How severe is CVE-2025-34066?

CVE-2025-34066 has a CVSS 4.0 base score of 8.3, rated high severity.

Is CVE-2025-34066 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-34066?

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-2025-34066 have an EU (EUVD) identifier?

Yes. CVE-2025-34066 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-19640.

When was CVE-2025-34066 published?

CVE-2025-34066 was published on 2025-07-01 and last updated on 2026-06-17.

CVE-2025-34066

CVE-2025-34066 is a high-severity vulnerability with a CVSS 4.0 base score of 8.3. 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-295.

Key facts

Severity: High (CVSS 4.0 base score 8.3)
EPSS exploit prediction: 0% (19th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-19640
Weakness: CWE-295
Published: 2025-07-01
Last modified: 2026-06-17

Description

An improper certificate validation vulnerability exists in AVTECH IP cameras, DVRs, and NVRs due to the use of wget with --no-check-certificate in scripts like SyncCloudAccount.sh and SyncPermit.sh. This exposes HTTPS communications to man-in-the-middle (MITM) attacks.

Frequently asked questions

What is CVE-2025-34066?: An improper certificate validation vulnerability exists in AVTECH IP cameras, DVRs, and NVRs due to the use of wget with --no-check-certificate in scripts like SyncCloudAccount.sh and SyncPermit.sh. This exposes HTTPS communications to man-in-the-middle (MITM) attacks.
How severe is CVE-2025-34066?: CVE-2025-34066 has a CVSS 4.0 base score of 8.3, rated high severity.
Is CVE-2025-34066 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-34066?: 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-2025-34066 have an EU (EUVD) identifier?: Yes. CVE-2025-34066 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-19640.
When was CVE-2025-34066 published?: CVE-2025-34066 was published on 2025-07-01 and last updated on 2026-06-17.

References

Other CWE-295 (Improper Certificate Validation) vulnerabilities

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CVE-2022-20703 — Critical (CVSS 10.0): Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker…
CVE-2021-1471 — Critical (CVSS 9.9): Multiple vulnerabilities in Cisco Jabber for Windows, Cisco Jabber for MacOS, and Cisco Jabber for mobile platforms…
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