CVE-2018-8065
An issue was discovered in the web server in Flexense SyncBreeze Enterprise 10.6.24. There is a user mode write access violation on the…
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
An issue was discovered in the web server in Flexense SyncBreeze Enterprise 10.6.24. There is a user mode write access violation on the syncbrs.exe memory region that can be triggered by rapidly sending a variety of HTTP requests with long HTTP header values or long URIs.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list a Metasploit module and an Exploit-DB entry for it.
Metasploit modules1 module
- Flexense HTTP Server Denial Of Service (Metasploit module) (opens in a new tab)
auxiliary/dos/http/flexense_http_server_dosRank normaldisclosed 9 Mar 2018
Exploit-DB1 entry
- Flexense HTTP Server 10.6.24 - Buffer Overflow (DoS) (Metasploit) (Exploit-DB entry) (opens in a new tab)
EDB-ID 51493remote, multiplepublished 31 May 2023Not verified
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By mitre
- 1 day later
· 1 day later
Published
- 6 years later
· 6 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | High7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 75.9% · top 0.5% of all CVEs (9 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
n/a
- affected n/a
References (3)
- https://github.com/rapid7/metasploit-framework/pull/9701 (opens in a new tab)x_transferred
- https://github.com/EgeBalci/Sync_Breeze_Enterprise_10_6_24_-DOS (opens in a new tab)x_transferred
- http://packetstormsecurity.com/files/172676/Flexense-HTTP-Server-10.6.24-Buffer-Overflow-Denial-Of-Service.html (opens in a new tab)x_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2018-19747 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2018-8065)Record last updated .