MEDIUM
CVE-2021-20773
NVD-CWE-noinfoPublished: August 18, 2021· Updated: Jun 17, 2026
4.3
CVSS v3.1
Official Description
There is a vulnerability in Workflow of Cybozu Garoon 4.0.0 to 5.5.0, which may allow a remote authenticated attacker to delete the route information Workflow without the appropriate privilege.
Technical Analysis
CVE-2021-20773 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Affected Vendors & Products
cybozu1 product(s)
garoon
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (4)
→
https://cs.cybozu.co.jp/2021/007206.htmlVendor Advisory
→
https://jvn.jp/en/jp/JVN54794245/index.htmlThird Party Advisory
→
https://cs.cybozu.co.jp/2021/007206.htmlVendor Advisory
→
https://jvn.jp/en/jp/JVN54794245/index.htmlThird Party Advisory
Quick Facts
CVE IDCVE-2021-20773
CVSS Score4.3 / 10
SeverityMEDIUM
WeaknessNVD-CWE-noinfo
CISA KEVNo
Affected1 vendor(s)
PublishedAug 18, 2021
Related CVEs (NVD-CWE-noinfo)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2021-20773 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.