CVE-2022-49023: wifi: cfg80211: fix buffer overflow in elem comparison
Vulnerability summary
CVE-2022-49023 is a high (CVSS 7.8) Classic Buffer Overflow vulnerability in linux. EPSS estimates a 0.38% chance of exploitation in the next 30 days, higher than 30.2% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 8 · Related 8Timeline
- 21-10-2024PublishedVulnerability first disclosed.
- 05-08-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: fix buffer overflow in elem comparison For vendor elements, the code here assumes that 5 octets are present without checking. Since the element itself is already checked to fit, we only need to check the length.
CVSS metrics
4 scores · 4 sources · 1 version- CVE.orgCNA7.1HighCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:HDiffers
- OSV · UbuntuEcosystem advisory · calculated7.1HighCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:HDiffers
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.38%
Chance of exploitation in the next 30 days
Percentile
30%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.38% on 22-09-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu109 products
- linux< 5.4.0-144.161 | < 5.15.0-67.74
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 5.4.0-1097.105 | < 5.15.0-1031.35
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 0b8fb8235be8be99a197e8d948fc0a2df8dc261a, < f5c2ec288a865dbe3706b09bed12302e9f6d696b | ≥ 0b8fb8235be8be99a197e8d948fc0a2df8dc261a, < 9e6b79a3cd17620d467311b30d56f2648f6880aa | ≥ 0b8fb8235be8be99a197e8d948fc0a2df8dc261a, < 88a6fe3707888bd1893e9741157a7035c4159ab6 | ≥ 0b8fb8235be8be99a197e8d948fc0a2df8dc261a, < 391cb872553627bdcf236c03ee7d5adb275e37e1 | ≥ 0b8fb8235be8be99a197e8d948fc0a2df8dc261a, < 9f16b5c82a025cd4c864737409234ddc44fb166a | 5.1
- linux_kernel≥ 5.1, < 5.4.226 | ≥ 5.5, < 5.10.158 | ≥ 5.11, < 5.15.82 | ≥ 5.16, < 6.0.12 | 6.1:rc1 | 6.1:rc2 | 6.1:rc3 | 6.1:rc4 | 6.1:rc5 | 6.1:rc6 | 6.1:rc7
Debian1 product
- linux< 6.0.12-1
3 vendors · 112 products
