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CVE-2026-18642— Remote Code Execution via Insecure Deserialization in TÜBİTAK BİLGEM's eta-otp-lock

Quick assessment

Affected
TUBITAK BILGEM Software Technologies Research Institute eta-otp-lock
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.

TÜBİTAK BİLGEM eta-otp-lock是土耳其TÜBİTAK BİLGEM政府部门的一款身份认证与权限管理产品。 TÜBİTAK BİLGEM eta-otp-lock 1.0.4之前版本存在反序列化注入漏洞，该漏洞源于对不可信数据进行反序列化，可能导致对象注入。

CVSS 7.8 · High EPSS 0.37% · P29

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
TUBITAK BILGEM Software Technologies Research Institute eta-otp-lock < 1.0.4 affected
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I. Basic Information for CVE-2026-18642

Vulnerability Information
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Vulnerability Title
Remote Code Execution via Insecure Deserialization in TÜBİTAK BİLGEM's eta-otp-lock
Source: CVE Program / CVE List V5
Vulnerability Description
Deserialization of untrusted data vulnerability in TUBITAK BILGEM Software Technologies Research Institute eta-otp-lock allows Object Injection. This issue affects eta-otp-lock: before 1.0.4.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5
Vulnerability Title
TÜBİTAK BİLGEM eta-otp-lock 反序列化注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TÜBİTAK BİLGEM eta-otp-lock是土耳其TÜBİTAK BİLGEM政府部门的一款身份认证与权限管理产品。 TÜBİTAK BİLGEM eta-otp-lock 1.0.4之前版本存在反序列化注入漏洞，该漏洞源于对不可信数据进行反序列化，可能导致对象注入。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
TUBITAK BILGEM Software Technologies Research Institute eta-otp-lock 0 ~ 1.0.4 -

II. Public POCs for CVE-2026-18642

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-18642

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Vendor Advisories for CVE-2026-18642 (1)

IV. Related Vulnerabilities

Same product: eta-otp-lock
Same vendor: TUBITAK BILGEM Software Technologies Research Institute
Same weakness: CWE-502

V. Comments for CVE-2026-18642

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