[0day-rubbish] Microsip 2026 (ASD data-service agent) 2026 Eval (other builds with the same backup-runner path handling are likely affected) Pre-authentication RCE (attacker-controlled binary path, LocalSystem) (9.8)

[disclosure via Fulldisclosure <fulldisclosure () seclists org>]

0day Rubbish Research Team is publicly disclosing a vulnerability in Microsip 2026 (ASD data-service agent) 2026 Eval 
(other builds with the same backup-runner path handling are likely affected).

Type: Pre-authentication RCE (attacker-controlled binary path, LocalSystem) (CWE-426)
CVSS: 9.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H)
Impact: Unauthenticated remote code execution as LocalSystem on the ERP data-service host, compromising the business 
database and administrative systems.
Authentication: unauthenticated / pre-auth

Full technical analysis and a reproducible proof-of-concept:
  https://0day-rubbish.com/blog/microsip-asd-unc-binary-planting-rce

Project archive (ongoing disclosure series):
  https://github.com/Exploit-Garbage/0day-Rubbish

Vendor has been notified. CVE ID is pending.

--
0day Rubbish Research Team
disclosure () 0day-rubbish com
https://0day-rubbish.com
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