The uncompress_buffer function in src/server/simple_wml.cpp in Wesnoth before r33069 allows remote attackers to cause a denial of service via a large compressed WML document.
Conclusion & alert: CVE-2009-0366 is rated Moderate Risk (46.8/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.38%). 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 | 2025-05-28 | 2.18% | 2.38% | +0.19% |
| 2 | 2025-03-30 | 3.02% | 2.18% | -0.83% |
| 3 | 2025-03-29 | — | 3.02% | — |
Full EPSS history (6 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
redhat
|
— | — | https://access.redhat.com/security/cve/CVE-2009-0366 |
ubuntu
|
medium | CVE-2009-0366 medium priority: Ubuntu including 1 source packages (wesnoth), 7 status rows across 7 suites (dapper, gutsy, hardy, intrepid, jaunty, karmic, upstream): released 3, ignored 2, not-affected 2. | https://ubuntu.com/security/CVE-2009-0366 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| wesnoth | wesnoth | <= 1.5.11 | cpe:2.3:a:wesnoth:wesnoth:*:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.0 | cpe:2.3:a:wesnoth:wesnoth:1.0:rc:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.1 | cpe:2.3:a:wesnoth:wesnoth:1.1:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.1.1 | cpe:2.3:a:wesnoth:wesnoth:1.1.1:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.1.2 | cpe:2.3:a:wesnoth:wesnoth:1.1.2:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.1.3 | cpe:2.3:a:wesnoth:wesnoth:1.1.3:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.1.4 | cpe:2.3:a:wesnoth:wesnoth:1.1.4:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.1.5 | cpe:2.3:a:wesnoth:wesnoth:1.1.5:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.1.6 | cpe:2.3:a:wesnoth:wesnoth:1.1.6:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.1.7 | cpe:2.3:a:wesnoth:wesnoth:1.1.7:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.1.8 | cpe:2.3:a:wesnoth:wesnoth:1.1.8:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.1.9 | cpe:2.3:a:wesnoth:wesnoth:1.1.9:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.1.10 | cpe:2.3:a:wesnoth:wesnoth:1.1.10:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.1.11 | cpe:2.3:a:wesnoth:wesnoth:1.1.11:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.1.12 | cpe:2.3:a:wesnoth:wesnoth:1.1.12:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.1.13 | cpe:2.3:a:wesnoth:wesnoth:1.1.13:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.1.14 | cpe:2.3:a:wesnoth:wesnoth:1.1.14:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.2 | cpe:2.3:a:wesnoth:wesnoth:1.2:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.2.1 | cpe:2.3:a:wesnoth:wesnoth:1.2.1:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.2.2 | cpe:2.3:a:wesnoth:wesnoth:1.2.2:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.2.3 | cpe:2.3:a:wesnoth:wesnoth:1.2.3:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.2.4 | cpe:2.3:a:wesnoth:wesnoth:1.2.4:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.2.5 | cpe:2.3:a:wesnoth:wesnoth:1.2.5:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.2.6 | cpe:2.3:a:wesnoth:wesnoth:1.2.6:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.2.7 | cpe:2.3:a:wesnoth:wesnoth:1.2.7:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.2.8 | cpe:2.3:a:wesnoth:wesnoth:1.2.8:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.3.8 | cpe:2.3:a:wesnoth:wesnoth:1.3.8:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.3.9 | cpe:2.3:a:wesnoth:wesnoth:1.3.9:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.3.10 | cpe:2.3:a:wesnoth:wesnoth:1.3.10:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.3.11 | cpe:2.3:a:wesnoth:wesnoth:1.3.11:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.3.12 | cpe:2.3:a:wesnoth:wesnoth:1.3.12:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.3.13 | cpe:2.3:a:wesnoth:wesnoth:1.3.13:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.3.14 | cpe:2.3:a:wesnoth:wesnoth:1.3.14:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.3.15 | cpe:2.3:a:wesnoth:wesnoth:1.3.15:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.3.16 | cpe:2.3:a:wesnoth:wesnoth:1.3.16:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.3.17 | cpe:2.3:a:wesnoth:wesnoth:1.3.17:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.3.18 | cpe:2.3:a:wesnoth:wesnoth:1.3.18:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.3.19 | cpe:2.3:a:wesnoth:wesnoth:1.3.19:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.4 | cpe:2.3:a:wesnoth:wesnoth:1.4:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.4.1 | cpe:2.3:a:wesnoth:wesnoth:1.4.1:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.4.2 | cpe:2.3:a:wesnoth:wesnoth:1.4.2:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.4.3 | cpe:2.3:a:wesnoth:wesnoth:1.4.3:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.4.4 | cpe:2.3:a:wesnoth:wesnoth:1.4.4:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.4.5 | cpe:2.3:a:wesnoth:wesnoth:1.4.5:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.4.6 | cpe:2.3:a:wesnoth:wesnoth:1.4.6:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.4.7 | cpe:2.3:a:wesnoth:wesnoth:1.4.7:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.5.0 | cpe:2.3:a:wesnoth:wesnoth:1.5.0:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.5.1 | cpe:2.3:a:wesnoth:wesnoth:1.5.1:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.5.2 | cpe:2.3:a:wesnoth:wesnoth:1.5.2:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.5.3 | cpe:2.3:a:wesnoth:wesnoth:1.5.3:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.5.4 | cpe:2.3:a:wesnoth:wesnoth:1.5.4:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.5.5 | cpe:2.3:a:wesnoth:wesnoth:1.5.5:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.5.6 | cpe:2.3:a:wesnoth:wesnoth:1.5.6:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.5.7 | cpe:2.3:a:wesnoth:wesnoth:1.5.7:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.5.8 | cpe:2.3:a:wesnoth:wesnoth:1.5.8:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.5.9 | cpe:2.3:a:wesnoth:wesnoth:1.5.9:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.5.10 | cpe:2.3:a:wesnoth:wesnoth:1.5.10:*:*:*:*:*:*:* |