How severe is CVE-2007-4642?

CVE-2007-4642 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2007-4642 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 16% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-4642?

CVE-2007-4642 affects Doomsday. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2007-4642?

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

When was CVE-2007-4642 published?

CVE-2007-4642 was published on 2007-08-31 and last updated on 2026-06-16.

CVE-2007-4642

CVE-2007-4642 is a critical-severity vulnerability in Doomsday with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 16% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 16% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Doomsday
Published: 2007-08-31
Last modified: 2026-06-16

Description

Multiple buffer overflows in Doomsday (aka deng) 1.9.0-beta5.1 and earlier allow remote attackers to execute arbitrary code via a long chat (PKT_CHAT) message that is not properly handled by the (1) D_NetPlayerEvent function in d_net.c or the (2) Msg_Write function in net_msg.c, or (3) many commands that are not properly handled by the NetSv_ReadCommands function in d_netsv.c; or (4) cause a denial of service (daemon crash) via a chat (PKT_CHAT) message without a final '\0' character.

Frequently asked questions

What is CVE-2007-4642?: Multiple buffer overflows in Doomsday (aka deng) 1.9.0-beta5.1 and earlier allow remote attackers to execute arbitrary code via a long chat (PKT_CHAT) message that is not properly handled by the (1) D_NetPlayerEvent function in d_net.c or the (2) Msg_Write function in net_msg.c, or (3) many commands that are not properly handled by the NetSv_ReadCommands function in d_netsv.c; or (4) cause a denial of service (daemon crash) via a chat (PKT_CHAT) message without a final '\0' character.
How severe is CVE-2007-4642?: CVE-2007-4642 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2007-4642 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 16% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-4642?: CVE-2007-4642 affects Doomsday. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2007-4642?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2007-4642 published?: CVE-2007-4642 was published on 2007-08-31 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:doomsday:doomsday:*:*:*:*:*:*:*:*

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CVE-2007-4644 — High (CVSS 7.5): Format string vulnerability in the Cl_GetPackets function in cl_main.c in the client in Doomsday (aka deng)…
CVE-2006-1618 — High (CVSS 7.5): Format string vulnerability in the (1) Con_message and (2) conPrintf functions in con_main.c in Doomsday engine 1.8.6…
CVE-2007-4643 — Medium (CVSS 5.0): Integer underflow in Doomsday (aka deng) 1.9.0-beta5.1 and earlier allows remote attackers to cause a denial of service…

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