CVE-2023-34472

HTTP message integrity loss via CRLF injection

Published Jul 5, 2023 · Updated Oct 28, 2024

HTTP header injection in AMI MegaRAC SP-X 12.0 before 12.7 and 13.0 before 13.5 allows remote authenticated users to alter HTTP messages. The BMC accepts CRLF sequences in HTTP header data without neutralizing them, but AMI has not disclosed the affected endpoint, header, or code path. Exploitation requires adjacent-network access and low privileges; the reported consequence is integrity loss, with no confidentiality or availability impact.

CVSS severity5.7
Medium
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

HTTP header injection in AMI MegaRAC SP-X 12.0 before 12.7 and 13.0 before 13.5 allows remote authenticated users to alter HTTP messages. The BMC accepts CRLF sequences in HTTP header data without neutralizing them, but AMI has not disclosed the affected endpoint, header, or code path. Exploitation requires adjacent-network access and low privileges; the reported consequence is integrity loss, with no confidentiality or availability impact.

The record

CVE
CVE-2023-34472
Published
Jul 5, 2023
Updated
Oct 28, 2024
Vendor
American Megatrends International
Product
MegaRAC SP-X
Classifications
CWE-113, CAPEC-105, T1210
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 5, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 28, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=12.0 <12.7
  2. Affected versionversion=13.0 <13.5

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

American Megatrends International · MegaRAC SP-Xversion=12.0 <12.7; version=13.0 <13.5

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
5.7AMICVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-113Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')
CAPEC-105HTTP Request Splitting
T1210Exploitation of Remote Services

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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