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Fencer Vulns
high 8.8

CVE-2023-4249 in the critical feed json

Zavio IP Camera Stack-Based Buffer Overflow

published 2023-11-08 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-54120

cvss
8.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
12.9%
EPSS 12.9% chance of exploitation in 30 days, percentile 96%
public exploits
0
none known

Summary

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.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-23-304-03 updated cvss 8.8

Zavio IP Camera

  • Zavio B8220 M2.1.6.05 Zavio B8520 M2.1.6.05 Zavio CB3211 M2.1.6.05 Zavio CB3212 M2.1.6.05 Zavio CB5220 M2.1.6.05 Zavio CB6231 M2.1.6.05
    +5 more products
    Zavio CD321 M2.1.6.05 Zavio CF7201 M2.1.6.05 Zavio CF7300 M2.1.6.05 Zavio CF7500 M2.1.6.05 Zavio CF7501 M2.1.6.05
    affected: no fix planned

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
21 mo ago

Exploit prediction

12.94% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Zavio IP Camera CF7500
  • Zavio IP Camera CF7300
  • Zavio IP Camera CF7201
  • Zavio IP Camera CF7501
  • Zavio IP Camera CB3211
  • Zavio IP Camera CB3212
  • Zavio IP Camera CB5220
  • Zavio IP Camera CB6231
  • Zavio IP Camera B8520
  • Zavio IP Camera B8220
  • Zavio IP Camera CD321

Classification

Weakness
  • CWE-121 Stack-based Buffer Overflow
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.