CVE-2026-10275

OpenSC pkcs11-tool Key Generation pkcs11-tool.c test_kpgen_certwrite buffer overflow

CVSS 2.3 LOWEPSS 0.3%CWE-119 CWE-120

Vexday Risk Score

28Bajo

Decisión SSVC (CISA)

Attend

PoC disponible → seguir de cerca

CVSS 2.3EPSS 0.3%KEV nãoPoC públicaNuclei —Metasploit —Patch referenciado

Ciclo de vida

01 jun 2026Publicada en NVD

Recomendación: Planificar corrección próxima — ya existe PoC pública.

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: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

Productos afectados

n/a · OpenSC

PoCs públicas encontradas — 1

cve_referencepan.baidu.com/s/1nrZPKDz2eAcCpsaFiIRlrgno verificado

⚠ Recursos públicos, para evaluar la exposición de sistemas que controlas o estás autorizado a probar. Prueba solo con autorización.

Referencias

https://github.com/OpenSC/OpenSC/https://github.com/OpenSC/OpenSC/commit/814f745b3b6d100295f65f1935edd33d520d33ab https://github.com/OpenSC/OpenSC/issues/3682 https://github.com/OpenSC/OpenSC/pull/3684 https://pan.baidu.com/s/1nrZPKDz2eAcCpsaFiIRlrg https://vuldb.com/cve/CVE-2026-10275 https://vuldb.com/submit/825403 https://vuldb.com/vuln/367568 https://vuldb.com/vuln/367568/cti