CVE-2023-3043

Unauthenticated BMC compromise via stack buffer overflow

Published Jan 9, 2024 · Updated Jun 17, 2025

Stack-based buffer overflow in AMI MegaRAC SP-X 12 before 12.7 and 13 before 13.6 allows remote attackers to compromise the BMC. AMI has not disclosed the affected BMC service, request field, or unsafe copy operation that overwrites the stack. The target must be reachable on an adjacent network; successful exploitation can expose or alter BMC data or interrupt its service.

CVSS severity9.6
Critical
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in AMI MegaRAC SP-X 12 before 12.7 and 13 before 13.6 allows remote attackers to compromise the BMC. AMI has not disclosed the affected BMC service, request field, or unsafe copy operation that overwrites the stack. The target must be reachable on an adjacent network; successful exploitation can expose or alter BMC data or interrupt its service.

The record

CVE
CVE-2023-3043
Published
Jan 9, 2024
Updated
Jun 17, 2025
Vendor
American Megatrends International
Product
MegaRAC SP-X
Classifications
CWE-787, CWE-121, T1210
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 9, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 17, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=12 <12.7
  2. Affected versionversion=13 <13.6

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

American Megatrends International · MegaRAC SP-Xversion=12 <12.7; version=13 <13.6

Published CVSS scores

9.6AMICVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
8.8NIST NVDCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
CWE-121Stack-based Buffer Overflow
T1210Exploitation of Remote Services

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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