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.
CVE-2007-4000
NONECVSS 0.0
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 6%CVSS: —Exploit: NoneExposed: 0
A fix is available — apply it.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 92.6%
- KEV
- Not listed
Published
September 5, 2007
Last Modified
April 23, 2026
References (44)
- cve@mitrehttp://secunia.com/advisories/26676
- cve@mitrehttp://secunia.com/advisories/26680
- cve@mitrehttp://secunia.com/advisories/26700
- cve@mitrehttp://secunia.com/advisories/26728
- cve@mitrehttp://secunia.com/advisories/26783
- cve@mitrehttp://secunia.com/advisories/26987
- cve@mitrehttp://securityreason.com/securityalert/3092
- cve@mitrehttp://web.mit.edu/Kerberos/advisories/MITKRB5-SA-2007-006.txt
- cve@mitrehttp://www.gentoo.org/security/en/glsa/glsa-200709-01.xml
- cve@mitrehttp://www.kb.cert.org/vuls/id/377544
- cve@mitrehttp://www.mandriva.com/security/advisories?name=MDKSA-2007:174
- cve@mitrehttp://www.novell.com/linux/security/advisories/2007_19_sr.html
- cve@mitrehttp://www.redhat.com/support/errata/RHSA-2007-0858.html
- cve@mitrehttp://www.securityfocus.com/archive/1/478794/100/0/threaded
- cve@mitrehttp://www.securityfocus.com/bid/25533
Frequently asked(4)
What is CVE-2007-4000?
CVE-2007-4000 is a none vulnerability published on September 5, 2007. The kadm5modifypolicyinternal function in lib/kadm5/srv/svrpolicy.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"…
When was CVE-2007-4000 disclosed?
CVE-2007-4000 was first published in the National Vulnerability Database on September 5, 2007, with the most recent update on April 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2007-4000 actively exploited?
CVE-2007-4000 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 92.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2007-4000?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2007-4000, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
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