CVE-2021-36924 json
RtsUpx.sys in Realtek RtsUpx USB Utility Driver for Camera/Hub/Audio through 1.14.0.0 allows local low-privileged users to achieve a pool o…
published 5y ago modified 4mo ago also EUVD-2021-23500
- cvss
- 7.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 11%
- public exploits
- 0
- none known
Summary
RtsUpx.sys in Realtek RtsUpx USB Utility Driver for Camera/Hub/Audio through 1.14.0.0 allows local low-privileged users to achieve a pool overflow (leading to Escalation of Privileges, Denial of Service, and Code Execution) via a crafted Device IO Control packet to a device.
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0.21% chance of exploitation in the next 30 days, higher than 11% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition
References
-
realtek.com
/images/safe-report/Realtek_RtsUpx_Security_Advisory_Report.pdf
vendor-advisory
-
sentinelone.com
/resources/category/report/
not-applicable
Sources
- CVE List CVE-2021-36924
- NVD CVE-2021-36924
Fencer Intel 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.