How severe is CVE-2006-3913?

CVE-2006-3913 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2006-3913 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-3913?

CVE-2006-3913 affects Freeciv. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2006-3913?

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-2006-3913 published?

CVE-2006-3913 was published on 2006-07-28 and last updated on 2026-06-16.

CVE-2006-3913

CVE-2006-3913 is a high-severity vulnerability in Freeciv with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 6% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Freeciv
Published: 2006-07-28
Last modified: 2026-06-16

Description

Buffer overflow in Freeciv 2.1.0-beta1 and earlier, and SVN 15 Jul 2006 and earlier, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a (1) negative chunk_length or a (2) large chunk->offset value in a PACKET_PLAYER_ATTRIBUTE_CHUNK packet in the generic_handle_player_attribute_chunk function in common/packets.c, and (3) a large packet->length value in the handle_unit_orders function in server/unithand.c.

Frequently asked questions

What is CVE-2006-3913?: Buffer overflow in Freeciv 2.1.0-beta1 and earlier, and SVN 15 Jul 2006 and earlier, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a (1) negative chunk_length or a (2) large chunk->offset value in a PACKET_PLAYER_ATTRIBUTE_CHUNK packet in the generic_handle_player_attribute_chunk function in common/packets.c, and (3) a large packet->length value in the handle_unit_orders function in server/unithand.c.
How severe is CVE-2006-3913?: CVE-2006-3913 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2006-3913 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-3913?: CVE-2006-3913 affects Freeciv. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2006-3913?: 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-2006-3913 published?: CVE-2006-3913 was published on 2006-07-28 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:freeciv:freeciv:2.1.0_beta1:*:*:*:*:*:*:*

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