CVE-2021-20804
Cybozu Remote Service 3.1.8 to 3.1.9 allows a remote authenticated attacker to cause a denial of...
Cybozu Remote Service 3.1.8 to 3.1.9 allows a remote authenticated attacker to cause a denial of service (DoS) condition via unspecified vectors.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
Cybozu Remote Service 3.1.8 to 3.1.9 allows a remote authenticated attacker to cause a denial of service (DoS) condition via unspecified vectors.
- Record
CVE-2021-20804- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 4.0 Medium
AV:N/AC:L/Au:S/C:N/I:N/A:P - Updated
- 2026-11-02
CVE List No score
Cybozu Remote Service 3.1.8 to 3.1.9 allows a remote authenticated attacker to cause a denial of service (DoS) condition via unspecified vectors.
- Record
CVE-2021-20804- Updated
- 2026-11-02
EUVDEUVD-2021-8216 No score
Cybozu Remote Service 3.1.8 to 3.1.9 allows a remote authenticated attacker to cause a denial of service (DoS) condition via unspecified vectors.
- Record
EUVD-2021-8216- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-xqqp-wpjp-4w5q No score
Cybozu Remote Service 3.1.8 to 3.1.9 allows a remote authenticated attacker to cause a denial of...
Cybozu Remote Service 3.1.8 to 3.1.9 allows a remote authenticated attacker to cause a denial of service (DoS) condition via unspecified vectors.
- Record
GHSA-xqqp-wpjp-4w5q- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-20804 is a medium vulnerability (CVSS 6.5) in Cybozu, Inc. Cybozu Remote Service, published October 13, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.13%, the 66th percentile. No source names a fixed version.