5.5

CVE-2021-33117: intel bios

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2021-33117DEBIAN-CVE-2021-33117
Published 12-05-2022Last modified 05-05-2025
Open JSON

Vulnerability summary

CVE-2021-33117 is a medium (CVSS 5.5) vulnerability in intel bios. EPSS estimates a 0.32% chance of exploitation in the next 30 days, higher than 23.2% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.32%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 2
USN-5486-1USN-5535-1

Timeline

  1. 12-05-2022
    PublishedVulnerability first disclosed.
  2. 05-05-2025
    Last modifiedVulnerability information updated.

Description

Improper access control for some 3rd Generation Intel(R) Xeon(R) Scalable Processors before BIOS version MR7, may allow a local attacker to potentially enable information disclosure via local access.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.32%

Chance of exploitation in the next 30 days

Percentile

23%

Versus all other CVEs

30-day change

+0.01 pp

From 0.31% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.32%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Debian1 product
  • intel-microcode< 3.20220207.1
Intel1 product
Netapp1 product
Ubuntu1 product
  • intel-microcodeAll versions (No fix recorded) | < 3.20220510.0ubuntu0.16.04.1+esm1 | < 3.20220510.0ubuntu0.18.04.1 | < 3.20220510.0ubuntu0.20.04.1 | < 3.20220510.0ubuntu0.22.04.1

4 vendors · 4 products

References

7 links