CVE-2026-77900: critical vulnerability in Microsoft Azure App Service for Linux
Azure App Service Remote Code Execution Vulnerability
Published · Updated
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.8epss 0.5%
exploitation probability
0.5%top 59% of all CVEs
observed exploitation
nono source reports it
Missing authentication for critical function in Azure App Service allows an unauthorized attacker to execute code over a network.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Affected products
Microsoft · Azure App Service for LinuxRelated CVEs — Microsoft Azure App Service for Linux
In the same product, most dangerous first.