Missing Cryptographic Step

published 2023-07-05 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-38529

cvss: 6.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 23%
public exploits: 0; none known

AMI SPx contains a vulnerability in the BMC where a user may cause a missing cryptographic step by generating a hash-based message authentication code (HMAC). A successful exploit of this vulnerability may lead to the loss confidentiality, integrity, and authentication.

Patch / fix

fixed in 1

AMI MegaRAC_SPx 12.2

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 23 mo ago (2024-11-21)

Exploit prediction

0.30% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	6.3	CVSS:3.1/AV:A/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
NVD	3.1	8.1	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Affected products

AMI MegaRAC_SPx

Classification

Weakness

CWE-325 Missing Cryptographic Step

References

9443417.fs1.hubspotusercontent-na1.net /hubfs/9443417/Security%20Advisories/AMI-SA-2023006.pdf
vendor-advisory

Sources

CVE List CVE-2023-34471
NVD CVE-2023-34471

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Summary