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CVE-2026-81855— Wärtsilä FOS-Onboard Use of Hard-coded Cryptographic Key

Quick assessment

Affected
Wärtsilä FOS-Onboard
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.

瓦锡兰 FOS-Onboard 的机器人测试框架组件中存在一个硬编码的加密客户端身份验证密钥漏洞。

CVSS 9.1 · Critical
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I. Basic Information for CVE-2026-81855

Vulnerability Information
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Vulnerability Title
Wärtsilä FOS-Onboard Use of Hard-coded Cryptographic Key
Source: CVE Program / CVE List V5
Vulnerability Description
A hardcoded cryptographic client authentication key vulnerability exists in the robot testing framework component of Wärtsilä FOS-Onboard.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用硬编码的密码学密钥
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Wärtsilä FOS-Onboard 5.07.0923.01 -

II. Public POCs for CVE-2026-81855

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-81855

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Vendor Advisories for CVE-2026-81855 (2)

Vendor Pages for CVE-2026-81855 (1)

IV. Related Vulnerabilities

Same product: FOS-Onboard
Same vendor: Wärtsilä
Same weakness: CWE-321

V. Comments for CVE-2026-81855

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