVE-2002-2443 is a denial-of-service vulnerability affecting the kpasswd service in MIT Kerberos 5 (krb5) before version 1.11.3, impacting various distributions including Canonical, Debian, Fedora, openSUSE, and Red Hat. The flaw, rated with a CVSS score of 5.0, allows remote, unauthenticated attackers to cause CPU and bandwidth consumption through a communication loop triggered by specially crafted UDP packets. While the vulnerability is easily exploitable with low attack complexity, it only leads to a denial of service and does not compromise confidentiality or integrity. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.11.3CPE matchmatch criteria
cpe:2.3:a:mit:kerberos_5:*:*:*:*:*:*:*:*
11.4CPE matchmatch criteria
cpe:2.3:o:opensuse:opensuse:11.4:*:*:*:*:*:*:*
12.2CPE matchmatch criteria
cpe:2.3:o:opensuse:opensuse:12.2:*:*:*:*:*:*:*
12.3CPE matchmatch criteria
cpe:2.3:o:opensuse:opensuse:12.3:*:*:*:*:*:*:*
17CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:17:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

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

Exploit Intelligence

EPSS Score
6.49%
Probability of exploitation in next 30 days
EPSS Percentile
93.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0649 is in the 90th percentile among its peer group of 23,705 CVEs.

Social Chatter

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 (3)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: krb5-0:1.6.1-70.el5_9.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: krb5-0:1.10.3-10.el6_4.3
View patch

Vendor Advisories (1)

redhatCVE-2002-2443Moderate

krb5: UDP ping-pong flaw in kpasswd

Jun 16, 2002

References

krbdev.mit.edu / rt/Ticket/Display.html
Vendor Advisory
lists.fedoraproject.org / pipermail/package-announce/2013-May/105879.html
Third Party Advisory
lists.fedoraproject.org / pipermail/package-announce/2013-May/105978.html
Third Party Advisory
lists.fedoraproject.org / pipermail/package-announce/2013-May/106698.html
Third Party Advisory
lists.opensuse.org / opensuse-updates/2013-07/msg00004.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-updates/2013-07/msg00007.html
Mailing ListThird Party Advisory
rhn.redhat.com / errata/RHSA-2013-0942.html
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
github.com / krb5/krb5/commit/cf1a0c411b2668c57c41e9c4efd15ba17b6b322c
PatchThird Party Advisory
debian.org / security/2013/dsa-2701
Third Party Advisory
mandriva.com / security/advisories
Third Party Advisory
ubuntu.com / usn/USN-2810-1
Third Party Advisory