CVE-2009-0366

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.

Published: 2009-03-12 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]

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.

Exploit prediction scoring system (EPSS) score for CVE-2009-0366

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)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-0366

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
8.6 2.9 [email protected]

Weakness enumeration for CVE-2009-0366

OS Trackers for CVE-2009-0366

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

Affected software / configurations for 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:*:*:*:*:*:*:*

References for CVE-2009-0366

cvelogic Threat Intelligence