CVE-2021-33114: intel ac_1550_firmware Improper Input Validation
CVSS: 5.7v3.1MediumModified
AliasesUBUNTU-CVE-2021-33114
Published 09-02-2022Last modified 05-05-2025
Vulnerability summary
CVE-2021-33114 is a medium (CVSS 5.7) Improper Input Validation vulnerability in intel ac_1550_firmware. EPSS estimates a 0.50% chance of exploitation in the next 30 days, higher than 41.2% of scored vulnerabilities.
CVSS score
5.7/10
010
Medium · v3.1 (CVE.org)EPSS score
0.50%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 09-02-2022PublishedVulnerability first disclosed.
- 05-05-2025Last modifiedVulnerability information updated.
Description
Improper input validation for some Intel(R) PROSet/Wireless WiFi in multiple operating systems and Killer(TM) WiFi in Windows 10 and 11 may allow an authenticated user to potentially enable denial of service via adjacent access.
CVSS metrics
4 scores · 3 sources · 2 versionsMedium 5.7Preferred score · CVE.org (CNA)
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated5.7MediumCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- NVDNIST5.7MediumCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Low 2.7Preferred score · NVD (NIST)
AV:A/AC:L/Au:S/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
0.50%
Chance of exploitation in the next 30 days
Percentile
41%
Versus all other CVEs
30-day change
0.00 pp
From 0.50% on 20-09-2026
20-09-202620-10-2026
EPSS score0.50%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Intel15 products
- ac_1550_firmware< 3.1021.733.0
- ac_3165_firmware< 22.80
- ac_3168_firmware< 22.80
- ac_7265_firmware< 22.80
- ac_8260_firmware< 22.80
Ubuntu1 product
- linux-firmwareAll versions (No fix recorded)
2 vendors · 16 products
References
3 links- www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00582.htmlX Refsource MISCREPORTVendor Advisory