How severe is CVE-2025-70043?

CVE-2025-70043 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2025-70043 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-70043?

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

Does CVE-2025-70043 have an EU (EUVD) identifier?

Yes. CVE-2025-70043 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-207647.

When was CVE-2025-70043 published?

CVE-2025-70043 was published on 2026-02-23 and last updated on 2026-06-17.

CVE-2025-70043

CVE-2025-70043 is a critical-severity vulnerability with a CVSS 3.x base score of 9.1. 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: Critical (CVSS 3.x base score 9.1)
EPSS exploit prediction: 0% (8th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-207647
Weakness: CWE-295
Published: 2026-02-23
Last modified: 2026-06-17

Description

An issue pertaining to CWE-295: Improper Certificate Validation was discovered in Ayms node-To master. The application disables TLS/SSL certificate validation by setting 'rejectUnauthorized': false in TLS socket options

Frequently asked questions

What is CVE-2025-70043?: An issue pertaining to CWE-295: Improper Certificate Validation was discovered in Ayms node-To master. The application disables TLS/SSL certificate validation by setting 'rejectUnauthorized': false in TLS socket options
How severe is CVE-2025-70043?: CVE-2025-70043 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2025-70043 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-70043?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-70043 have an EU (EUVD) identifier?: Yes. CVE-2025-70043 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-207647.
When was CVE-2025-70043 published?: CVE-2025-70043 was published on 2026-02-23 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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