How severe is CVE-2019-1234?

CVE-2019-1234 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2019-1234 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 58% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-1234?

CVE-2019-1234 affects Microsoft Azure Stack. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-1234?

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.

When was CVE-2019-1234 published?

CVE-2019-1234 was published on 2019-11-12 and last updated on 2026-06-17.

CVE-2019-1234

CVE-2019-1234 is a high-severity vulnerability in Microsoft Azure Stack with a CVSS 3.x base score of 7.5. Its EPSS exploit-prediction score of 58% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-290.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 58% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-290
Affected product: Microsoft Azure Stack
Published: 2019-11-12
Last modified: 2026-06-17

Description

A spoofing vulnerability exists when Azure Stack fails to validate certain requests, aka 'Azure Stack Spoofing Vulnerability'.

Frequently asked questions

What is CVE-2019-1234?: A spoofing vulnerability exists when Azure Stack fails to validate certain requests, aka 'Azure Stack Spoofing Vulnerability'.
How severe is CVE-2019-1234?: CVE-2019-1234 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2019-1234 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 58% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-1234?: CVE-2019-1234 affects Microsoft Azure Stack. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-1234?: 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.
When was CVE-2019-1234 published?: CVE-2019-1234 was published on 2019-11-12 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:microsoft:azure_stack:-:*:*:*:*:*:*:*

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