CVE-2023-43755 — CRITICAL (9.8)

Vulnerability 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. 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.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Zavio	Cf7500 Firmware	m2.1.6.05
Zavio	Cf7500	-
Zavio	Cf7300 Firmware	m2.1.6.05
Zavio	Cf7300	-
Zavio	Cf7201 Firmware	m2.1.6.05
Zavio	Cf7201	-
Zavio	Cf7501 Firmware	m2.1.6.05
Zavio	Cf7501	-
Zavio	Cb3211 Firmware	m2.1.6.05
Zavio	Cb3211	-
Zavio	Cb3212 Firmware	m2.1.6.05
Zavio	Cb3212	-
Zavio	Cb5220 Firmware	m2.1.6.05
Zavio	Cb5220	-
Zavio	Cb6231 Firmware	m2.1.6.05
Zavio	Cb6231	-
Zavio	B8520 Firmware	m2.1.6.05
Zavio	B8520	-
Zavio	B8220 Firmware	m2.1.6.05
Zavio	B8220	-

Related Weaknesses (CWE)

CWE-121 CWE-787

References

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

FAQ

What is CVE-2023-43755?

CVE-2023-43755 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 overf...

How severe is CVE-2023-43755?

CVE-2023-43755 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2023-43755?

Check the references section above for vendor advisories and patch information. Affected products include: Zavio Cf7500 Firmware, Zavio Cf7500, Zavio Cf7300 Firmware, Zavio Cf7300, Zavio Cf7201 Firmware.