The multiplayer engine in Wesnoth 1.2.x before 1.2.7 and 1.3.x before 1.3.9 allows remote servers to cause a denial of service (crash) via a long message with multibyte characters that can produce an invalid UTF-8 string after it is truncated, which triggers an uncaught exception, involving the truncate_message function in server/server.cpp. NOTE: this issue affects both clients and servers.
Conclusion & alert: CVE-2007-3917 is rated Moderate Risk (61.6/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.91%). 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 | 2026-05-30 | 2.80% | 2.91% | +0.11% |
| 2 | 2025-11-05 | 2.46% | 2.80% | +0.34% |
| 3 | 2025-03-30 | — | 2.46% | — |
Full EPSS history (16 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.8 | 2.0 | HIGH |
|
10.0 | 6.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
ubuntu
|
low | CVE-2007-3917 low priority: Ubuntu including 1 source packages (wesnoth), 5 status rows across 5 suites (dapper, edgy, feisty, gutsy, upstream): released 5. | https://ubuntu.com/security/CVE-2007-3917 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| 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 | 1.3.1 | cpe:2.3:a:wesnoth:wesnoth:1.3.1:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.3.2 | cpe:2.3:a:wesnoth:wesnoth:1.3.2:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.3.3 | cpe:2.3:a:wesnoth:wesnoth:1.3.3:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.3.4 | cpe:2.3:a:wesnoth:wesnoth:1.3.4:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.3.5 | cpe:2.3:a:wesnoth:wesnoth:1.3.5:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.3.6 | cpe:2.3:a:wesnoth:wesnoth:1.3.6:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.3.7 | cpe:2.3:a:wesnoth:wesnoth:1.3.7:*:*:*:*:*:*:* |
| wesnoth | wesnoth | 1.3.8 | cpe:2.3:a:wesnoth:wesnoth:1.3.8:*:*:*:*:*:*:* |