Description (CNA)
Lansweeper lsrunase 2.0 and lsencrypt 2.0 use RC4 encryption with a hardcoded 142-byte static key array to encrypt credentials. An 8-character prefix is stored in cleartext alongside the ciphertext. This allows an attacker with local access to recover any encrypted password to plaintext using a single SHA-1 hash and RC4 decryption operation, with no brute force required.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| n/a / n/a | affected n/a |
CWE
No CWE identifiers supplied.
References
- https://usermode.net/cve/lansweeper_lsrunase2_lsencrypt2_cve.pdf
- https://github.com/user6400/cve-2026-39031-lansweeper-lsrunase2-lsencrypt2
ADP enrichment
No English description supplied.