CVE-2026-73783: hewlett packard enterprise (hpe) aos-cx Stack-based Buffer Overflow

Vulnerability summary

CVE-2026-73783 is a medium (CVSS 4.9) Stack-based Buffer Overflow vulnerability in hewlett packard enterprise (hpe) aos-cx. EPSS estimates a 0.44% chance of exploitation in the next 30 days, higher than 36.9% of scored vulnerabilities.

Timeline

1. 01-09-2026
   PublishedVulnerability first disclosed.
2. 02-09-2026
   Last modifiedVulnerability information updated.

Description

Stack overflow vulnerabilities exist in an API endpoint of AOS-CX. Successful exploitation could allow an authenticated malicious actor to cause a denial-of-service condition on the affected system.

• CWE-121Stack-based Buffer OverflowA stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).