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CVE-2011-2074

25
FAUCET Score

CVE-2011-2074 describes an unspecified vulnerability in Skype 5.x before version 5.1.0.922 on Mac OS X. This flaw allows remote authenticated users to execute arbitrary code or trigger a denial of service (application crash) through a specially crafted message. With a CVSS score of 8.5, this vulnerability is considered highly severe, indicating a network-based attack with medium complexity that could lead to complete compromise of confidentiality, integrity, and availability. While the EPSS score is low, suggesting limited real-world exploitation, there is no public exploit intelligence available, nor is it listed in CISA's KEV catalog. Community discussion and media coverage for this CVE are minimal, which is typical for the vast majority of reported vulnerabilities.

Impacted Technologies

VendorProductVersion(s)CPE
5.0.0.105CPE matchmatch criteria
cpe:2.3:a:skype:skype:5.0.0.105:*:*:*:*:*:*:*
5.0.0.105CPE matchmatch criteria
cpe:2.3:a:skype:skype:5.0.0.105:beta:*:*:*:*:*:*
5.0.0.123CPE matchmatch criteria
cpe:2.3:a:skype:skype:5.0.0.123:beta:*:*:*:*:*:*
5.0.0.152CPE matchmatch criteria
cpe:2.3:a:skype:skype:5.0.0.152:*:*:*:*:*:*:*
5.0.0.156CPE matchmatch criteria
cpe:2.3:a:skype:skype:5.0.0.156:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

8.5HIGH

AV:N/AC:M/Au:S/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
SINGLE
Exploitability Score
6.8
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.88%
Probability of exploitation in next 30 days
EPSS Percentile
85.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0288 is in the 82nd percentile among its peer group of 1,160 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

blogs.skype.com / security/2011/05/security_vulnerability_in_mac.html
Patch
isc.sans.edu / diary.html
secunia.com / advisories/44522
Vendor Advisory
purehacking.com / blogs/gordon-maddern/skype-0day-vulnerabilitiy-discovered-by-pure-hacking
securityfocus.com / bid/47747
theregister.co.uk / 2011/05/06/skype_for_mac_critical_vulnerability
vupen.com / english/advisories/2011/1192
Vendor Advisory