How severe is CVE-2026-42933?

CVE-2026-42933 has a CVSS 3.x base score of 10.0, 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 high.

Is CVE-2026-42933 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-42933?

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.

When was CVE-2026-42933 published?

CVE-2026-42933 was published on 2026-07-23 and last updated on 2026-07-27.

CVE-2026-42933

CVE-2026-42933 is a critical-severity vulnerability with a CVSS 3.x base score of 10.0. 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-441.

Key facts

Severity: Critical (CVSS 3.x base score 10.0)
CVSS v4: 10.0
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-441
Published: 2026-07-23
Last modified: 2026-07-27

Description

Pronetiqs IntraVUE versions 3.2.1a14 and prior have an unintended proxy or intermediary vulnerability which could allow an attacker to use an active proxy, which would bypass OT segmentation.

Frequently asked questions

What is CVE-2026-42933?: Pronetiqs IntraVUE versions 3.2.1a14 and prior have an unintended proxy or intermediary vulnerability which could allow an attacker to use an active proxy, which would bypass OT segmentation.
How severe is CVE-2026-42933?: CVE-2026-42933 has a CVSS 3.x base score of 10.0, 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 high.
Is CVE-2026-42933 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-42933?: 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.
When was CVE-2026-42933 published?: CVE-2026-42933 was published on 2026-07-23 and last updated on 2026-07-27.

References

https://www.cisa.gov/news-events/ics-advisories/icsa-26-204-04

Other CWE-441 vulnerabilities

CVE-2026-69399 — Critical (CVSS 10.0): Azure Arc Elevation of Privilege Vulnerability
CVE-2026-83548 — Critical (CVSS 10.0): A Pre-authentication SSRF vulnerability exists in the SMA1000 Appliance Work Place interface due to an unintended…
CVE-2026-39906 — Critical (CVSS 10.0): Unisys WebPerfect Image Suite versions 3.0.3960.22810 and 3.0.3960.22604 expose a deprecated .NET Remoting TCP channel…
CVE-2026-100706 — Critical (CVSS 9.9): kyverno before 1.19.1 fails to properly validate URL-encoded path segments in Policy apiCall urlPath, allowing…
CVE-2026-67567 — Critical (CVSS 9.9): A flaw was found in the multicloud-operators-subscription component. This vulnerability allows a tenant, who has the…
CVE-2026-72526 — Critical (CVSS 9.9): A flaw was found in the multicloud-integrations component. The Application propagation controller processes the…

Browse all CWE-441 vulnerabilities →