CVE-2022-39047

Freeciv before 2.6.7 and before 3.0.3 is prone to a buffer overflow vulnerability in the Modpack Installer utility's handling of the modpack URL.

Published: 2022-08-31 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-39047 is rated Moderate Risk (55.6/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.98%). 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-2022-39047

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 0.68% 0.98% +0.30%
2 2026-02-24 0.60% 0.68% +0.08%
3 2025-09-01 — 0.60% —

Full EPSS history (12 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-39047

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 [email protected]

Weakness enumeration for CVE-2022-39047

OS Trackers for CVE-2022-39047

vendor priority summary link
debian not yet assigned CVE-2022-39047 not yet assigned priority: Debian including 1 source packages (freeciv), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 4, open 1. https://security-tracker.debian.org/tracker/CVE-2022-39047
ubuntu medium CVE-2022-39047 medium priority: Ubuntu including 1 source packages (freeciv), 13 status rows across 13 suites (bionic, focal, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): ignored 6, needs-triage 6, released 1. https://ubuntu.com/security/CVE-2022-39047

Affected software / configurations for CVE-2022-39047

Vendor Product Version Raw CPE
freeciv freeciv < 2.6.7 cpe:2.3:a:freeciv:freeciv:*:*:*:*:*:*:*:*
freeciv freeciv >= 3.0.0, < 3.0.3 cpe:2.3:a:freeciv:freeciv:*:*:*:*:*:*:*:*

References for CVE-2022-39047

URL Tags
http://www.openwall.com/lists/oss-security/2022/08/31/1 Mailing List Third Party Advisory
https://bugs.debian.org/1017579 Mailing List Third Party Advisory
https://osdn.net/projects/freeciv/ticket/45299 Patch Third Party Advisory
https://www.openwall.com/lists/oss-security/2022/08/05/1 Mailing List Third Party Advisory
cvelogic Threat Intelligence