Dashboard / CVE-2026-40510

CVE-2026-40510

LOW
INFO Priority: 0.00 BB Relevance: 27/100
Published: 2026-05-29 Modified: 2026-11-08 First seen: 2026-11-08 Status: active

Attack Surface

Low Complexity No Auth

CVSS Vector Breakdown

AV: Physical
AC: High
PR: None
UI: Passive
AT: None
VC: Low
VI: Low
VA: Low

Description

OpenSC before 0.27.0-rc1, fixed in commit 3f24f0b, contains a stack buffer overflow vulnerability in piv_process_history() in src/libopensc/card-piv.c that allows physically present attackers to trigger memory corruption by presenting a crafted PIV smart card or USB device returning a URL field longer than 118 bytes in the Key History Object ASN.1 response.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
OpenSC OpenSC 0 < 0.27.0-rc1
OpenSC OpenSC 0 < 3f24f0b48a481a8cf2e46059d8238a283ddc1c13

References & Advisories (3)

Bug Bounty Relevance

27 / 100
✓ No authentication
✓ Low complexity

CVSS Score

1.0 / 10.0 v4.0
CVSS:4.0/AV:P/AC:H/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

EPSS — Exploitation Probability

0.29%
Raw Score 0.002940
Percentile 22.2%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00294
2026-11-12
0.00294
2026-11-10
0.00294
2026-11-09
0.00294
2026-11-08
0.00294

Intelligence Sources

mitre ref →

External Links