AMI MegaRAC SPx Authentication Bypass by Spoofing
CVE-2024-54085 is a critical-severity authentication bypass by spoofing vulnerability in MegaRAC-SPx from AMI, with a CVSS 3.1 base score of 9.8 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. The record lists versions 12.7, 13.5 as the first without the flaw, so updating MegaRAC-SPx to one of those releases or later removes the exposure. CISA added it to the Known Exploited Vulnerabilities catalogue on June 25, 2025, which means attacks have been observed in the wild.
Attackers are already exploiting this vulnerability, according to CISA.
What to do
- Update MegaRAC-SPx to 12.7 or 13.5, whichever matches your release line, or a later version.
- Update Megarac Sp-x to 12.7 or 13.5, whichever matches your release line, or a later version.
- CISA's required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- Read the advisory on go.ami.com for workarounds and exact fixed builds.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| AMI | MegaRAC-SPx | 12.0 up to, but not including, 12.7; 13.0 up to, but not including, 13.5 | 12.7, 13.5 |
| Ami | Megarac Sp-x | 12 up to, but not including, 12.7; 13 up to, but not including, 13.5 | 12.7, 13.5 |
| NetApp | H300s Firmware | Not specified in the record | Not stated |
| NetApp | H500s Firmware | Not specified in the record | Not stated |
| NetApp | H700s Firmware | Not specified in the record | Not stated |
| NetApp | H410s Firmware | Not specified in the record | Not stated |
| NetApp | H410c Firmware | Not specified in the record | Not stated |
| NetApp | Sg6160 Firmware | Not specified in the record | Not stated |
| NetApp | Sgf6112 Firmware | Not specified in the record | Not stated |
| NetApp | Sg110 Firmware | Not specified in the record | Not stated |
| NetApp | Sg1100 Firmware | Not specified in the record | Not stated |
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
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- 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:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 4.0 | 10.0 | Critical | CNA (ami.com) |
| CVSS 3.1 | 9.8 | Critical | NVD |
Official description
AMI’s SPx contains a vulnerability in the BMC where an Attacker may bypass authentication remotely through the Redfish Host Interface. A successful exploitation of this vulnerability may lead to a loss of confidentiality, integrity, and/or availability.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Authentication Bypass by Spoofing
This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.
More Authentication Bypass by Spoofing vulnerabilities (CWE-290)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: active, automatable: yes, technical impact: total).
- Added to CISA's Known Exploited Vulnerabilities catalogue.
- Deadline for US federal agencies to remediate, set by CISA.
- Record last changed materially (score, affected products, status or references).
References
Third-party and government advisories
- arstechnica.com/security/2025/06/active-exploitation-of-ami-management-tool-imperils-thousands-of-servers/Press/Media Coverage, Third Party Advisory
- eclypsium.com/blog/bmc-vulnerability-cve-2024-05485-cisa-known-exploited-vulnerabilities/Press/Media Coverage, Third Party Advisory
- security.netapp.com/advisory/ntap-20250328-0003/Third Party Advisory
- bleepingcomputer.com/news/security/cisa-ami-megarac-bug-that-lets-hackers-brick-servers-now-actively-exploite…Press/Media Coverage, Third Party Advisory
- networkworld.com/article/4013368/ami-megarac-authentication-bypass-flaw-is-being-exploitated-cisa-warns.htmlPress/Media Coverage, Third Party Advisory
- nvd.nist.gov/vuln/detail/CVE-2024-54085US Government Resource
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-54085US Government Resource
Other vulnerabilities in MegaRAC-SPx
- 8.8 High severity
- 8.8 High severity
- 8.8 High severity
- 8.8 High severity
- 8.8 High severity
- 8.8 High severity
Recent Authentication Bypass by Spoofing vulnerabilities
- 8.5 High severity
- 7.0 High severity
- 9.4 Critical severity
- 9.8 Critical severity
- 9.8 Critical severity
- 7.5 High severity
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