How severe is CVE-2026-40066?

CVE-2026-40066 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-40066 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-40066?

CVE-2026-40066 primarily affects Anviz Cx7 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-40066?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-40066 have an EU (EUVD) identifier?

Yes. CVE-2026-40066 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-23494.

When was CVE-2026-40066 published?

CVE-2026-40066 was published on 2026-04-17 and last updated on 2026-06-17.

CVE-2026-40066

CVE-2026-40066 is a high-severity vulnerability in Anviz Cx7 Firmware with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-494.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-23494
Weakness: CWE-494
Affected product: Anviz Cx7 Firmware
Published: 2026-04-17
Last modified: 2026-06-17

Description

Anviz CX2 Lite and CX7 are vulnerable to unverified update packages that can be uploaded. The device unpacks and executes a script resulting in unauthenticated remote code execution.

Frequently asked questions

What is CVE-2026-40066?: Anviz CX2 Lite and CX7 are vulnerable to unverified update packages that can be uploaded. The device unpacks and executes a script resulting in unauthenticated remote code execution.
How severe is CVE-2026-40066?: CVE-2026-40066 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-40066 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-40066?: CVE-2026-40066 primarily affects Anviz Cx7 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-40066?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-40066 have an EU (EUVD) identifier?: Yes. CVE-2026-40066 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-23494.
When was CVE-2026-40066 published?: CVE-2026-40066 was published on 2026-04-17 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:o:anviz:cx7_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:anviz:cx2_lite_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Anviz Cx7 Firmware

CVE-2026-35546 — Critical (CVSS 9.8): Anviz CX2 Lite and CX7 are vulnerable to unauthenticated firmware uploads. This causes crafted archives to be…
CVE-2026-32324 — High (CVSS 7.7): Anviz CX7 Firmware is vulnerable because the application embeds reusable certificate/key material, enabling…
CVE-2026-40461 — High (CVSS 7.5): Anviz CX2 Lite and CX7 are vulnerable to unauthenticated POST requests that modify debug settings (e.g., enabling…
CVE-2026-33569 — Medium (CVSS 6.5): Anviz CX2 Lite and CX7 administrative sessions occur over HTTP, enabling on‑path attackers to sniff credentials and…
CVE-2026-35061 — Medium (CVSS 5.3): Anviz CX7 Firmware is vulnerable to the most recently captured test photo that can be retrieved without…
CVE-2026-33093 — Medium (CVSS 5.3): Anviz CX7 Firmware is vulnerable to an unauthenticated POST to the device that captures a photo with the front facing…

All CVEs affecting Anviz Cx7 Firmware →

Other CWE-494 vulnerabilities

CVE-2020-1595 — Critical (CVSS 9.9): <p>A remote code execution vulnerability exists in Microsoft SharePoint where APIs aren't properly protected from…
CVE-2020-1210 — Critical (CVSS 9.9): <p>A remote code execution vulnerability exists in Microsoft SharePoint when the software fails to check the source…
CVE-2026-42248 — Critical (CVSS 9.8): Ollama for Windows does not perform integrity or authenticity verification of downloaded update executables. Unlike…
CVE-2026-34841 — Critical (CVSS 9.8): Bruno is an open source IDE for exploring and testing APIs. Prior to 3.2.1, Bruno was affected by a supply chain attack…
CVE-2026-3000 — Critical (CVSS 9.8): IDExpert Windows Logon Agent developed by Changing has a Remote Code Execution vulnerability, allowing unauthenticated…
CVE-2026-2999 — Critical (CVSS 9.8): IDExpert Windows Logon Agent developed by Changing has a Remote Code Execution vulnerability, allowing unauthenticated…

Browse all CWE-494 vulnerabilities →