Vulnerability · Published Aug 6, 2026 · Assigned by microsoft
CVE-2026-50515Azure Service Bus Remote Code Execution Vulnerability
Critical 9.9
In plain English
A critical-severity unsafe deserialization in Azure Service Bus from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.7% (higher than 77% of all known vulnerabilities).
Severity (CVSS 3.1)9.9Critical
Exploit odds (30 days)1.7%top 22.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Deserialization of untrusted data in Azure Service Bus allows an authorized attacker to execute code over a network.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Azure Service Bus | - |
Weakness: CWE-502 · Vector: 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
References
- Azure Service Bus Remote Code Execution Vulnerability vendor-advisory, patch