SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2008-2545

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…

HIGH 9.3EPSS 4.23%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (4.23%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 2.0
9.3 HIGHAV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS
4.23% probability · 91th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-20
Affected
skype technologies/skype
Source
cve@mitre.org
EPSS trend
0%3%5%26 October 2026: 4.23%26 October 202626 October 2026

EPSS 4.2% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.