What is CVE-2022-25478?

CVE-2022-25478 is a high-severity vulnerability in Realtek Rtsper. CVSS score: 7.8/10. Published 2024-07-02.

How severe is CVE-2022-25478?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2022-25478 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Realtek Rtsper

CVE-2022-25478

Vulnerability in Realtek RtsPer driver for PCIe Card Reader (RtsPer.sys) before 10.0.22000.21355 and Realtek RtsUer driver for USB Card Reader (RtsUer.sys) before 10.0.22000.31274 provides read and write access to the PCI configuration space of the device.

Published 2024-07-02 · last modified 2026-07-09.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (7.6th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 8th percentile — 7.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

Public proof-of-concept exploits

zwclose/realteksd

References

af854a3a-2127-422b-91ae-364da2661108 (Broken Link)
www.realtek.com/images/safe-report/Realtek_RtsPer_RtsUer_Security_Advisory_Repo… (Vendor Advisory)
gist.github.com/zwclose/feb16f1424779a61cb1d9f6d5681408a (Third Party Advisory)
zwclose.github.io/2024/10/14/rtsper1.html

Frequently asked questions

What is CVE-2022-25478?: CVE-2022-25478 is a high-severity vulnerability in Realtek Rtsper. CVSS score: 7.8/10. Published 2024-07-02.
How severe is CVE-2022-25478?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2022-25478 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.