Vulnerability in Realtek RtsPer driver for PCIe Card Reader (RtsPer.sys) before 10.0.22000.21355 and Realtek RtsUer driver for USB Card Rea…

published 2024-07-02 2 y ago modified 2026-07-09 4 mo ago also EUVD-2022-30150

cvss: 7.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 8%
public exploits: 0; none known

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 allows writing to kernel memory beyond the SystemBuffer of the IRP.

Patch / fix

fixed in 1

realtek rtsper_pcie_card_reader_driver 10.0.22000.21355

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: total
Assessed: 2 y ago (2024-10-28)

Exploit prediction

0.19% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

realtek rtsper_pcie_card_reader_driver

Classification

Weakness

CWE-787 Out-of-bounds Write

References

realtek.com /images/safe-report/Realtek_RtsPer_RtsUer_Security_Advisory_Report.pdf
vendor-advisory
gist.github.com /zwclose/feb16f1424779a61cb1d9f6d5681408a
third-party-advisory
zwclose.github.io /2024/10/14/rtsper1.html

Sources

CVE List CVE-2022-25480
NVD CVE-2022-25480

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary