CVE-2022-23304: fedoraproject fedora Observable Discrepancy
CVSS: 9.8v3.1CriticalModified
AliasesALPINE-CVE-2022-23304UBUNTU-CVE-2022-23304DEBIAN-CVE-2022-23304
Published 17-01-2022Last modified 14-07-2026
Vulnerability summary
CVE-2022-23304 is a critical (CVSS 9.8) Observable Discrepancy vulnerability in fedoraproject fedora. EPSS estimates a 1.91% chance of exploitation in the next 30 days, higher than 79.4% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.1 (NVD)EPSS score
1.91%
0%100%
Low · +0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 7 · Related 6Timeline
- 17-01-2022PublishedVulnerability first disclosed.
- 14-07-2026Last modifiedVulnerability information updated.
Description
The implementations of EAP-pwd in hostapd before 2.10 and wpa_supplicant before 2.10 are vulnerable to side-channel attacks as a result of cache access patterns. NOTE: this issue exists because of an incomplete fix for CVE-2019-9495.
CVSS metrics
5 scores · 4 sources · 2 versionsCritical 9.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 4 agree
- OSV · AlpineEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Medium 6.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
1.91%
Chance of exploitation in the next 30 days
Percentile
79%
Versus all other CVEs
30-day change
+0.01 pp
From 1.90% on 18-09-2026
18-09-202618-10-2026
EPSS score1.91%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
W1.fi2 products
- hostapd< 2.10
- wpa_supplicant< 2.10
Alpine1 product
- hostapd< 2.9-r4 | < 2.10-r0
Debian1 product
- wpa< 2:2.10-1
Fedoraproject1 product
- fedoraEOL35
Ubuntu1 product
- wpa< 2:2.9-1ubuntu4.6
5 vendors · 6 products
References
11 links- lists.fedoraproject.org/archives/…Vendor Advisory
- security.gentoo.org/glsa/202309-16Vendor Advisory