What’s Vulnerable › Vulnerabilities

CVE-2021-20803

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-10-13 · updated 2026-06-17
• Weakness: CWE-863

Description

Operation restriction bypass in the management screen of Cybozu Remote Service 3.1.8 to 3.1.9 allows a remote authenticated attacker to alter the data of the management screen.

Affected products

• Cybozu, Inc. Cybozu Remote Service: 3.1.8, 3.1.9

References

• https://jvn.jp/en/jp/JVN52694228/index.html
• https://kb.cybozu.support/article/37421
• https://jvn.jp/en/jp/JVN52694228/index.html
• https://kb.cybozu.support/article/37421

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