CVE-2003-0059

Kerberos 5 vulnerability

CVSS

7.5

EPSS

3.6%

EPSS pct

88th

Exploited

No known

Unknown vulnerability in the chk_trans.c of the libkrb5 library for MIT Kerberos V5 before 1.2.5 allows users from one realm to impersonate users in other realms that have the same inter-realm keys.

Affected vendor

Mit

Affected product

Kerberos 5

CVSS vector

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

Published

2003-02-19

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no authentication. Successful exploitation leads to partial impact to confidentiality, partial impact to integrity, partial impact to availability.

Its EPSS score of 3.6% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 88% of all scored CVEs.

Check your external exposure to CVE-2003-0059

Confirm whether Mit Kerberos 5 is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2003-0059.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2003-0059

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2003-0059 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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