CVE-2026-50515

CRITICALCVSS 9.9/10EPSS 0.91%

Last modified

CVE-2026-50515 is a critical-severity vulnerability rated 9.9/10 on the CVSS scale. Deserialization of untrusted data in Azure Service Bus allows an authorized attacker to execute code over a network.. EPSS estimates a 0.91% chance of exploitation in the next 30 days.

Description

Deserialization of untrusted data in Azure Service Bus allows an authorized attacker to execute code over a network.

Metrics

CVSS 3.1
9.9/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS Probability
0.91%

56.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
MicrosoftAzure Service BusAll versions

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2026-50515?
Deserialization of untrusted data in Azure Service Bus allows an authorized attacker to execute code over a network.
How severe is CVE-2026-50515?
CVE-2026-50515 has a CVSS score of 9.9/10 (CRITICAL severity). The EPSS model estimates a 0.91% probability of exploitation in the next 30 days.
How do I fix CVE-2026-50515?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

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Source: NVD / NIST