CVE-2026-76676 EdgeConnect SD-WAN Gateways - Buffer Overflow

EdgeConnect SD-WAN Gateways contain a buffer overflow caused by unspecified conditions in the underlying operating system, letting unauthenticated adjacent attackers execute arbitrary code as privileged users, exploit requires certain preconditions outside attacker control.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
EPSS
0.35% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Buffer Overflow
Impact
Remote Code Execution, Privilege Escalation
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
15 September 2026
Updated
15 October 2026
Weakness
CWE-121

Vendor fix

Update to the latest version of EdgeConnect SD-WAN Gateways.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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