CVE-2008-2545

Severity: critical (CVSS 9.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2008-06-06 · updated 2026-06-16
Weakness: CWE-20

Description

Skype 3.6.0.248, and other versions before 3.8.0.139, uses a case-sensitive comparison when checking for dangerous extensions, which allows user-assisted remote attackers to bypass warning dialogs and possibly execute arbitrary code via a file: URI with a dangerous extension that uses a different case.

Affected products

Skype Technologies Skype: through 3.8.0.115; 3.0.0.106-beta, 3.0.0.123-beta, 3.0.0.137-beta, 3.0.0.154-beta, 3.0.0.190, 3.0.0.198 (+36)

References

http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=711
http://secunia.com/advisories/30547
http://www.securityfocus.com/bid/29553
http://www.securitytracker.com/id?1020201
http://www.skype.com/security/skype-sb-2008-003.html
http://www.vupen.com/english/advisories/2008/1749/references
https://exchange.xforce.ibmcloud.com/vulnerabilities/43044
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=711
http://secunia.com/advisories/30547
http://www.securityfocus.com/bid/29553
http://www.securitytracker.com/id?1020201
http://www.skype.com/security/skype-sb-2008-003.html

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