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CVE-2026-75136— UpSignOn < 7.19.0 Biometric Key Exposure via Windows PasswordVault

Quick assessment

Affected
Septeo IT Solutions UpSignOn
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Windows 版本的 UpSignOn 在 7.19.0 之前版本中存在不安全的凭据存储漏洞，允许本地攻击者在无需触发任何身份验证提示的情况下，通过 Windows PasswordVault API 检索存储的生物识别解锁密钥。攻击者可以在同一 Windows 会话内的标准本地进程中访问该生物识别密钥，从而解密受保护的保险库文件，并以明文形式导出整个密码管理器的内容。

CVSS 6.1 · Medium EPSS 0.11% · P1

Possible ATT&CK Techniques 1 AI

T1552.006 · Group Policy Preferences

Affected Version Matrix 1

VendorProduct Version RangeStatus
Septeo IT Solutions UpSignOn < 7.19.0 affected
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I. Basic Information for CVE-2026-75136

Vulnerability Information
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Vulnerability Title
UpSignOn < 7.19.0 Biometric Key Exposure via Windows PasswordVault
Source: CVE Program / CVE List V5
Vulnerability Description
UpSignOn for Windows before 7.19.0 contains an insecure credential storage vulnerability that allows local attackers to retrieve the biometric unlock key stored in the Windows PasswordVault API without triggering any authentication prompt. Attackers can access the stored biometric key from a standard local process within the same Windows session to decrypt the protected vault files and export the entire password manager contents in cleartext.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
不充分的凭证保护机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Septeo IT Solutions UpSignOn 0 ~ 7.19.0 -

II. Public POCs for CVE-2026-75136

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III. Intelligence Information for CVE-2026-75136

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Vendor Advisories for CVE-2026-75136 (1)

Vendor Pages for CVE-2026-75136 (1)

Same Patch Batch · Septeo IT Solutions · 2026-09-02 · 3 CVEs total

CVE-2026-75137 6.1 MEDIUM UpSignOn < 7.19.0 Sensitive Data Exposure in Process Memory after Lock
CVE-2026-75135 6.1 MEDIUM UpSignOn < 7.19.0 Sensitive Key Retention in Memory

IV. Related Vulnerabilities

Same product: UpSignOn
Same vendor: Septeo IT Solutions
Same weakness: CWE-522

V. Comments for CVE-2026-75136

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