Huawei openUBMC low-privilege SNMP to administrator privilege escalation

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-65199
StatePUBLISHED
AssignerrunZero
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-13 15:17:46 UTC
Updated2026-10-16 19:56:15 UTC
DescriptionopenUBMC assigns the full privilege set to pseudo-identities representing SNMP callers. An authenticated, but low-privilege, SNMP user can therefore invoke mapped backend operations as an administrative identity. In `route_mapper/account.lua`, `get_user_privilege` returns the complete nine-privilege set for a `special_users` group that includes the `SNMPv1_v2c` pseudo-user.

Risk And Classification

Primary CVSS: v3.1 5.4 MEDIUM from 44488dab-36db-4358-99f9-bc116477f914

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

EPSS: 0.001500000 probability, percentile 0.038000000 (date 2026-10-16)

Problem Types: CWE-266 | CWE-266 CWE-266 Incorrect privilege assignment

VersionSourceTypeScoreSeverityVector
3.144488dab-36db-4358-99f9-bc116477f914Secondary5.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
3.1CNACVSS5.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Huawei OpenBMC affected 26.06 semver Not specified

References

ReferenceSourceLinkTags
www.runzero.com/advisories/huawei-openUBMC-snmp-privsec-cve-2026-65199 44488dab-36db-4358-99f9-bc116477f914 www.runzero.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: HD Moore of runZero (en)

CNA: Tod Beardsley of runZero (en)

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