CVE-2011-2074

Unspecified vulnerability in the client in Skype 5.x before 5.1.0.922 on Mac OS X allows remote authenticated users to execute arbitrary code or cause a denial of service (application crash) via a crafted message.

Published: 2011-05-10 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2011-2074 is rated High Risk (66.5/100): CVSS High severity, with high exploitation likelihood (EPSS 5.80%, 90th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2011-2074

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-11-09 4.84% 5.80% +0.96%
2 2025-03-30 5.79% 4.84% -0.95%
3 2025-03-29 — 5.79% —

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-2074

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.5 2.0 HIGH
AV:N/AC:M/Au:S/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 6.8 10.0 [email protected]

Weakness enumeration for CVE-2011-2074

NVD evaluator notes for CVE-2011-2074

Comment: Per: http://blogs.skype.com/security/2011/05/security_vulnerability_in_mac.html 'Please note, Skype's other clients, e.g. Windows and Linux, are not susceptible to this vulnerability.'

Affected software / configurations for CVE-2011-2074

Vendor Product Version Raw CPE
skype skype 5.0.0.105 cpe:2.3:a:skype:skype:5.0.0.105:*:*:*:*:*:*:*
skype skype 5.0.0.105 cpe:2.3:a:skype:skype:5.0.0.105:beta:*:*:*:*:*:*
skype skype 5.0.0.123 cpe:2.3:a:skype:skype:5.0.0.123:beta:*:*:*:*:*:*
skype skype 5.0.0.152 cpe:2.3:a:skype:skype:5.0.0.152:*:*:*:*:*:*:*
skype skype 5.0.0.156 cpe:2.3:a:skype:skype:5.0.0.156:*:*:*:*:*:*:*
skype skype 5.1.0.104 cpe:2.3:a:skype:skype:5.1.0.104:*:*:*:*:*:*:*
skype skype 5.1.0.112 cpe:2.3:a:skype:skype:5.1.0.112:*:*:*:*:*:*:*

References for CVE-2011-2074

cvelogic Threat Intelligence