Realtek USB FE/1GbE/2.5GbE/5GbE NIC Family - Buffer Overflow
Priority LOW 28CWE-120Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.
Summary
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.
Why it matters now
EPSS 0.00241 15th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Realtek | USB FE/1GbE/2.5GbE/5GbE NIC Family | 10.28 – 10.39 | — | No fix listed | CNA |
| Realtek | USB FE/1GbE/2.5GbE/5GbE NIC Family | 8.49 – 8.60 | — | No fix listed | CNA |
| Realtek | USB FE/1GbE/2.5GbE/5GbE NIC Family | 7.42 – 7.53 | — | No fix listed | CNA |
- USB FE/1GbE/2.5GbE/5GbE NIC Family VendorRealtek Affected 10.28 – 10.39 Fixed in — No fix listed CNA
- USB FE/1GbE/2.5GbE/5GbE NIC Family VendorRealtek Affected 8.49 – 8.60 Fixed in — No fix listed CNA
- USB FE/1GbE/2.5GbE/5GbE NIC Family VendorRealtek Affected 7.42 – 7.53 Fixed in — No fix listed CNA
CPE configurations NVD · 14
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:realtek:rtl8156_firmware:*:*:*:*:*:*:*:* | 7.42 – 7.53; 8.49 – 8.60; 10.28 to before 10.50 | Vulnerable | Realtek |
| cpe:2.3:h:realtek:rtl8156:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Realtek |
| cpe:2.3:o:realtek:rtl8156b_firmware:*:*:*:*:*:*:*:* | 7.42 – 7.53; 8.49 – 8.60; 10.28 to before 10.50 | Vulnerable | Realtek |
| cpe:2.3:h:realtek:rtl8156b:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Realtek |
| cpe:2.3:o:realtek:rtl8153_firmware:*:*:*:*:*:*:*:* | 7.42 – 7.53; 8.49 – 8.60; 10.28 to before 10.50 | Vulnerable | Realtek |
| cpe:2.3:h:realtek:rtl8153:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Realtek |
| cpe:2.3:o:realtek:rtl8153b_firmware:*:*:*:*:*:*:*:* | 7.42 – 7.53; 8.49 – 8.60; 10.28 to before 10.50 | Vulnerable | Realtek |
| cpe:2.3:h:realtek:rtl8153b:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Realtek |
| cpe:2.3:o:realtek:rtl8154_firmware:*:*:*:*:*:*:*:* | 7.42 – 7.53; 8.49 – 8.60; 10.28 to before 10.50 | Vulnerable | Realtek |
| cpe:2.3:h:realtek:rtl8154:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Realtek |
- cpe:2.3:o:realtek:rtl8156_firmware:*:*:*:*:*:*:*:* Versions 7.42 – 7.53; 8.49 – 8.60; 10.28 to before 10.50 Vulnerable ·Realtek
- cpe:2.3:h:realtek:rtl8156:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Realtek
- cpe:2.3:o:realtek:rtl8156b_firmware:*:*:*:*:*:*:*:* Versions 7.42 – 7.53; 8.49 – 8.60; 10.28 to before 10.50 Vulnerable ·Realtek
- cpe:2.3:h:realtek:rtl8156b:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Realtek
- cpe:2.3:o:realtek:rtl8153_firmware:*:*:*:*:*:*:*:* Versions 7.42 – 7.53; 8.49 – 8.60; 10.28 to before 10.50 Vulnerable ·Realtek
- cpe:2.3:h:realtek:rtl8153:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Realtek
- cpe:2.3:o:realtek:rtl8153b_firmware:*:*:*:*:*:*:*:* Versions 7.42 – 7.53; 8.49 – 8.60; 10.28 to before 10.50 Vulnerable ·Realtek
- cpe:2.3:h:realtek:rtl8153b:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Realtek
- cpe:2.3:o:realtek:rtl8154_firmware:*:*:*:*:*:*:*:* Versions 7.42 – 7.53; 8.49 – 8.60; 10.28 to before 10.50 Vulnerable ·Realtek
- cpe:2.3:h:realtek:rtl8154:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Realtek
Show 4 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:realtek:rtl8154b_firmware:*:*:*:*:*:*:*:* | 7.42 – 7.53; 8.49 – 8.60; 10.28 to before 10.50 | Vulnerable | Realtek |
| cpe:2.3:h:realtek:rtl8154b:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Realtek |
| cpe:2.3:o:realtek:rtl8152b_firmware:*:*:*:*:*:*:*:* | 7.42 – 7.53; 8.49 – 8.60; 10.28 to before 10.50 | Vulnerable | Realtek |
| cpe:2.3:h:realtek:rtl8152b:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Realtek |
- cpe:2.3:o:realtek:rtl8154b_firmware:*:*:*:*:*:*:*:* Versions 7.42 – 7.53; 8.49 – 8.60; 10.28 to before 10.50 Vulnerable ·Realtek
- cpe:2.3:h:realtek:rtl8154b:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Realtek
- cpe:2.3:o:realtek:rtl8152b_firmware:*:*:*:*:*:*:*:* Versions 7.42 – 7.53; 8.49 – 8.60; 10.28 to before 10.50 Vulnerable ·Realtek
- cpe:2.3:h:realtek:rtl8152b:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Realtek
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2022-21742
- 2026-10-03 Alias added: GHSA-5rv3-34jj-v83f
References
Sources
- CVE-2022-21742 · CVE Program
- CVE-2022-21742 · NVD
- FIRST EPSS
- GHSA-5rv3-34jj-v83f · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences