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CVE-2016-4909

18
FAUCET Score

CVE-2016-4909 describes a Cross-Site Request Forgery (CSRF) vulnerability affecting Cybozu Garoon versions 3.0.0 through 4.2.2. This vulnerability allows a remote attacker to force a logged-in user to log out through unspecified vectors. With a CVSS score of 4.3 (Medium), it has a network attack vector, low attack complexity, and a low impact on availability, with no impact on confidentiality or integrity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
3.0.0CPE matchmatch criteria
cpe:2.3:a:cybozu:garoon:3.0.0:*:*:*:*:*:*:*
3.0.1CPE matchmatch criteria
cpe:2.3:a:cybozu:garoon:3.0.1:*:*:*:*:*:*:*
3.0.2CPE matchmatch criteria
cpe:2.3:a:cybozu:garoon:3.0.2:*:*:*:*:*:*:*
3.0.3CPE matchmatch criteria
cpe:2.3:a:cybozu:garoon:3.0.3:*:*:*:*:*:*:*
3.1.0CPE matchmatch criteria
cpe:2.3:a:cybozu:garoon:3.1.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

4.3MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
2.8
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.26%
Probability of exploitation in next 30 days
EPSS Percentile
66.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0126 is in the 79th percentile among its peer group of 26,219 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

jvn.jp / en/jp/JVN15222211/index.html
Third Party AdvisoryVDB Entry
support.cybozu.com / ja-jp/article/9459
Vendor Advisory
securityfocus.com / bid/94973
Third Party AdvisoryVDB Entry
securityfocus.com / bid/97911
Third Party AdvisoryVDB Entry