CVE-2026-50515
Azure Service Bus Remote Code Execution Vulnerability
Deserialization of untrusted data in Azure Service Bus allows an authorized attacker to execute code over a network.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Azure Service Bus Remote Code Execution Vulnerability
Deserialization of untrusted data in Azure Service Bus allows an authorized attacker to execute code over a network.
- Record
CVE-2026-50515- CVSS 3.1
- 9.9 Critical
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C - Weakness
- CWE-502
- Updated
- 2026-11-02
EUVDEUVD-2026-54324
Deserialization of untrusted data in Azure Service Bus allows an authorized attacker to execute code over a network.
- Record
EUVD-2026-54324- CVSS 3.1
- 9.9 Critical
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-fm3h-q54v-rjrj
Deserialization of untrusted data in Azure Service Bus allows an authorized attacker to execute...
Deserialization of untrusted data in Azure Service Bus allows an authorized attacker to execute code over a network.
- Record
GHSA-fm3h-q54v-rjrj- CVSS 3.1
- 9.9 Critical
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
NVD
Deserialization of untrusted data in Azure Service Bus allows an authorized attacker to execute code over a network.
- Record
CVE-2026-50515- CVSS 3.1
- 9.9 Critical
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-50515 is a critical vulnerability (CVSS 9.9) in Microsoft Azure Service Bus, published August 6, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.69%, the 77th percentile. No source names a fixed version.