How severe is CVE-2008-2545?

CVE-2008-2545 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2008-2545 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-2545?

CVE-2008-2545 primarily affects Skype Technologies Skype. In total, 43 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2008-2545?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2008-2545 published?

CVE-2008-2545 was published on 2008-06-06 and last updated on 2026-06-16.

CVE-2008-2545

CVE-2008-2545 is a critical-severity vulnerability in Skype Technologies Skype with a CVSS 2.0 base score of 9.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Skype Technologies Skype
Published: 2008-06-06
Last modified: 2026-06-16

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.

Frequently asked questions

What is 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 a dangerous extension that uses a different case.
How severe is CVE-2008-2545?: CVE-2008-2545 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2008-2545 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-2545?: CVE-2008-2545 primarily affects Skype Technologies Skype. In total, 43 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2008-2545?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2008-2545 published?: CVE-2008-2545 was published on 2008-06-06 and last updated on 2026-06-16.

References

Affected products (43)

cpe:2.3:a:skype_technologies:skype:*:*:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.0.0.106:beta:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.0.0.123:beta:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.0.0.137:beta:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.0.0.154:beta:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.0.0.190:*:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.0.0.198:*:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.0.0.205:*:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.0.0.209:*:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.0.0.214:*:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.0.0.216:*:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.0.0.217:*:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.0.0.218:*:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.1.0.112:beta:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.1.0.134:beta:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.1.0.144:*:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.1.0.147:*:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.1.0.150:*:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.1.0.152:*:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.2.0.53:beta:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.2.0.63:beta:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.2.0.82:beta:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.2.0.115:beta:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.2.0.145:*:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.2.0.148:*:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.2.0.152:*:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.2.0.158:*:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.2.0.163:*:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.2.0.175:*:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.5.0.107:beta:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.5.0.158:beta:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.5.0.178:beta:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.5.0.202:*:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.5.0.214:*:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.5.0.229:*:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.5.0.234:*:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.5.0.239:*:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.6.0.127:beta:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.6.0.159:beta:*:*:*:*:*:*
cpe:2.3:a:skype_technologies:skype:3.6.0.216:*:*:*:*:*:*:*

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