Skip to content
Fencer Vulns
high 7.8

CVE-2007-5583 json

Cisco IP Phone 7940 with firmware P0S3-08-7-00 allows remote attackers to cause a denial of service ("486 Busy" responses or device reboot)…

published 2007-12-18 18 y ago modified 2026-06-16 4 mo ago also EUVD-2007-5558

cvss
7.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.0%
EPSS 6.0% chance of exploitation in 30 days, percentile 93%
public exploits
1
Exploit-DB

Summary

Cisco IP Phone 7940 with firmware P0S3-08-7-00 allows remote attackers to cause a denial of service ("486 Busy" responses or device reboot) via a sequence of SIP INVITE transactions in which the Request-URI lacks a user name, a different vulnerability than CVE-2007-4459.

Timeline

  1. First public exploit (EDB-4692)
  2. Published

Exploit prediction

5.99% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-4692 Cisco Phone 7940 - Remote Denial of Service dos, 2007-12-05
  • securityfocus.com http://www.securityfocus.com/bid/26711 referenced PoC, tagged "exploit" by a source, unverified
  • lists.grok.org.uk http://lists.grok.org.uk/pipermail/full-disclosure/2007-December/058837.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 7.8 AV:N/AC:L/Au:N/C:N/I:N/A:C

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.