CVE-2021-20801

6.5 mediumEPSS 1.1%

Medium (6.5) in cybozu remote service manager. EPSS 1.1% chance of exploitation in the next 30 days.

Cybozu Remote Service 3.1.8 to 3.1.9 allows a remote authenticated attacker to conduct XML External Entity (XXE) attacks and obtain the information stored in the product via unspecified vectors. This issue occurs only when using Mozilla Firefox.

Severity

CVSS 3.1

6.5 medium

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS: 1.1% chance of exploitation in the next 30 days; higher than 64% of CVEs (scores of 2026-10-31)
CWE: CWE-611
Published: 2021-10-13
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

cybozu:remote_service_manager

References

https://jvn.jp/en/jp/JVN52694228/index.html
https://kb.cybozu.support/article/37423
https://jvn.jp/en/jp/JVN52694228/index.html
https://kb.cybozu.support/article/37423

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