The kadm_ser_in function in (1) the Kerberos v4compatibility administration daemon (kadmind4) in the MIT Kerberos 5 (krb5) krb5-1.2.6 and earlier, (2) kadmind in KTH Kerberos 4 (eBones) before 1.2.1, and (3) kadmind in KTH Kerberos 5 (Heimdal) before 0.5.1 when compiled with Kerberos 4 support, does not properly verify the length field of a request, which allows remote attackers to execute arbitrary code via a buffer overflow attack.
Conclusion & alert: CVE-2002-1235 is rated High Risk (68.7/100): CVSS Critical severity, with high exploitation likelihood (EPSS 15.10%, 96th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 32.92% | 15.10% | -17.81% |
| 2 | 2025-03-30 | 37.86% | 32.92% | -4.94% |
| 3 | 2025-03-29 | — | 37.86% | — |
Full EPSS history (8 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 10.0 | 2.0 | HIGH |
|
10.0 | 10.0 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2002-1235 not yet assigned priority: Debian including 2 source packages (heimdal, krb5), 10 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 10. | https://security-tracker.debian.org/tracker/CVE-2002-1235 |
redhat
|
critical | — | https://access.redhat.com/security/cve/CVE-2002-1235 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| kth | kth_kerberos_4 | < 1.2.1 | cpe:2.3:a:kth:kth_kerberos_4:*:*:*:*:*:*:*:* |
| kth | kth_kerberos_5 | < 0.5.1 | cpe:2.3:a:kth:kth_kerberos_5:*:*:*:*:*:*:*:* |
| mit | kerberos_5 | >= 1.0, <= 1.2.6 | cpe:2.3:a:mit:kerberos_5:*:*:*:*:*:*:*:* |
| debian | debian_linux | 3.0 | cpe:2.3:o:debian:debian_linux:3.0:*:*:*:*:*:*:* |