stack-based buffer overflow
AMI’s SPx contains a vulnerability in the BMC where an Attacker may cause a stack-based buffer overflow via an adjacent network. A successful exploitation of this vulnerability may lead to a loss of confidentiality, integrity, and/or availability.
- Published
- Jan 9, 2024
- Updated
- Jun 17, 2026
- EPSS
- 0.3% · 21th percentile
- CWE
- CWE-121
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Report tools
Action score
35
Monitor
Low priority for now.
- CVSS
- 35 / 40 · 8.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.3%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- 8.8
- CNA · AMI
- 9.6
- 0.8 point gap
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| ami | megarac sp-x | cpe:2.3:o:ami:megarac_sp-x |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- ami megarac sp-x12 and later · before 12.7
- ami megarac sp-x13 and later · before 13.6
Versions reported by the vendor
Affected version ranges reported by the assigning authority (AMI). Independent of NVD's CPE analysis and usually ahead of it.
AMI MegaRAC_SPx
- 12 and later · before 12.7affected · RC
- 13 and later · before 13.6affected · RC
Same product
ami: all recordsOther highest-scoring records for the same primary product.
- CVE-2024-54085Redfish Authentication BypassKEV88Now
- CVE-2023-34338hard coded cryptographic key39Monitor
- CVE-2022-40259MegaRAC Default Credentials Vulnerability39Monitor
- CVE-2022-40242MegaRAC Default Credentials Vulnerability39Monitor
- CVE-2023-34342AMI BMC contains a vulnerability in the IPMI handler, where an
attacker can upload and download arbitrary files under certain circumstances,36Monitor
- CVE-2023-28863AMI MegaRAC SPx12 and SPx13 devices have Insufficient Verification of Data Authenticity.36Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| AMI MegaRAC_SPx | 12.7 | Vendor (CNA) |
| AMI MegaRAC_SPx | 13.6 | Vendor (CNA) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
- CVE-2023-30430 days apartStack-based Buffer Overflow BMC35Monitor
- CVE-2023-372960 days apartStack-based Buffer Overflow35Monitor
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Someone on the same network segment can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Adjacent
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-121 · Stack-based Buffer OverflowCVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Vendor advisories and official records. Exploit/PoC links are deliberately left out.