Trending
CVE-2025-13763

CVE detail

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

CVSS 5.7 · MediumBuzz score 34.4

Buzz score

Why this CVE is surfacing

Buzz score total 34.4

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 17.9 · diversity 16.5 · KEV 0.0 · OTX 0.0 · PoC 0.0

Mention score

17.9

5 evidence mentions in the snapshot

Diversity score

16.5

4 sources across 3 categories

KEV score

0.0

No KEV entry observed

OTX score

0.0

0 OTX pulses

PoC score

0.0

0 repos · best confidence N/A

Best PoC traction

Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions: 0; within the 30d window
Peak daily: 0; highest bucket

Evidence

Source links by recency

Newest mentions first

5 source links · newest first

CVE-2025-13763 Libopensc: opensc: multiple uses of uninitialized variableMicrosoft MSRC
Information published.
vendormsrc.microsoft.comApr 29, 2026, 8:10 AM
https://github.com/OpenSC/OpenSC/wiki/CVE-2025-13763github.com
No excerpt available.
Exploitgithub.comApr 23, 2026, 1:16 PM
https://github.com/OpenSC/OpenSC/security/advisories/GHSA-2v44-fq35-98vvgithub.com
No excerpt available.
Exploitgithub.comApr 23, 2026, 1:16 PM
https://bugzilla.redhat.com/show_bug.cgi?id=2417581bugzilla.redhat.com
No excerpt available.
Exploitbugzilla.redhat.comApr 23, 2026, 1:16 PM
https://access.redhat.com/security/cve/CVE-2025-13763access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comApr 23, 2026, 1:16 PM

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

0 repository references · best confidence N/A · max 0 stars

No public PoC repositories have been matched yet.

Related records

Similar CVEs

6 related CVEs with shared weakness or product evidence

CVE-2026-55990
In NLnet Labs Unbound 1.7.0 up to and including 1.25.1, when the 'dnscrypt:' clause lists more 'dnscrypt-provider-cert:' files than there are matching 'dnscrypt-secret-key:' files…
CVSS 5.9 · Medium
2 mentions
CVE-2026-16417
Uninitialized Use in Skia in Google Chrome prior to 150.0.7871.182 allowed a remote attacker who had compromised the renderer process to leak cross-origin data via a crafted HTML…
CVSS 3.1 · Low
2 mentions
CVE-2025-56364
A use of uninitialized value vulnerability exists in the Matter SDK (connectedhomeip) before 1.4.0, where the `GetDestinationGroupId().Value()` method is called without first chec…
CVSS 7.5 · High
3 mentions
CVE-2026-15770
Uninitialized Use in V8 in Google Chrome prior to 150.0.7871.125 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page.…
CVSS 6.5 · Medium
2 mentions
CVE-2026-15766
Uninitialized Use in Skia in Google Chrome prior to 150.0.7871.125 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML pag…
CVSS 6.5 · Medium
2 mentions
CVE-2026-15132
Uninitialized Use in V8 in Google Chrome prior to 150.0.7871.115 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security s…
CVSS 8.8 · High
2 mentions

External lookup

Potential internet exposure

Potential exposure only — not proof of vulnerability.Shodan results indicate potentially internet-exposed products, not confirmed vulnerable systems. They do not confirm that any returned system is vulnerable to CVE-2025-13763.

Product-level CPE searches intentionally omit version fields and NVD version-range or configuration certainty. Verify the exact product version and configuration independently.

Sign-in required. Shodan requires you to sign in to run these filter searches.

Product CPE queries

Derived from this CVE's existing NVD CPE 2.3 records; the application, operating-system, or hardware part is retained.

Product query unavailableNo valid raw CPE 2.3 product record is available for this CVE, so no product-level Shodan query is shown.

Exact CVE query

Eligible paid Shodan plan required

Shodan's exact vuln: filter is separate from the product searches above and requires an eligible paid Shodan plan.

vuln:CVE-2025-13763Search this CVE on Shodan

These are outbound search links only. cvebuzz makes no Shodan API call, uses no Shodan API key, and does not display live result counts.

Metadata

Canonical fields

NVD status

Awaiting Analysis

Published

Apr 23, 2026

Modified

Jun 30, 2026

Official record

Authoritative NVD record

CVSS vector

CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H

CWE IDs

Vendor classifications

Unavailable

How this vector reads

CVSS 3.1 base metrics decoded below. This explanation does not recalculate or change the NVD score.

Attack Vector (AV): Physical. The attacker needs physical access to the vulnerable system.
Attack Complexity (AC): High. Successful exploitation depends on conditions outside the attacker's control.
Privileges Required (PR): None. The attacker needs no privileges on the vulnerable system.
User Interaction (UI): None. Exploitation does not require another user to act.
Scope (S): Unchanged. Impacts remain within the vulnerable security authority.
Confidentiality Impact (C): High. There is a total or serious impact to this security property.
Integrity Impact (I): None. There is no direct impact to this security property.
Availability Impact (A): High. There is a total or serious impact to this security property.

Signals

Exploitation indicators

0 stored signals · no KEV · 0 OTX pulses