MEDIUM
CVE-2015-8489
CWE-20Published: February 17, 2016· Updated: Jun 17, 2026
6.5
CVSS v3.1
Official Description
customapp in Cybozu Office 9.9.0 through 10.3.0 allows remote authenticated users to cause a denial of service (excessive database locking) via a crafted CSV file, a different vulnerability than CVE-2016-1153.
Technical Analysis
CVE-2015-8489 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.
A successful exploit results in availability disruption (denial of service), with a CVSS base score of 6.5.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Vendors & Products
cybozu1 product(s)
office
Source: NVD CPE · 8 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 (6)
→
http://jvn.jp/en/jp/JVN20246313/index.htmlVendor Advisory
→
http://jvndb.jvn.jp/jvndb/JVNDB-2016-000020Vendor Advisory
→
https://cs.cybozu.co.jp/2015/006073.htmlVendor Advisory
→
http://jvn.jp/en/jp/JVN20246313/index.htmlVendor Advisory
→
http://jvndb.jvn.jp/jvndb/JVNDB-2016-000020Vendor Advisory
→
https://cs.cybozu.co.jp/2015/006073.htmlVendor Advisory
Quick Facts
CVE IDCVE-2015-8489
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-20
CISA KEVNo
Affected1 vendor(s)
PublishedFeb 17, 2016
Related CVEs (CWE-20)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2015-8489 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.