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CVE-2026-75969 – Unauthenticated Firmware Upload / Device Takeover – PTZOptics Cameras and Upgrade T

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Summary

CVE-2026-75969 is a missing-authentication vulnerability (CWE-306) affecting the firmware update mechanism used by PTZOptics pan-tilt-zoom (PTZ) cameras and the associated Firmware Upgrade Tool. The flaw allows an unauthenticated network attacker to push modified firmware to an affected device without supplying administrator credentials, enabling full device compromise. The issue carries a CVSS v4.0 base score of 9.1 (Critical).

Technical details

  • Root cause: The firmware update module on affected PTZOptics cameras and the companion Firmware Upgrade Tool does not require authentication before accepting and installing a firmware image.
  • Trigger conditions: An attacker with network access to the camera’s management interface can submit a crafted/modified firmware update request; no valid administrator session or credentials are required.
  • Attack vector: Network — the vulnerability can be exploited remotely over the network path that reaches the device’s firmware update service, with low attack complexity, no privileges required, and no user interaction.
  • Impact: Successful exploitation allows installation of attacker-modified firmware, giving an attacker persistent control over the camera. This can result in loss of confidentiality, integrity, and availability of the device (e.g., surveillance manipulation, pivoting into the network, or bricking the device).

Affected software

  • PTZOptics Move 4K: 12X (< 0.0.98), 20X (< 0.1.33), 30X (< 2.1.17)
  • PTZOptics Move SE: 12X (< 9.1.66), 20X (< 9.1.44), 30X (< 9.1.46)
  • PTZOptics Link 4K: 12X (< 0.0.99), 20X (< 0.1.37), 30X (< 2.1.18)
  • PTZOptics Studio 4K and Studio SE: 12X/20X (all versions < 8.3.32)
  • PTZOptics Generation 2 and legacy models: PT12X/PT20X/PT30X variants (SDI/NDI/USB), PTVL-ZCAM, PTEPTZ-ZCAM-G2 — all versions affected
  • PTZOptics Studio Pro — all versions
  • PTZOptics Firmware Upgrade Tool — all versions

Severity

CVSS v4.0 Base Score: 9.1 (Critical)
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U/R:U/V:C/RE:L/U:Red
(Note: no CVSS v3.1 vector has been published for this CVE at the time of writing; the vendor-assigned score above is CVSS v4.0.)

Mitigation and recommended actions

  • Immediate: Upgrade to the fixed firmware versions where available: Move 4K 12X ≥ 0.0.98, 20X ≥ 0.1.33, 30X ≥ 2.1.17; Move SE 12X ≥ 9.1.66, 20X ≥ 9.1.44, 30X ≥ 9.1.46; Link 4K 12X ≥ 0.0.99, 20X ≥ 0.1.37, 30X ≥ 2.1.18; Studio 4K/SE 12X/20X ≥ 8.3.32. Also update the Firmware Upgrade Tool to the latest available release.
  • If no patch is available for your model (e.g., legacy Generation 2, PTVL-ZCAM, PTEPTZ-ZCAM-G2, Studio Pro): do not expose the camera’s management/firmware update interface to untrusted or public networks; restrict access to a dedicated, trusted management VLAN; disable or firewall network services used for firmware updates until a fix is released; monitor devices for unexpected firmware changes or reboots.
  • Track the vendor’s ongoing security advisory page and PSIRT channel for newly published fixed firmware versions for models not yet patched.

References

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