CVE-2023-40706
CVE-2023-40706 is a high-severity vulnerability in Opto22 Snap Pac S1 Firmware with a CVSS 3.x base score of 8.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-307.
Key facts
- Severity: High (CVSS 3.x base score 8.6)
- EPSS exploit prediction: 1% (41st percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-307
- Affected product: Opto22 Snap Pac S1 Firmware
- Published:
- Last modified:
Description
There is no limit on the number of login attempts in the web server for the SNAP PAC S1 Firmware version R10.3b. This could allow for a brute-force attack on the built-in web server login.
Frequently asked questions
- What is CVE-2023-40706?
- There is no limit on the number of login attempts in the web server for the SNAP PAC S1 Firmware version R10.3b. This could allow for a brute-force attack on the built-in web server login.
- How severe is CVE-2023-40706?
- CVE-2023-40706 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
- Is CVE-2023-40706 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-40706?
- CVE-2023-40706 affects Opto22 Snap Pac S1 Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2023-40706?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2023-40706 published?
- CVE-2023-40706 was published on 2023-08-24 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:opto22:snap_pac_s1_firmware:r10.3b:*:*:*:*:*:*:*
More vulnerabilities in Opto22 Snap Pac S1 Firmware
- CVE-2023-40707 — High (CVSS 8.6): There are no requirements for setting a complex password in the built-in web server of the SNAP PAC S1 Firmware version…
- CVE-2023-40710 — Medium (CVSS 6.8): An adversary could cause a continuous restart loop to the entire device by sending a large quantity of HTTP GET…
- CVE-2023-40709 — Medium (CVSS 6.8): An adversary could crash the entire device by sending a large quantity of ICMP requests if the controller has the…
- CVE-2023-40708 — Medium (CVSS 5.8): The File Transfer Protocol (FTP) port is open by default in the SNAP PAC S1 Firmware version R10.3b. This could allow…
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