Trending
CVE-2026-10275

CVE detail

CVE-2026-10275

A flaw has been found in OpenSC up to 0.26.1. This affects the function test_kpgen_certwrite of the file src/tools/pkcs11-tool.c of the component pkcs11-tool Key Generation Module. This manipulation causes buffer overflow. The attack is possible to be carried out remotely. The complexity of an attack is rather high. It is indicated that the exploitability is difficult. The exploit has been published and may be used. Patch name: 814f745b3b6d100295f65f1935edd33d520d33ab. It is recommended to apply a patch to fix this issue.

CVSS 1.3 · LowBuzz score 37.0

Buzz score

Why this CVE is surfacing

Buzz score total 37.0

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 24.0 · diversity 13.0 · KEV 0.0 · OTX 0.0 · PoC 0.0

Mention score

24.0

10 evidence mentions in the snapshot

Diversity score

13.0

4 sources across 2 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

10 source links · newest first

CVE-2026-10275 OpenSC pkcs11-tool Key Generation pkcs11-tool.c test_kpgen_certwrite buffer overflowMicrosoft MSRC
Information published.
vendormsrc.microsoft.comJun 19, 2026, 8:40 AM
https://vuldb.com/vuln/367568/ctivuldb.com
No excerpt available.
Exploitvuldb.comJun 1, 2026, 5:16 PM
https://vuldb.com/vuln/367568vuldb.com
No excerpt available.
Exploitvuldb.comJun 1, 2026, 5:16 PM
https://vuldb.com/submit/825403vuldb.com
No excerpt available.
Exploitvuldb.comJun 1, 2026, 5:16 PM
https://vuldb.com/cve/CVE-2026-10275vuldb.com
No excerpt available.
Exploitvuldb.comJun 1, 2026, 5:16 PM
https://pan.baidu.com/s/1nrZPKDz2eAcCpsaFiIRlrgpan.baidu.com
No excerpt available.
Exploitpan.baidu.comJun 1, 2026, 5:16 PM
https://github.com/OpenSC/OpenSC/pull/3684github.com
No excerpt available.
Exploitgithub.comJun 1, 2026, 5:16 PM
https://github.com/OpenSC/OpenSC/issues/3682github.com
No excerpt available.
Exploitgithub.comJun 1, 2026, 5:16 PM
https://github.com/OpenSC/OpenSC/commit/814f745b3b6d100295f65f1935edd33d520d33abgithub.com
No excerpt available.
Exploitgithub.comJun 1, 2026, 5:16 PM
https://github.com/OpenSC/OpenSC/github.com
No excerpt available.
Exploitgithub.comJun 1, 2026, 5:16 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

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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-2026-10275.

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

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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

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vuln:CVE-2026-10275Search this CVE on Shodan

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Metadata

Canonical fields

NVD status

Deferred

Published

Jun 1, 2026

Modified

Jul 22, 2026

Official record

Authoritative NVD record

CVSS vector

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CWE IDs

Vendor classifications

Unavailable

How this vector reads

CVSS 4.0 base metrics decoded below. This explanation does not recalculate or change the NVD score.

Attack Vector (AV): Network. The vulnerable system can be reached across network boundaries.
Attack Complexity (AC): High. Successful exploitation depends on conditions outside the attacker's control.
Attack Requirements (AT): None. No prerequisite deployment or execution condition is required.
Privileges Required (PR): None. The attacker needs no privileges on the vulnerable system.
User Interaction (UI): Passive. A targeted user must unknowingly interact with the vulnerable system.
Vulnerable System Confidentiality (VC): Low. There is a limited impact to this security property.
Vulnerable System Integrity (VI): Low. There is a limited impact to this security property.
Vulnerable System Availability (VA): Low. There is a limited impact to this security property.
Subsequent System Confidentiality (SC): None. There is no direct impact to this security property.
Subsequent System Integrity (SI): None. There is no direct impact to this security property.
Subsequent System Availability (SA): None. There is no direct impact to this security property.

Optional CVSS v4 metrics remain in the raw vector; only base metrics are expanded here.

Signals

Exploitation indicators

0 stored signals · no KEV · 0 OTX pulses