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CVE-2026-65199— Huawei openUBMC low-privilege SNMP to administrator privilege escalation

Quick assessment

Affected
Huawei openBMC
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

openUBMC 将完整的特权集分配给代表 SNMP 调用者的伪用户身份。因此，经过身份认证但权限较低的 SNMP 用户能够以管理员身份调用映射的后端操作。在 中， 函数为包含 伪用户的 组返回全部九项特权。

CVSS 5.4 · Medium EPSS 0.15% · P4

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts

Affected Version Matrix 1

VendorProduct Version RangeStatus
Huawei openBMC ≤ 26.06 affected
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I. Basic Information for CVE-2026-65199

Vulnerability Information
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Vulnerability Title
Huawei openUBMC low-privilege SNMP to administrator privilege escalation
Source: CVE Program / CVE List V5
Vulnerability Description
openUBMC 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
特权授予不正确
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Huawei openBMC 0 ~ 26.06 -

II. Public POCs for CVE-2026-65199

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III. Intelligence Information for CVE-2026-65199

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Vendor Advisories for CVE-2026-65199 (1)

Same Patch Batch · Huawei · 2026-10-13 · 3 CVEs total

CVE-2026-65198 8.6 HIGH Huawei Default SNMPv3 USM key
CVE-2026-65200 3.5 LOW Huawei malicious on-bus PLDM or NCSI device can drive out-of-bounds-heap reads via short M

IV. Related Vulnerabilities

Same product: openBMC
Same vendor: Huawei
Same weakness: CWE-266

V. Comments for CVE-2026-65199

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