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Vulnerability record · CVE-2007-4643 · published 31 August 2007

CVE-2007-4643: Doomsday memory buffer overflow vulnerability

Doomsday · Doomsday

Integer underflow in Doomsday (aka deng) 1.9.0-beta5.1 and earlier allows remote attackers to cause a denial of service (daemon crash) via a PKT_CHAT packet with a data length less than 3, which triggers an erroneous malloc, possibly related to the Sv_HandlePacket function in sv_main.c.

5.0 CVSS 2.0 Medium EPSS 2.2% · top 18.6% CWE-119 · Memory buffer overflow
5.0CVSS 2.0 base score
2.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
18References, 4 tagged exploit
16 Jun 2026Last modified by NVD

Description

Integer underflow in Doomsday (aka deng) 1.9.0-beta5.1 and earlier allows remote attackers to cause a denial of service (daemon crash) via a PKT_CHAT packet with a data length less than 3, which triggers an erroneous malloc, possibly related to the Sv_HandlePacket function in sv_main.c.

AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://aluigi.org/poc/dumsdei.zip Exploit
http://bugs.gentoo.org/show_bug.cgi?id=190835
http://secunia.com/advisories/26524 Vendor Advisory
http://secunia.com/advisories/28821
http://security.gentoo.org/glsa/glsa-200802-02.xml
http://securityreason.com/securityalert/3084
http://www.securityfocus.com/archive/1/478077/100/0/threaded
http://www.securityfocus.com/bid/25483 Exploit
https://exchange.xforce.ibmcloud.com/vulnerabilities/36338
http://aluigi.org/poc/dumsdei.zip Exploit
http://bugs.gentoo.org/show_bug.cgi?id=190835
http://secunia.com/advisories/26524 Vendor Advisory
http://secunia.com/advisories/28821
http://security.gentoo.org/glsa/glsa-200802-02.xml
http://securityreason.com/securityalert/3084
http://www.securityfocus.com/archive/1/478077/100/0/threaded
http://www.securityfocus.com/bid/25483 Exploit
https://exchange.xforce.ibmcloud.com/vulnerabilities/36338

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2007-4642Doomsday memory buffer overflow vulnerabilityMultiple 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…EPSS 16%7.5CVE-2007-4644Doomsday code injection vulnerabilityFormat string vulnerability in the Cl_GetPackets function in cl_main.c in the client in Doomsday (aka deng) 1.9.0-beta5.1 and earlier allows remote D…EPSS 3.6%7.5CVE-2006-1618Doomsday vulnerabilityFormat string vulnerability in the (1) Con_message and (2) conPrintf functions in con_main.c in Doomsday engine 1.8.6 allows remote attackers to exec…EPSS 13%9.5CVE-2026-88772Citrix netscaler application delivery controller memory buffer overflow vulnerabilityVulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 F…KEVEPSS 1.2%8.8CVE-2026-8452Citrix NetScaler ADC and Gateway memory buffer overflow causes DoSCVE-2026-8452 is a memory buffer overflow (CWE-119) in Citrix NetScaler ADC and NetScaler Gateway that leads to unpredictable or erroneous behavior a…KEVEPSS 1.0%analysed8.8CVE-2009-3459Adobe Reader and Acrobat heap buffer overflow via crafted PDFAdobe Reader and Acrobat 7.x before 7.1.4, 8.x before 8.1.7, and 9.x before 9.2 contain a heap-based buffer overflow (CWE-122) triggered by a crafted…KEVEPSS 87%analysed9.8CVE-2008-4250Microsoft Windows Server service RPC path canonicalization buffer overflowThe Server service in multiple Windows versions fails to properly handle path canonicalization, allowing a crafted RPC request to overflow a buffer a…KEVEPSS 99%analysed8.8CVE-2025-31277Apple WebKit memory corruption via malicious web contentApple WebKit fails to handle memory correctly when processing crafted web content, leading to memory corruption across Safari, iOS, iPadOS, macOS, tv…KEVEPSS 1.6%analysed

Source: NIST National Vulnerability Database (record CVE-2007-4643), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.