CVE-2021-39536
An issue was discovered in libxsmm through v1.16.1-93. The JIT code has a heap-based buffer...
An issue was discovered in libxsmm through v1.16.1-93. The JIT code has a heap-based buffer overflow.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
An issue was discovered in libxsmm through v1.16.1-93. The JIT code has a heap-based buffer overflow.
- Record
CVE-2021-39536- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-787
- Updated
- 2026-11-02
CVE List No score
An issue was discovered in libxsmm through v1.16.1-93. The JIT code has a heap-based buffer overflow.
- Record
CVE-2021-39536- Updated
- 2026-11-02
EUVDEUVD-2021-25893 No score
An issue was discovered in libxsmm through v1.16.1-93. The JIT code has a heap-based buffer overflow.
- Record
EUVD-2021-25893- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-h9fc-rg7x-48xg No score
An issue was discovered in libxsmm through v1.16.1-93. The JIT code has a heap-based buffer...
An issue was discovered in libxsmm through v1.16.1-93. The JIT code has a heap-based buffer overflow.
- Record
GHSA-h9fc-rg7x-48xg- Weakness
- CWE-787
- Updated
- 2026-11-02
OSV
An issue was discovered in libxsmm through v1.16.1-93. The JIT code has a heap-based buffer overflow.
- Record
CVE-2021-39536- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2021-39536
An issue was discovered in libxsmm through v1.16.1-93. The JIT code has a heap-based buffer overflow.
- Record
DEBIAN-CVE-2021-39536- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-39536 is a high vulnerability (CVSS 8.8) in Libxsmm Project Libxsmm, published September 20, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.06%, the 64th percentile. Fixed in libxsmm 1.17-1.