Oracle Internet Directory Server 2.1.1.x and 3.0.1 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via invalid encodings of BER OBJECT-IDENTIFIER values, as demonstrated by the PROTOS LDAPv3 test suite.
Conclusion & alert: CVE-2001-1321 is rated Moderate Risk (57.8/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.95%). Mandatory action: Review affected assets and schedule 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 | 2025-11-23 | 5.25% | 2.95% | -2.30% |
| 2 | 2025-07-22 | 3.41% | 5.25% | +1.84% |
| 3 | 2025-03-30 | — | 3.41% | — |
Full EPSS history (9 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 |
|---|---|---|---|
| oracle | internet_directory | 2.1.1 | cpe:2.3:a:oracle:internet_directory:2.1.1:*:*:*:*:*:*:* |
| oracle | internet_directory | 3.0.1 | cpe:2.3:a:oracle:internet_directory:3.0.1:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://ciac.llnl.gov/ciac/bulletins/l-116.shtml | Patch Vendor Advisory |
| http://www.cert.org/advisories/CA-2001-18.html | Third Party Advisory US Government Resource |
| http://www.ee.oulu.fi/research/ouspg/protos/testing/c06/ldapv3/ | |
| http://www.kb.cert.org/vuls/id/869184 | US Government Resource |
| http://www.kb.cert.org/vuls/id/JPLA-4WESNV | US Government Resource |