5.7

CVE-2021-33155: intel ac_1550_firmware Improper Input Validation

CVSS: 5.7v3.1MediumModified
AliasesUBUNTU-CVE-2021-33155
Published 09-02-2022Last modified 05-05-2025
Open JSON

Vulnerability summary

CVE-2021-33155 is a medium (CVSS 5.7) Improper Input Validation vulnerability in intel ac_1550_firmware. EPSS estimates a 0.47% chance of exploitation in the next 30 days, higher than 39.1% of scored vulnerabilities.

Overall risk
23/100
0100
Low · default modelHow is this calculated?
CVSS score
5.7/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.47%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 8 · Related 7
MGASA-2022-0065OPENSUSE-SU-2022:1065-1SUSE-SU-2022:0721-1SUSE-SU-2022:0910-1SUSE-SU-2022:0933-1SUSE-SU-2022:1065-1

Timeline

  1. 09-02-2022
    PublishedVulnerability first disclosed.
  2. 05-05-2025
    Last modifiedVulnerability information updated.

Description

Improper input validation in firmware for some Intel(R) Wireless Bluetooth(R) and Killer(TM) Bluetooth(R) products before version 22.100 may allow an authenticated user to potentially enable denial of service via adjacent access.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.47%

Chance of exploitation in the next 30 days

Percentile

39%

Versus all other CVEs

30-day change

0.00 pp

From 0.47% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.47%

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

Affected systems

Intel16 products
Ubuntu1 product
  • linux-firmwareAll versions (No fix recorded)

2 vendors · 17 products

References

3 links