x11dpg-hgx2_firmware: Improper Write Handling in Limited-write Non-Volatile Memories
CVE-2024-36432 is a high-severity improper write handling in limited-write non-volatile memories vulnerability in x11dpg-hgx2_firmware from Supermicro, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited with local access to the system by an attacker with administrator privileges, without any action from a user. The record lists version 4.4 as the first without the flaw, so updating x11dpg-hgx2_firmware to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.15% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update x11dpg-hgx2_firmware to 4.4 or a later version.
- Update x11pdg-qt_firmware to 4.4 or a later version.
- Update x11pdg-ot_firmware to 4.4 or a later version.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Supermicro | x11dpg-hgx2_firmware | before 4.4 | 4.4 |
| Supermicro | x11pdg-qt_firmware | before 4.4 | 4.4 |
| Supermicro | x11pdg-ot_firmware | before 4.4 | 4.4 |
| Supermicro | x11pdg-sn_firmware | before 4.4 | 4.4 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- LocalThe attacker needs local access or must trick a user into running something.
- Attack complexity
- HighSuccess depends on conditions outside the attacker's control.
- Privileges required
- HighAdministrator-level access is required first.
- User interaction
- NoneNo action by a victim is required.
- Scope
- ChangedThe attack can reach beyond the vulnerable component into other systems.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H. Scored by CNA (mitre.org).
Official description
An arbitrary memory write vulnerability was discovered in Supermicro X11DPG-HGX2, X11PDG-QT, X11PDG-OT, and X11PDG-SN motherboards with BIOS firmware before 4.4.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Write Handling in Limited-write Non-Volatile Memories
The product does not implement or incorrectly implements wear leveling operations in limited-write non-volatile memories.
How developers prevent this class of flaw
- Include secure wear leveling algorithms and ensure they may not be bypassed.
More Improper Write Handling in Limited-write Non-Volatile Memories vulnerabilities (CWE-1246)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Other references
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