CVE-2023-39435
Zavio IP Camera Stack-Based Buffer Overflow
- Published
- Updated
- Reserved
- Assigned by
- icscert
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 stack-based overflows. During the process of updating certain settings sent from incoming network requests, the product does not sufficiently check or validate allocated buffer size. This may lead to remote code execution.
Timeline
ID reserved
By icscert
- 29 days later
· 29 days later
Published
- 15 months later
· 15 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| icscertCNA (assigner) | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 1.6% · top 24% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Weakness
Affected products
- affected version M2.1.6.05
- affected version M2.1.6.05
- affected version M2.1.6.05
- affected version M2.1.6.05
- affected version M2.1.6.05
- affected version M2.1.6.05
- affected version M2.1.6.05
- affected version M2.1.6.05
- affected version M2.1.6.05
- affected version M2.1.6.05
- affected version M2.1.6.05
What to do
Workaround: The affected products are end-of-life and have been identified to contain many insecurities. The vendor, Zavio, is no longer actively in business and therefore development for firmware fixes, mitigations, and updates are not available and will not become available. CISA recommends users discontinue use of the product.
References (1)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2023-39435)Record last updated .