CVE-2026-65200 (GCVE-0-2026-65200)

Vulnerability from cvelistv5 – Published: 2026-10-13 14:19 – Updated: 2026-10-13 14:19
VLAI
Title
Huawei malicious on-bus PLDM or NCSI device can drive out-of-bounds-heap reads via short MCTP responses
Summary
The openUBMC device-management process parses PLDM-over-MCTP and NCSI-over-MCTP responses from on-bus devices, and three response parsers in the shared transport libraries subtract a fixed header or reserved-field size from a device-supplied response length without a lower-bound check. An undersized response wraps the unsigned length difference to a very large value, and the parser then reads far past the response buffer. The affected code sits in the base (non-vendor) PLDM control class and the Huawei NCSI driver, so it is reachable for any PLDM endpoint or Huawei NIC on the internal management bus, unlike the vendor-specific wangxun parser tracked separately.
Severity
3.5 (Low)
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CNA · runZero (v2.0.3)
CWE
  • CWE-191 - Integer underflow (wrap or wraparound)
Assigner
runZero CNA under the icscert root
CNA scorecard C 71/100 over 30 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Huawei openBMC Affected: 0 , ≤ 26.06 (semver)
guessed Create a notification for this product.
Date Public
2026-10-13 14:00
Credits
HD Moore of runZero Tod Beardsley of runZero
Show details on NVD website
To clipboard 

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