CVE-2026-65198 Huawei openUBMC - Authentication Bypass

Huawei openUBMC contains a broken authentication caused by default SNMPv3 USM keys using the same value for authentication and privacy, letting attackers with the key authenticate and decrypt SNMPv3 traffic on any affected unit, exploit requires possession of the default key.

CVSS base score 8.6 /10
High
CISA KEV
Not listed
Public exploit
None known
EPSS
0.19% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Authentication Bypass
Impact
Privilege Escalation
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
Published
13 October 2026
Updated
15 October 2026
Weakness
CWE-321

Vendor fix

Change default SNMPv3 USM keys to unique per-unit values and rotate keys upon provisioning.

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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