CVE-2026-40510

mediumpriority · track · 27EPSS 0.003 · 22 %ileDEEUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.29% (22nd) EPSS
CVSS 6.8 · medium
Is it mine?
15 products
Check your exposure
Who says so?
6 sources
cnnvd · enisa_euvd · ads_tec_psirt · cert_bund

EPSS · scored 2026-10-26

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.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

  • Fixedads_tec_psirt

    Update to firmware IRF1000 2.3.0, IRF3000 2.3.0 or later.

  • Fixedweidmueller_psirt

    Update to firmware IE-SR-4TX V2.3.0, IE-SR-4GT V2.3.0 or later.

  • Mitigationads_tec_psirt

    Exploitation requires physical access. Restrict physical access to the device and to its USB and smart-card interfaces, and do not connect untrusted PIV smart cards or CCID/USB devices.

  • Mitigationweidmueller_psirt

    Exploitation requires physical access. Restrict physical access to the device and to its USB and smart-card interfaces, and do not connect untrusted PIV smart cards or CCID/USB devices.

02

cvss

Technical severity, 0–10. One row per scoring source.

6.8
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 0.1–6.8

v3.16.8mediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 0.9 · impact 5.9
v3.13.8lowCVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:Lsecondary · disclosure@vulncheck.comexploitability 0.4 · impact 3.4
v3.13.8lowCVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:Lsecondary · Weidmüller PSIRT DE
v3.13.8lowCVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:Lsecondary · ads-tec PSIRT
v4.00.1lowCVSS:4.0/AV:P/AC:H/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/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:Xsecondary · CVSS-BT (t0sche)
v4.01lowCVSS:4.0/AV:P/AC:H/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/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:Xsecondary · disclosure@vulncheck.com
v4.01lowCVSS:4.0/AV:P/AC:H/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:Nsecondary · ENISA EU
03

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-121USCWE-121USCWE-121US
05

affected products (15)

Products and version ranges known to be affected.

06

advisories (3)

Vendor and ecosystem advisories describing this.

  • VDE-2026-076ads-tec Industrial IT: Multiple Vulnerabilities in ADS-TEC IRF Products2026-07-28csaf · ads_tec_psirtDE

    The ADS-TEC IRF1000 and IRF3000 products are affected by multiple vulnerabilities in firmware releases prior to 2.3.0: authorization, robustness and redirect flaws in the proprietary configuration interface and web UI, and multiple vulnerabilities in the bundled third-party components dnsmasq, OpenSC and OpenSSL. All are fixed in firmware 2.3.0.

  • VDE-2026-081Weidmueller: Security routers IE-SR-4TX and IE-SR-4GT are affected by multiple vulnerabilities2026-07-28csaf · weidmueller_psirtDE

    Weidmueller security routers IE-SR-4TX and IE-SR-4GT are affected by multiple vulnerabilities (CVE-2026-14167, CVE-2026-14168, CVE-2026-14169, CVE-2026-14171, CVE-2026-2291, CVE-2026-4893, CVE-2026-5172, CVE-2026-40510, CVE-2025-68160, CVE-2025-69418, CVE-2025-69419, CVE-2025-69420, CVE-2025-69421, CVE-2026-22795, CVE-2026-22796) in firmware releases prior to V2.3.0 authorization, robustness and redirect flaws in the proprietary configuration interface and web UI, and multiple vulnerabilities in the bundled third-party components dnsmasq, OpenSC and OpenSSL. All are fixed in firmware V2.3.0.

  • WID-SEC-W-2026-1755OpenSC: Mehrere Schwachstellen ermöglichen nicht spezifizierten AngriffDeutsch2026-05-31csaf · cert_bundDE

    Ein Angreifer mit physischem Zugriff kann mehrere Schwachstellen in OpenSC ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.

07

also known as (3)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdads_tec_psirtcert_bundnvdweidmueller_psirtNVDCVE.orgMITRE
published 2026-05-29modified 2026-07-21
09

references (10)

External citations — patches, advisories, analysis.

scry

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