Auth bypass in Kantar Media Wm2
CVE-2023-53964
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…
Vulnerability class: Broken Authentication
EPSS: 0.009 (54.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Kantar Media Wm2 — versions 1.11
- Sound4 Big_voice2
- Sound4 Big_voice2_firmware — versions 1.30
- Sound4 Big_voice4
- Sound4 Big_voice4_firmware — versions 1.2
- Sound4 First — versions 2.0, 1.0
- Sound4 First_firmware — versions 2.15, 1.69
- Sound4 Impact — versions 2.0, 1.0
- Sound4 Impact_eco
- Sound4 Impact_eco_firmware — versions 1.16
Weakness classification (CWE)
References
- disclosure@vulncheck.com (Exploit, VDB Entry, Third Party Advisory, exploit)
- disclosure@vulncheck.com (Product, product)
- disclosure@vulncheck.com (Exploit, Third Party Advisory, third-party-advisory)
- disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2023-53964?
- CVE-2023-53964 is a critical-severity vulnerability in Kantar Media Wm2, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2025-12-22.
- How severe is CVE-2023-53964?
- Critical severity. CVSS v3 base score is 9.8 out of 10.