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CVE-1999-1099

Kerberos 4 allows remote attackers to obtain sensitive information via a malformed UDP packet...

5.0 Medium

Kerberos 4 allows remote attackers to obtain sensitive information via a malformed UDP packet that generates an error string that inadvertently includes the realm name and the last user.

Exploit likelihood

1.31%Up 0.3 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 5.0

Kerberos 4 allows remote attackers to obtain sensitive information via a malformed UDP packet that generates an error string that inadvertently includes the realm name and the last user.

Record
CVE-1999-1099
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Updated
2026-11-02
CVE List No score

Kerberos 4 allows remote attackers to obtain sensitive information via a malformed UDP packet that generates an error string that inadvertently includes the realm name and the last user.

Record
CVE-1999-1099
Updated
2026-11-02
EUVDEUVD-1999-1080 No score

Kerberos 4 allows remote attackers to obtain sensitive information via a malformed UDP packet that generates an error string that inadvertently includes the realm name and the last user.

Record
EUVD-1999-1080
Updated
2026-11-03
GitHub AdvisoriesGHSA-2pcq-6v3q-5737 No score

Kerberos 4 allows remote attackers to obtain sensitive information via a malformed UDP packet...

Kerberos 4 allows remote attackers to obtain sensitive information via a malformed UDP packet that generates an error string that inadvertently includes the realm name and the last user.

Record
GHSA-2pcq-6v3q-5737
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-1999-1099 is a medium vulnerability (CVSS 5.0) in Kth Kerberos, published November 22, 1996. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.31%, the 70th percentile. No source names a fixed version.

References

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