Buffer overflows in iPlanet Directory Server 4.1.4 and earlier (LDAP) allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code, as demonstrated by the PROTOS LDAPv3 test suite.
Conclusion & alert: CVE-2001-1307 is rated Moderate Risk (59.8/100): CVSS High severity, with high exploitation likelihood (EPSS 5.28%, 91th 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 | 7.47% | 5.28% | -2.19% |
| 2 | 2025-03-30 | 7.93% | 7.47% | -0.47% |
| 3 | 2025-03-29 | — | 7.93% | — |
Full EPSS history (7 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| sun | iplanet_directory_server | <= 4.1.4 | cpe:2.3:a:sun:iplanet_directory_server:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| ftp://patches.sgi.com/support/free/security/advisories/20011102-01-I | Vendor Advisory |
| http://www.cert.org/advisories/CA-2001-18.html | Patch Third Party Advisory US Government Resource |
| http://www.ee.oulu.fi/research/ouspg/protos/testing/c06/ldapv3/ | |
| http://www.kb.cert.org/vuls/id/276944 | US Government Resource |
| http://www.kb.cert.org/vuls/id/JPLA-4WESMM | US Government Resource |
| http://www.securityfocus.com/bid/3038 | Vendor Advisory |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/6893 |