CVE-2026-65198Network attack vector

Device takeover via shared default SNMPv3 keys

Published Oct 13, 2026 · Updated Oct 13, 2026

Hardcoded SNMPv3 keys in Huawei openUBMC 26.06 and earlier allow remote attackers to administer devices and decrypt traffic. The manifest build customization and account manufacture default_password.lua files seed identical authentication and encryption keys across devices, independently of Administrator password resets. Exploitation requires reachable SNMPv3 with the shipped keys retained; accepted management requests include system resets and firmware upgrades.

CVSS severityUnavailable
Unscored
EPSS probability0.19%
Next 30 days · Oct 18, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Hardcoded SNMPv3 keys in Huawei openUBMC 26.06 and earlier allow remote attackers to administer devices and decrypt traffic. The manifest build customization and account manufacture default_password.lua files seed identical authentication and encryption keys across devices, independently of Administrator password resets. Exploitation requires reachable SNMPv3 with the shipped keys retained; accepted management requests include system resets and firmware upgrades.

The record

CVE
CVE-2026-65198
Published
Oct 13, 2026
Updated
Oct 13, 2026
Vendor
Huawei
Product
openUBMC
Classifications
T1078.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 13, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=26.06

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Huawei · openUBMCversion=0 <=26.06

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1078.001Default Accounts

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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