CVE-2025-13763 — Information Disclosure
CVE-2025-13763 — Multiple uses of uninitialized variables were found in libopensc that may lead to information disclosure or application crash. An attack requires a crafted USB device or smart card that would present the system with specially crafted responses to the APDUs
What This Means For You
- If your environment is affected by this vulnerability type, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2025-13763 updates and patches.
Related ATT&CK Techniques
🛡️ Detection Rules
3 rules · 6 SIEM formats3 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.
CVE-2025-13763 - Uninitialized Variable Use in libopensc via Crafted USB/Smart Card APDU
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2025-13763 | vulnerability | CVE-2025-13763 |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | April 23, 2026 at 16:16 UTC |
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