What’s Vulnerable › Vulnerabilities

CVE-2021-34543

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-12-07 · updated 2026-06-17
• Weakness: CWE-306

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.

Affected products

• Bkw Solar-Log 500 Firmware: through 2.8.1; 2.8.2-build_50

References

• https://drive.google.com/file/d/1z1TaANlDyX4SOP2vjNzkPQI3nETL9kZM/view?usp=sharing
• https://www.exploit-db.com/exploits/49986
• https://www.solar-log.com/en/support/firmware/
• https://drive.google.com/file/d/1z1TaANlDyX4SOP2vjNzkPQI3nETL9kZM/view?usp=sharing
• https://www.exploit-db.com/exploits/49986
• https://www.solar-log.com/en/support/firmware/

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