What is CVE-2026-77532?

CVE-2026-77532 is a critical-severity vulnerability in Ubiquiti Inc Edgemax Edgeswitch, classified under Heap-based Buffer Overflow. CVSS score: 9.6/10. Published 2026-08-26.

How severe is CVE-2026-77532?

Critical severity. CVSS v3 base score is 9.6 out of 10.

Buffer overflow in Ubiquiti Inc Edgemax Edgeswitch

CVE-2026-77532

A malicious actor with access to an adjacent network could exploit a Buffer Overflow vulnerability found in a DHCPv6-enabled EdgeMAX EdgeSwitch to initiate a Remote Code Execution on such device.

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Ubiquiti Inc Edgemax Edgeswitch

Weakness classification (CWE)

CWE-122 — Heap-based Buffer Overflow

References

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Frequently asked questions

What is CVE-2026-77532?: CVE-2026-77532 is a critical-severity vulnerability in Ubiquiti Inc Edgemax Edgeswitch, classified under Heap-based Buffer Overflow. CVSS score: 9.6/10. Published 2026-08-26.
How severe is CVE-2026-77532?: Critical severity. CVSS v3 base score is 9.6 out of 10.