How severe is CVE-2012-5645?

CVE-2012-5645 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2012-5645 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-5645?

CVE-2012-5645 primarily affects Freeciv. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-5645?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2012-5645 published?

CVE-2012-5645 was published on 2019-12-30 and last updated on 2026-06-16.

CVE-2012-5645

CVE-2012-5645 is a high-severity vulnerability in Freeciv with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-400.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 7.8
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Freeciv
Published: 2019-12-30
Last modified: 2026-06-16

Description

A denial of service flaw was found in the way the server component of Freeciv before 2.3.4 processed certain packets. A remote attacker could send a specially-crafted packet that, when processed would lead to memory exhaustion or excessive CPU consumption.

Frequently asked questions

What is CVE-2012-5645?: A denial of service flaw was found in the way the server component of Freeciv before 2.3.4 processed certain packets. A remote attacker could send a specially-crafted packet that, when processed would lead to memory exhaustion or excessive CPU consumption.
How severe is CVE-2012-5645?: CVE-2012-5645 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2012-5645 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-5645?: CVE-2012-5645 primarily affects Freeciv. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-5645?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2012-5645 published?: CVE-2012-5645 was published on 2019-12-30 and last updated on 2026-06-16.

References

Affected products (4)

cpe:2.3:a:freeciv:freeciv:*:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:16:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:17:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:18:*:*:*:*:*:*:*

More vulnerabilities in Freeciv

CVE-2010-2445 — Critical (CVSS 10.0): freeciv 2.2 before 2.2.1 and 2.3 before 2.3.0 allows attackers to read arbitrary files or execute arbitrary commands…
CVE-2022-39047 — High (CVSS 8.8): Freeciv before 2.6.7 and before 3.0.3 is prone to a buffer overflow vulnerability in the Modpack Installer utility's…
CVE-2012-6083 — High (CVSS 7.5): Freeciv before 2.3.3 allows remote attackers to cause a denial of service via a crafted packet.
CVE-2006-3913 — High (CVSS 7.5): Buffer overflow in Freeciv 2.1.0-beta1 and earlier, and SVN 15 Jul 2006 and earlier, allows remote attackers to cause a…
CVE-2006-0047 — Medium (CVSS 5.0): packets.c in Freeciv 2.0 before 2.0.8 allows remote attackers to cause a denial of service (server crash) via crafted…

All CVEs affecting Freeciv →

Other CWE-400 (Uncontrolled Resource Consumption) vulnerabilities

CVE-2026-46775 — Critical (CVSS 9.9): Vulnerability in Oracle REST Data Services (component: Core). Supported versions that are affected are 24.2.0-26.1.0.…
CVE-2025-61303 — Critical (CVSS 9.8): Hatching Triage Sandbox Windows 10 build 2004 (2025-08-14) and Windows 10 LTSC 2021(2025-08-14) contains a…
CVE-2025-43193 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.6, macOS Sonoma 14.7.7,…
CVE-2025-24269 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.4. An app may be able to…
CVE-2025-24264 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in Safari 18.4, iOS 18.4 and iPadOS 18.4,…
CVE-2025-24260 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.4, macOS Sonoma 14.7.5,…

Browse all CWE-400 (Uncontrolled Resource Consumption) vulnerabilities →