cve.bz

CVE-2026-39031

5.5 mediumEPSS 0.09%

Medium (5.5). EPSS 0.09% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

5.5 medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS
0.09% chance of exploitation in the next 30 days; higher than 0% of CVEs (scores of 2026-10-31)
CWE
CWE-321
Published
Modified
Record from
the NVD, synced

References

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