CVE-2023-43755

high-risk
Published 2023-11-08

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. During the processing and parsing of certain fields in XML elements from incoming network requests, the product does not sufficiently check or validate allocated buffer size. This may lead to remote code execution.

Do I need to act?

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0.79% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (11)

Cf7500 Firmware
Cf7300 Firmware
Cf7201 Firmware
Cf7501 Firmware
Cb3211 Firmware
Cb3212 Firmware
Cb5220 Firmware
Cb6231 Firmware
B8520 Firmware
B8220 Firmware
Cd321 Firmware

Affected Vendors

Zavio

References (2)

Third Party Advisory https://www.cisa.gov/news-events/ics-advisories/icsa-23-304-03
Third Party Advisory https://www.cisa.gov/news-events/ics-advisories/icsa-23-304-03
51
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 3/34 · Minimal
Exposure 16/34 · Moderate