389 Directory Server 1.2.11.15 (aka Red Hat Directory Server before 8.2.11-14) allows remote authenticated users to cause a denial of service (crash) via multiple @ characters in a GER attribute list in a search request.
Conclusion & alert: CVE-2013-4485 is rated Moderate Risk (44.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.99%). Core evidence: EPSS rose +1.57% over the last day, indicating growing attacker interest. 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 | 2026-06-15 | 0.42% | 1.99% | +1.57% |
| 2 | 2025-03-30 | 1.22% | 0.42% | -0.80% |
| 3 | 2025-03-29 | — | 1.22% | — |
Full EPSS history (8 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.0 | 2.0 | MEDIUM |
|
8.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2013-4485 not yet assigned priority: Debian including 1 source packages (389-ds-base), 4 status rows across 4 suites (bookworm, bullseye, sid, trixie): resolved 4. | https://security-tracker.debian.org/tracker/CVE-2013-4485 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2013-4485 |
ubuntu
|
medium | CVE-2013-4485 medium priority: Ubuntu including 1 source packages (389-ds-base), 13 status rows across 13 suites (lucid, precise, quantal, raring, saucy, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): not-affected 6, ignored 4, DNE 2, released 1. | https://ubuntu.com/security/CVE-2013-4485 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| redhat | enterprise_linux | 6.0 | cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* |
| fedoraproject | 389_directory_server | 1.2.11.15 | cpe:2.3:a:fedoraproject:389_directory_server:1.2.11.15:*:*:*:*:*:*:* |
| redhat | directory_server | <= 8.2 | cpe:2.3:a:redhat:directory_server:*:*:*:*:*:*:*:* |
| redhat | directory_server | 7.1 | cpe:2.3:a:redhat:directory_server:7.1:*:*:*:*:*:*:* |
| redhat | directory_server | 8.0 | cpe:2.3:a:redhat:directory_server:8.0:*:*:*:*:*:*:* |
| redhat | directory_server | 8.1 | cpe:2.3:a:redhat:directory_server:8.1:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://rhn.redhat.com/errata/RHSA-2013-1752.html | Vendor Advisory |
| http://rhn.redhat.com/errata/RHSA-2013-1753.html | Vendor Advisory |
| http://secunia.com/advisories/55765 | Vendor Advisory |