TI-2026-71788 Aliases CVE-2026-65200 GHSA-62hr-2w2v-p8gj

Huawei malicious on-bus PLDM or NCSI device can drive out-of-bounds-heap reads via short MCTP responses

LOW 16CWE-191Published 2026-10-13 · Updated 2026-10-14

Key facts

Attack vector: Physical
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: Low · None · Low
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00143 3rd percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Huawei	openBMC	up to 26.06	—	No fix listed	CNA

openBMC VendorHuawei Affected up to 26.06 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-13 Threatist record created from CVE-2026-65200
2026-10-13 Alias added: GHSA-62hr-2w2v-p8gj
2026-10-15 CISA SSVC decision points changed

References

Advisory 1

https://www.runzero.com/advisories/huawei-malicious-device-integer-underflow-cve-2026-65200

TI-2019-00485 Use after free in Microsoft Windows KEVCVSS 3.1CRITICAL 9.8
TI-2016-02580 Code injection in Apache Struts through Dynamic Method Invocation KEVCVSS 3.1HIGH 8.1
TI-2020-00067 Out-of-bounds write in Android KEVCVSS 3.1HIGH 7.8
TI-2019-01829 Use after free in Android KEVCVSS 3.1HIGH 7.8
TI-2017-10594 Heap-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a… CVSS 3.1CRITICAL 9.8
TI-2017-12631 Improper input validation in Huawei HG532 CVSS 3.0HIGH 8.8

See all 2424 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences