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CVE-2022-25479

22
FAUCET Score

CVE-2022-25479 is a kernel memory leakage vulnerability affecting Realtek RtsPer and RtsUer card reader drivers. This local, low-complexity vulnerability allows an authenticated attacker to leak kernel memory from both the stack and heap, potentially leading to denial of service. While rated as MEDIUM severity (CVSS 5.5), there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 10.0.22000.21355CPE matchmatch criteria
cpe:2.3:a:realtek:rtsper:*:*:*:*:*:*:*:*
< 10.0.22000.31274CPE matchmatch criteria
cpe:2.3:a:realtek:rtsuer:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.63%
Probability of exploitation in next 30 days
EPSS Percentile
46.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0063 is in the 94th percentile among its peer group of 15,938 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

gist.github.com / zwclose/feb16f1424779a61cb1d9f6d5681408a
Third Party Advisory
realtek.com / images/safe-report/Realtek_RtsPer_RtsUer_Security_Advisory_Report.pdf
Vendor Advisory
zwclose.github.io / 2024/10/14/rtsper1.html