HIGH
CVE-2023-40707
CWE-521Published: August 24, 2023· Updated: Jun 17, 2026
7.5
CVSS v3.1
Official Description
There are no requirements for setting a complex password in the built-in web server of the SNAP PAC S1 Firmware version R10.3b, which could allow for a successful brute force attack if users don't set up complex credentials.
Technical Analysis
CVE-2023-40707 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 7.5.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Affected Vendors & Products
opto222 product(s)
snap pac s1 firmwaresnap pac s1
Source: NVD CPE · 2 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 (2)
→
https://www.cisa.gov/news-events/ics-advisories/icsa-23-236-02Third Party Advisory · US Government Resource
→
https://www.cisa.gov/news-events/ics-advisories/icsa-23-236-02Third Party Advisory · US Government Resource
Quick Facts
CVE IDCVE-2023-40707
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-521
CISA KEVNo
Affected1 vendor(s)
PublishedAug 24, 2023
Related CVEs (CWE-521)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-40707 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.