How severe is CVE-2025-13763?

CVE-2025-13763 has a CVSS 3.x base score of 5.7, rated medium severity. It is exploitable over physical access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.

Is CVE-2025-13763 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-13763?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-13763 have an EU (EUVD) identifier?

Yes. CVE-2025-13763 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-209564.

When was CVE-2025-13763 published?

CVE-2025-13763 was published on 2026-04-23 and last updated on 2026-06-30.

CVE-2025-13763

CVE-2025-13763 is a medium-severity vulnerability with a CVSS 3.x base score of 5.7. 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-457.

Key facts

Severity: Medium (CVSS 3.x base score 5.7)
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-209564
Weakness: CWE-457
Published: 2026-04-23
Last modified: 2026-06-30

Description

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

Frequently asked questions

What is 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
How severe is CVE-2025-13763?: CVE-2025-13763 has a CVSS 3.x base score of 5.7, rated medium severity. It is exploitable over physical access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.
Is CVE-2025-13763 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-13763?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-13763 have an EU (EUVD) identifier?: Yes. CVE-2025-13763 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-209564.
When was CVE-2025-13763 published?: CVE-2025-13763 was published on 2026-04-23 and last updated on 2026-06-30.

References

Other CWE-457 vulnerabilities

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CVE-2026-14405 — Critical (CVSS 9.6): Uninitialized Use in V8 in Google Chrome prior to 150.0.7871.46 allowed a remote attacker to execute arbitrary code…
CVE-2026-13825 — High (CVSS 8.8): Uninitialized Use in Dawn in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to potentially exploit heap…
CVE-2025-5749 — High (CVSS 8.8): WOLFBOX Level 2 EV Charger BLE Encryption Keys Uninitialized Variable Authentication Bypass Vulnerability. This…

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