Buffer overflow in Realtek Hda Driver
CVE-2021-32537
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (35.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 35.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Realtek Hda Driver — versions 8155
- Realtek Hda Driver
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.twcert.org.tw/tw/cp-132-4813-7b578-1.html (Third Party Advisory)
- packetstormsecurity.com/files/163498/Realtek-RTKVHD64.sys-Out-Of-Bounds-Access… (Exploit, VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-32537?
- CVE-2021-32537 is a medium-severity vulnerability in Realtek Hda Driver, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.5/10. Published 2021-07-07.
- How severe is CVE-2021-32537?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2021-32537 known to be exploited?
- 12 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.