cache.c in ircd-ratbox before 2.2.9 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a HELP command.
Conclusion & alert: CVE-2010-0300 is rated Moderate Risk (44.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.89%). 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 | 2025-03-30 | 1.70% | 0.89% | -0.81% |
| 2 | 2025-03-29 | 0.89% | 1.70% | +0.81% |
| 3 | 2025-03-17 | — | 0.89% | — |
Full EPSS history (7 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
low | CVE-2010-0300 low priority: Debian including 1 source packages (ircd-hybrid), 4 status rows across 4 suites (bookworm, bullseye, sid, trixie): resolved 4. | https://security-tracker.debian.org/tracker/CVE-2010-0300 |
redhat
|
critical | — | https://access.redhat.com/security/cve/CVE-2010-0300 |
ubuntu
|
medium | CVE-2010-0300 medium priority: Ubuntu including 1 source packages (ircd-ratbox), 23 status rows across 23 suites (artful, bionic, dapper, hardy, intrepid, jaunty, karmic, lucid, maverick, natty, oneiric, precise, quantal, raring, saucy, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): ignored 15, DNE 7, released 1. | https://ubuntu.com/security/CVE-2010-0300 |
: Per: http://cwe.mitre.org/data/definitions/476.html 'CWE-476: NULL Pointer Dereference'
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| ircd-ratbox | ircd-ratbox | <= 2.2.8 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:*:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 1.0 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.0:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 1.1 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.1:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 1.1.1 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.1.1:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 1.1.2 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.1.2:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 1.2.1 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.2.1:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 1.2.2 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.2.2:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 1.2.3 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.2.3:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 1.3 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.3:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 1.3.1 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.3.1:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 1.3.2 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.3.2:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 1.4 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.4:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 1.4 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.4:rc1:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 1.4 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.4:rc2:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 1.4.1 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.4.1:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 1.4.2 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.4.2:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 1.5 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.5:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 1.5.1 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.5.1:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 1.5.2 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.5.2:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 1.5.3 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.5.3:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 2.0.0 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.0.0:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 2.0.1 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.0.1:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 2.0.2 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.0.2:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 2.0.3 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.0.3:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 2.0.4 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.0.4:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 2.0.5 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.0.5:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 2.0.6 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.0.6:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 2.0.7 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.0.7:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 2.0.8 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.0.8:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 2.0.9 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.0.9:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 2.0.10 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.0.10:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 2.0.11 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.0.11:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 2.1.0 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.1.0:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 2.1.0 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.1.0:beta1:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 2.1.0 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.1.0:beta2:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 2.1.1 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.1.1:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 2.1.2 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.1.2:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 2.1.3 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.1.3:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 2.1.4 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.1.4:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 2.1.5 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.1.5:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 2.1.6 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.1.6:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 2.1.7 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.1.7:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 2.1.8 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.1.8:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 2.2.0 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.2.0:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 2.2.0 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.2.0:rc1:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 2.2.0 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.2.0:rc2:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 2.2.0 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.2.0:rc3:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 2.2.1 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.2.1:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 2.2.2 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.2.2:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 2.2.3 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.2.3:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 2.2.4 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.2.4:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 2.2.5 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.2.5:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 2.2.6 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.2.6:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 2.2.7 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.2.7:*:*:*:*:*:*:* |
| ircd-ratbox | ircd-ratbox | 2.2.7.1 | cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.2.7.1:*:*:*:*:*:*:* |