{"dataType": "CVE_RECORD", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2026-39031", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2026-06-26T20:43:01.496Z", "dateReserved": "2026-04-06T00:00:00.000Z", "datePublished": "2026-06-26T00:00:00.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2026-06-26T20:43:01.496Z"}, "descriptions": [{"lang": "en", "value": "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": [{"vendor": "n/a", "product": "n/a", "versions": [{"version": "n/a", "status": "affected"}]}], "references": [{"url": "https://usermode.net/cve/lansweeper_lsrunase2_lsencrypt2_cve.pdf"}, {"url": "https://github.com/user6400/cve-2026-39031-lansweeper-lsrunase2-lsencrypt2"}], "problemTypes": [{"descriptions": [{"type": "text", "lang": "en", "description": "n/a"}]}]}}, "dataVersion": "5.2"}

{}

{}

{}

{"created": "2026-06-26T22:45:05.773723+00:00", "title": "Local Credential Disclosure via Hardcoded RC4 Key in Lansweeper lsrunase\u00a02.0 and lsencrypt\u00a02.0", "updated": "2026-06-26T22:45:05.773729+00:00", "vendors": [], "weaknesses": ["CWE-330", "CWE-327"]}