CVE-2007-4000

What it is

The kadm5_modify_policy_internal function in lib/kadm5/srv/svr_policy.c in the Kerberos administration daemon (kadmind) in MIT Kerberos 5 (krb5) 1.5 through 1.6.2 does not properly check return values when the policy does not exist, which might allow remote authenticated users with the "modify policy" privilege to execute arbitrary code via unspecified vectors that trigger a write to an uninitialized pointer.

At a glance

Exploitability

Can be exploited over the network with a login. High risk of data exposure, data tampering, service disruption.

Exploit odds

6.1% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2007-09-05 10:17 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-16 22:43 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 6.1% in the next 30 days (EPSS).
• Severity: 8.5 HIGH (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2007-09-05 10:17 UTC

Last modified

2026-06-16 22:43 UTC

Exploit probability

6.1% · EPSS, next 30 days

Weakness

CWE-824

Record status

Modified

Affected

• Mit Kerberos 5 ≤ 1.6.2
• Fedoraproject Fedora 7

Attack profile CVSS 2.0 · 8.5

Attack vector

Network

Complexity

Medium

Authentication

Single

Confidentiality

Complete

Integrity

Complete

Availability

Complete

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2007-4000.md and follow it. Check whether this project is affected by CVE-2007-4000. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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