{"id":"CVE-2021-34543","aliases":["EUVD-2021-21195","GHSA-fc22-jfw7-2qhg"],"status":"published","title":"The web administration server in Solar-Log 500 before 2.8.2 Build 52 does not require...","description":"The web administration server in Solar-Log 500 before 2.8.2 Build 52 does not require authentication, which allows remote attackers to gain administrative privileges by connecting to the server. As a result, the attacker can modify configuration files and change the system status. Fixed with 3.0.0-60 11.10.2013 for SL 200, 500, 1000 / not existing for SL 250, 300, 1200, 2000, SL 50 Gateway, SL Base.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.0303,"percentile":0.87657,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-306","CWE-862"],"published":"2021-12-07T20:39:05Z","modified":"2026-06-17T03:56:05Z","products":[{"vendor":"bkw","product":"solar-log_500_firmware"}],"references":[{"url":"https://drive.google.com/file/d/1z1TaANlDyX4SOP2vjNzkPQI3nETL9kZM/view?usp=sharing","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://www.solar-log.com/en/support/firmware/","tags":["x_refsource_MISC","x_transferred","Product","Release Notes","Vendor Advisory"]},{"url":"https://www.exploit-db.com/exploits/49986","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-34543"},{"url":"https://www.solar-log.com/en/support/firmware"},{"url":"https://github.com/advisories/GHSA-fc22-jfw7-2qhg"}],"sources":{"cve":[{"id":"CVE-2021-34543","description":"The web administration server in Solar-Log 500 before 2.8.2 Build 52 does not require authentication, which allows remote attackers to gain administrative privileges by connecting to the server. As a result, the attacker can modify configuration files and change the system status. Fixed with 3.0.0-60 11.10.2013 for SL 200, 500, 1000 / not existing for SL 250, 300, 1200, 2000, SL 50 Gateway, SL Base.","status":"published","published":"2021-12-07T20:39:05Z","modified":"2024-11-11T23:01:45.243Z","updated_at":"2026-11-02T14:33:11.59359Z"}],"euvd":[{"id":"EUVD-2021-21195","description":"The web administration server in Solar-Log 500 before 2.8.2 Build 52 does not require authentication, which allows remote attackers to gain administrative privileges by connecting to the server. As a result, the attacker can modify configuration files and change the system status. Fixed with 3.0.0-60 11.10.2013 for SL 200, 500, 1000 / not existing for SL 250, 300, 1200, 2000, SL 50 Gateway, SL Base.","status":"published","published":"2021-12-07T20:39:05Z","modified":"2024-11-11T23:01:45Z","updated_at":"2026-11-03T00:05:04.843383Z"}],"ghsa":[{"id":"GHSA-fc22-jfw7-2qhg","title":"The web administration server in Solar-Log 500 before 2.8.2 Build 52 does not require...","description":"The web administration server in Solar-Log 500 before 2.8.2 Build 52 does not require authentication, which allows remote attackers to gain administrative privileges by connecting to the server. As a result, the attacker can modify configuration files and change the system status.","status":"published","published":"2021-12-08T00:00:49Z","modified":"2024-11-12T00:31:39Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"cwes":["CWE-306","CWE-862"],"updated_at":"2026-11-02T14:58:46.999726Z"}],"nvd":[{"id":"CVE-2021-34543","description":"The web administration server in Solar-Log 500 before 2.8.2 Build 52 does not require authentication, which allows remote attackers to gain administrative privileges by connecting to the server. As a result, the attacker can modify configuration files and change the system status. Fixed with 3.0.0-60 11.10.2013 for SL 200, 500, 1000 / not existing for SL 250, 300, 1200, 2000, SL 50 Gateway, SL Base.","status":"published","published":"2021-12-07T21:15:08.177Z","modified":"2026-06-17T03:56:05.757Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:07:01.811115Z"}]}}