CVE-2026-10275

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.29% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 22.0% of scored records. A rank, not a probability.

NVD base score

1.3 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD 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

NVD analysis status

Deferred. NVD last modified this record on 2026-07-22.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-06-01 16:45Z5 MO AGO

Last updated

2026-06-01 19:31Z5 MO AGO

Reserved

2026-05-31

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Low (CVSS 2.3)

CNA 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

Weaknesses

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
• CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')Base

Data version

5.2

Document digest

aa3a411ed8e2ceb566e1a7f05cc9cf4db5f4894c397c14da5f7f3f2395fea586

• vuldb.comVDB-367568 | OpenSC pkcs11-tool Key Generation pkcs11-tool.c test_kpgen_certwrite buffer overflowhttps://vuldb.com/vuln/367568vdb-entrytechnical-description
• vuldb.comVDB-367568 | CTI Indicators (IOB, IOC, IOA)https://vuldb.com/vuln/367568/ctisignaturepermissions-required
• vuldb.comCVE-2026-10275 | CVE Analysis and Reporthttps://vuldb.com/cve/CVE-2026-10275third-party-advisory
• vuldb.comSubmit #825403 | OpenSC OpenSC 0.26.1 and earlier Buffer Overflowhttps://vuldb.com/submit/825403third-party-advisory
• github.comhttps://github.com/OpenSC/OpenSC/issues/3682issue-tracking
• github.comhttps://github.com/OpenSC/OpenSC/pull/3684issue-trackingpatch
• pan.baidu.comhttps://pan.baidu.com/s/1nrZPKDz2eAcCpsaFiIRlrgexploit
• github.comhttps://github.com/OpenSC/OpenSC/commit/814f745b3b6d100295f65f1935edd33d520d33abpatch
• github.comhttps://github.com/OpenSC/OpenSC/product