Realtek High definition audio Windows driver crashed
Summary
| CVE | CVE-2021-32537 |
|---|---|
| State | PUBLISHED |
| Assigner | twcert |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2021-07-07 14:15:12 UTC |
| Updated | 2026-10-08 22:17:09 UTC |
| Description | Realtek HAD contains a driver crashed vulnerability which allows local side attackers to send a special string to the kernel driver in a user’s mode. Due to unexpected commands, the kernel driver will cause the system crashed. |
Risk And Classification
Primary CVSS: v3.1 6.5 MEDIUM from [email protected]
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
EPSS: 0.004400000 probability, percentile 0.379650000 (date 2026-10-26)
Problem Types: CWE-119 | None
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 6.5 | MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H |
| 3.1 | CNA | DECLARED | 6.5 | MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H |
| 2.0 | [email protected] | Primary | 4.9 | AV:L/AC:L/Au:N/C:N/I:N/A:C |
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
ChangedConfidentiality
NoneIntegrity
NoneAvailability
HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
CVSS v2.0 Breakdown
Access Vector
LocalAccess Complexity
LowAuthentication
NoneConfidentiality
NoneIntegrity
NoneAvailability
CompleteAV:L/AC:L/Au:N/C:N/I:N/A:C
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Realtek | Hda Driver | All | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Realtek | HDA Driver | affected 8155 9150 custom | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Realtek RTKVHD64.sys Out-Of-Bounds Access ≈ Packet Storm | af854a3a-2127-422b-91ae-364da2661108 | packetstormsecurity.com | Exploit, Third Party Advisory, VDB Entry |
| TWCERT/CC台灣電腦網路危機處理暨協調中心-Realtek High definition audio Windows driver crashed | af854a3a-2127-422b-91ae-364da2661108 | www.twcert.org.tw | Third Party Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Realtek (en)
Additional Advisory Data
Solutions
CNA: Update Realtek HDA driver version to 9152
There are currently no legacy QID mappings associated with this CVE.