Buffer overflow in Skype for Windows 1.1.x.0 through 1.4.x.83 allows remote attackers to execute arbitrary code via (1) callto:// and (2) skype:// links, or (3) a non-standard VCARD, possibly due to an underlying error in the SysUtils.WideFmtStr Delphi routine.
Conclusion & alert: CVE-2005-3265 is rated High Risk (75/100): CVSS Critical severity, with high exploitation likelihood (EPSS 35.55%, 97th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +3.93% over the last day, indicating growing attacker interest. Mandatory action: 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.
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 | 2025-07-25 | 31.61% | 35.55% | +3.93% |
| 2 | 2025-03-30 | 29.17% | 31.61% | +2.44% |
| 3 | 2025-03-29 | — | 29.17% | — |
Full EPSS history (8 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.3 | 2.0 | HIGH |
|
8.6 | 10.0 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| skype_technologies | skype | 1.1.0.61 | cpe:2.3:a:skype_technologies:skype:1.1.0.61:*:*:*:*:*:*:* |
| skype_technologies | skype | 1.1.0.73 | cpe:2.3:a:skype_technologies:skype:1.1.0.73:*:*:*:*:*:*:* |
| skype_technologies | skype | 1.1.0.79 | cpe:2.3:a:skype_technologies:skype:1.1.0.79:*:*:*:*:*:*:* |
| skype_technologies | skype | 1.2.0.0 | cpe:2.3:a:skype_technologies:skype:1.2.0.0:*:*:*:*:*:*:* |
| skype_technologies | skype | 1.2.0.37 | cpe:2.3:a:skype_technologies:skype:1.2.0.37:*:*:*:*:*:*:* |
| skype_technologies | skype | 1.2.0.41 | cpe:2.3:a:skype_technologies:skype:1.2.0.41:*:*:*:*:*:*:* |
| skype_technologies | skype | 1.2.0.46 | cpe:2.3:a:skype_technologies:skype:1.2.0.46:*:*:*:*:*:*:* |
| skype_technologies | skype | 1.3.0.45 | cpe:2.3:a:skype_technologies:skype:1.3.0.45:*:*:*:*:*:*:* |
| skype_technologies | skype | 1.3.0.48 | cpe:2.3:a:skype_technologies:skype:1.3.0.48:*:*:*:*:*:*:* |
| skype_technologies | skype | 1.3.0.51 | cpe:2.3:a:skype_technologies:skype:1.3.0.51:*:*:*:*:*:*:* |
| skype_technologies | skype | 1.3.0.54 | cpe:2.3:a:skype_technologies:skype:1.3.0.54:*:*:*:*:*:*:* |
| skype_technologies | skype | 1.3.0.55 | cpe:2.3:a:skype_technologies:skype:1.3.0.55:*:*:*:*:*:*:* |
| skype_technologies | skype | 1.3.0.57 | cpe:2.3:a:skype_technologies:skype:1.3.0.57:*:*:*:*:*:*:* |
| skype_technologies | skype | 1.3.0.60 | cpe:2.3:a:skype_technologies:skype:1.3.0.60:*:*:*:*:*:*:* |
| skype_technologies | skype | 1.3.0.66 | cpe:2.3:a:skype_technologies:skype:1.3.0.66:*:*:*:*:*:*:* |
| skype_technologies | skype | 1.4.0.71 | cpe:2.3:a:skype_technologies:skype:1.4.0.71:*:*:*:*:*:*:* |
| skype_technologies | skype | 1.4.0.78 | cpe:2.3:a:skype_technologies:skype:1.4.0.78:*:*:*:*:*:*:* |
| skype_technologies | skype | 1.4.0.83 | cpe:2.3:a:skype_technologies:skype:1.4.0.83:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://secunia.com/advisories/17305/ | |
| http://skype.com/security/skype-sb-2005-02.html | Patch Vendor Advisory |
| http://www.kb.cert.org/vuls/id/668193 | US Government Resource |
| http://www.kb.cert.org/vuls/id/930345 | US Government Resource |
| http://www.pentest.co.uk/documents/ptl-2005-01.html | Patch Vendor Advisory |
| http://www.securityfocus.com/bid/15190 | |
| http://www.vupen.com/english/advisories/2005/2197 | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/22848 |