How severe is CVE-2026-70352?

CVE-2026-70352 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-2026-70352 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-70352?

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-2026-70352 published?

CVE-2026-70352 was published on 2026-09-03 and last updated on 2026-09-08.

CVE-2026-70352

CVE-2026-70352 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-306.

Key facts

Severity: Critical (CVSS 3.x base score 10.0)
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Published: 2026-09-03
Last modified: 2026-09-08

Description

Missing authentication for critical function in Azure AI Language allows an unauthorized attacker to elevate privileges over a network.

Frequently asked questions

What is CVE-2026-70352?: Missing authentication for critical function in Azure AI Language allows an unauthorized attacker to elevate privileges over a network.
How severe is CVE-2026-70352?: CVE-2026-70352 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-2026-70352 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-70352?: 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-2026-70352 published?: CVE-2026-70352 was published on 2026-09-03 and last updated on 2026-09-08.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70352

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