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Vulnerability record · CVE-2023-4249 · published 8 November 2023

CVE-2023-4249: Zavio cf7500 firmware stack-based buffer overflow vulnerability

Zavio · Cf7500 Firmware

Zavio CF7500, CF7300, CF7201, CF7501, CB3211, CB3212, CB5220, CB6231, B8520, B8220, and CD321 IP Cameras with firmware version M2.1.6.05 has a command injection vulnerability in their implementation of their binaries and handling of network requests.

9.8 CVSS 3.1 Critical EPSS 13% · top 3.8% CWE-121 · Stack-based buffer overflowCWE-78 · OS command injection
9.8CVSS 3.1 base score
13%EPSS exploitation probability, 30 days
NoNot in CISA KEV
11Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Zavio CF7500, CF7300, CF7201, CF7501, CB3211, CB3212, CB5220, CB6231, B8520, B8220, and CD321 IP Cameras with firmware version M2.1.6.05 has a command injection vulnerability in their implementation of their binaries and handling of network requests.

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

Affected products

11 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2023-45225Zavio cf7500 firmware stack-based buffer overflow vulnerabilityZavio CF7500, CF7300, CF7201, CF7501, CB3211, CB3212, CB5220, CB6231, B8520, B8220, and CD321 IP Cameras  with firmware version M2.1.6.05 are vulnera…EPSS 1.3%9.8CVE-2023-43755Zavio cf7500 firmware stack-based buffer overflow vulnerabilityZavio CF7500, CF7300, CF7201, CF7501, CB3211, CB3212, CB5220, CB6231, B8520, B8220, and CD321 IP Cameras with firmware version M2.1.6.05 are vulnerab…EPSS 1.3%9.8CVE-2023-39435Zavio cf7500 firmware stack-based buffer overflow vulnerabilityZavio CF7500, CF7300, CF7201, CF7501, CB3211, CB3212, CB5220, CB6231, B8520, B8220, and CD321 IP Cameras with firmware version M2.1.6.05 are vulnerab…EPSS 1.2%9.8CVE-2023-3959Zavio IP cameras stack overflow in XML request handlingMultiple Zavio IP camera models running firmware M2.1.6.05 fail to validate buffer sizes when processing XML elements in incoming network requests, c…EPSS 49%analysed8.8CVE-2026-7273Zyxel gs1900-8 firmware stack-based buffer overflow vulnerabilityA stack-based buffer overflow vulnerability in the CGI program of Zyxel GS1900-48HPv2 firmware versions through 2.90(ABTQ.1)C0 could allow a LAN-base…KEVEPSS 2.5%8.1CVE-2021-27137DD-WRT UPnP M-SEARCH stack buffer overflowDD-WRT before 45724 contains an unsafe strcpy in the UPnP SSDP handling code (ssdp_msearch), reachable via an M-SEARCH request, that overflows a fixe…KEVEPSS 4.0%analysed9.3CVE-2025-53521F5 BIG-IP APM stack buffer overflow allows remote code executionA stack-based buffer overflow (CWE-121) exists in F5 BIG-IP Access Policy Manager when an APM access policy is configured on a virtual server. Specif…KEVEPSS 2.3%analysed8.8CVE-2008-0015Microsoft DirectShow Video ActiveX Control Stack Buffer OverflowA stack-based buffer overflow in the CComVariant::ReadFromStream function in the Active Template Library (ATL) is reachable through the MPEG2TuneRequ…KEVEPSS 77%analysed

Source: NIST National Vulnerability Database (record CVE-2023-4249), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.