Buffer overflow in Winmagic Securedoc
CVE-2020-11520
The SDDisk2k.sys driver of WinMagic SecureDoc v8.5 and earlier allows local users to write to arbitrary kernel memory addresses because the IOCTL dispatcher lacks pointer validation. Exploiting this vulnerability results in privileged code execution.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (33.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 33.9% 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
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.winmagic.com/support/release-notes/securedoc-v8-5-sr2/ (Release Notes, Vendor Advisory)
- www.winmagic.com/support/release-notes/securedoc-v8-5-sr2-hf1 (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-11520?
- CVE-2020-11520 is a high-severity vulnerability in Winmagic Securedoc, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2020-06-22.
- How severe is CVE-2020-11520?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2020-11520 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.