🛡️ CVE-2023-3959
🔴 CVSS 9.8 — Critical ✅ No Known Exploit CWE-121 NVD
9.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Zavio CF7500, CF7300, CF7201, CF7501, CB3211, CB3212, CB5220, CB6231, B8520, B8220, and CD321 IP Cameras with firmware version M2.1.6.05 are vulnerable to multiple instances of stack-based overflows. While processing XML elements from incoming network requests, the product does not sufficiently check or validate allocated buffer size. This may lead to remote code execution.

Details

Severity CRITICAL
CVSS Score 9.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-121
Public Exploit ✅ No
Source NVD
Published 2023-11-08
Updated 2026-06-08
Modified 2024-11-21
Fix URL N/A

Affected Packages

Software From version Fixed in
b8220-firmware
b8520-firmware
cb3211-firmware
cb3212-firmware
cb5220-firmware
cb6231-firmware
cd321-firmware
cf7201-firmware
cf7300-firmware
cf7500-firmware
cf7501-firmware

References

Third Party Advisory, US Government Resource https://www.cisa.gov/news-events/ics-advisories/icsa-23-304-03
Third Party Advisory, US Government Resource https://www.cisa.gov/news-events/ics-advisories/icsa-23-304-03

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