CVE-2021-33110: intel ac_1550_firmware Improper Input Validation
CVSS: 6.5v3.1MediumModified
AliasesUBUNTU-CVE-2021-33110
Published 09-02-2022Last modified 05-05-2025
Vulnerability summary
CVE-2021-33110 is a medium (CVSS 6.5) Improper Input Validation vulnerability in intel ac_1550_firmware. EPSS estimates a 0.55% chance of exploitation in the next 30 days, higher than 44.8% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)EPSS score
0.55%
0%100%
Low · +0.04 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) Wireless Bluetooth(R) products and Killer(TM) Bluetooth(R) products in Windows 10 and 11 before version 22.80 may allow an unauthenticated user to potentially enable denial of service via adjacent access.
CVSS metrics
4 scores · 3 sources · 2 versionsMedium 6.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST6.5MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Low 3.3Preferred score · NVD (NIST)
AV:A/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
0.55%
Chance of exploitation in the next 30 days
Percentile
45%
Versus all other CVEs
30-day change
+0.04 pp
From 0.50% on 19-09-2026
19-09-202619-10-2026
EPSS score0.55%
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< 22.80
- 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-00581.htmlX Refsource MISCREPORTVendor Advisory