CVE-2023-53964: SOUND4 Impact/Pulse/First · Missing Authentication
Affects SOUND4 Impact/Pulse/FirstSource CVE Database V5
Not known to be exploited · CVSS 8.8 High.
Data as of 25 Oct 2026, 19:02 UTC
- EPSS
- 0.9% chance of exploitation in 30 days – higher than 61% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 22 Dec 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| SOUND4 Ltd. Impact/Pulse/First | Affected
| Fixed in– |
AI-suggested
1. Immediately restrict network access to the /usr/cgi-bin/restorefactory.cgi endpoint by implementing firewall rules or network segmentation to limit exposure only to trusted administrators. 2. Monitor network traffic for unusual POST requests targeting this CGI endpoint, using intrusion detection systems or custom logging to detect potential exploitation attempts. 3. Coordinate with SOUND4 Ltd. for official patches or firmware updates addressing this vulnerability and apply them as soon as they become available. 4. If patches are not yet available, consider disabling or removing the vulnerable CGI script if operationally feasible. 5. Enforce strong access controls on management interfaces, including VPNs or secure tunnels, to reduce the risk of unauthorized remote access. 6. Conduct regular audits of device configurations post-incident to detect unauthorized resets or changes. 7. Educate IT and security teams about this vulnerability to ensure rapid response and incident handling. 8. Implement network anomaly detection focused on device management traffic to identify exploitation attempts early.
Description
SOUND4 IMPACT/FIRST/PULSE/Eco v2.x contains an unauthenticated vulnerability in the /usr/cgi-bin/restorefactory.cgi endpoint that allows remote attackers to reset device configuration. Attackers can send a POST request to the endpoint with specific data to trigger a factory reset and bypass authentication, gaining full system control.
References
- exploit-db.com/exploits/51174 (opens in a new tab)
- web.archive.org/web/20221207074555/https://www.sound4.com/ (opens in a new tab)
- zeroscience.mk/en/vulnerabilities/ZSL-2022-5742.php (opens in a new tab)
- vulncheck.com/advisories/sound-impactfirstpulseeco-x-unauthenticated-factory-reset-vulnerability (opens in a new tab)