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CVE-2007-4429

15
FAUCET Score

CVE-2007-4429 describes an unspecified vulnerability in Skype that allows remote attackers to cause a denial of service, specifically a server hang. This issue was reportedly exploited by sending long URIs, though the vendor clarified it was distinct from broader sign-on problems experienced at the time. With a CVSS score of 5.0, it has a network attack vector, low complexity, and impacts availability. There is no public exploit code, Metasploit modules, or significant community discussion, and it is not listed on the KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:a:skype_technologies:skype:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.20%
Probability of exploitation in next 30 days
EPSS Percentile
80.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0220 is in the 70th percentile among its peer group of 23,723 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

blogs.csoonline.com / the_skype_mystery_why_blame_the_august_windows_updates
en.securitylab.ru / poc/301420.php
Exploit
en.securitylab.ru / poc/extra/301419.php
heartbeat.skype.com / 2007/08/what_happened_on_august_16.html
heartbeat.skype.com / 2007/08/where_we_are_at_1100_gmt.html
securityreason.com / securityalert/3032
securityfocus.com / archive/1/476942/100/0/threaded
securityfocus.com / archive/1/477156/100/0/threaded
securityfocus.com / archive/1/477178/100/0/threaded
securityfocus.com / archive/1/477240/100/0/threaded
securitylab.ru / news/301422.php