CVE-2007-4643

NONECVSS 0.0
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 2%CVSS: —Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
—
EG Score
0.0(none)
EPSS
80.0%
KEV
Not listed

Published

August 31, 2007

Last Modified

April 23, 2026

References (18)

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 4× in last 7d / 38× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-11 08:22 UTCEPSS rescore
  2. 2026-07-08 15:09 UTCEPSS rescore
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  1. 2026-06-21 01:56 UTCEPSS rescore
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  4. 2026-06-18 17:49 UTCEPSS rescore
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  28. 2026-05-31 22:28 UTCEPSS rescore
  29. 2026-05-31 22:28 UTCEPSS rescore
  30. 2026-05-31 01:07 UTCEG score recompute
  31. 2026-05-31 01:07 UTCGHSA enrichment
  32. 2026-05-31 00:13 UTCEPSS rescore
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  43. 2026-05-26 07:16 UTCEPSS rescore
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  45. 2026-05-24 16:42 UTCEPSS rescore
  46. 2026-05-22 21:15 UTCEPSS rescore
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  48. 2026-05-21 22:38 UTCEPSS rescore
  49. 2026-05-20 22:36 UTCEPSS rescore
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  51. 2026-05-20 11:20 UTCEPSS rescore
  52. 2026-05-20 11:20 UTCEPSS rescore
  53. 2026-05-18 21:29 UTCEPSS rescore
  54. 2026-05-18 21:29 UTCEPSS rescore

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Frequently asked(4)

What is CVE-2007-4643?
CVE-2007-4643 is a none vulnerability published on August 31, 2007. 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 PKTCHAT packet with a data length less than 3, which triggers an erroneous malloc, possibly related to the SvHandlePacket function in sv_main.c.
When was CVE-2007-4643 disclosed?
CVE-2007-4643 was first published in the National Vulnerability Database on August 31, 2007, with the most recent update on April 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2007-4643 actively exploited?
CVE-2007-4643 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 80.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2007-4643?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2007-4643, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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