CVE-2022-21742: realtek rtl8152b_firmware Classic Buffer Overflow
CVSS: 6.5v3.1MediumModified
Published 20-06-2022Last modified 17-09-2024
Vulnerability summary
CVE-2022-21742 is a medium (CVSS 6.5) Classic Buffer Overflow vulnerability in realtek rtl8152b_firmware. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 14.2% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.1 (NVD)EPSS score
0.24%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 20-06-2022PublishedVulnerability first disclosed.
- 17-09-2024Last modifiedVulnerability information updated.
Description
Realtek USB driver has a buffer overflow vulnerability due to insufficient parameter length verification in the API function. An unauthenticated LAN attacker can exploit this vulnerability to disrupt services.
CVSS metrics
3 scores · 2 sources · 2 versionsMedium 6.5Preferred score · NVD (NIST)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSources2 sources · 6.2–6.5
- CVE.orgCNA6.2MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HDiffers
Low 3.3Preferred score · NVD (NIST)
AV:A/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
0.24%
Chance of exploitation in the next 30 days
Percentile
14%
Versus all other CVEs
30-day change
0.00 pp
From 0.24% on 20-09-2026
20-09-202620-10-2026
EPSS score0.24%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Realtek8 products
- rtl8152b_firmware≥ 7.42, ≤ 7.53 | ≥ 8.49, ≤ 8.60 | ≥ 10.28, < 10.50
- rtl8153_firmware≥ 7.42, ≤ 7.53 | ≥ 8.49, ≤ 8.60 | ≥ 10.28, < 10.50
- rtl8153b_firmware≥ 7.42, ≤ 7.53 | ≥ 8.49, ≤ 8.60 | ≥ 10.28, < 10.50
- rtl8154_firmware≥ 7.42, ≤ 7.53 | ≥ 8.49, ≤ 8.60 | ≥ 10.28, < 10.50
- rtl8154b_firmware≥ 7.42, ≤ 7.53 | ≥ 8.49, ≤ 8.60 | ≥ 10.28, < 10.50
1 vendor · 8 products