CVE-2021-32959
AVEVA SuiteLink Server Buffer Overflow
Heap-based buffer overflow in SuiteLink server while processing commands 0x05/0x06
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
AVEVA SuiteLink Server Buffer Overflow
Heap-based buffer overflow in SuiteLink server while processing commands 0x05/0x06
- Record
CVE-2021-32959- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-122
- Updated
- 2026-11-02
EUVDEUVD-2021-19680
Heap-based buffer overflow in SuiteLink server while processing commands 0x05/0x06
- Record
EUVD-2021-19680- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-37f5-m753-pjhvNo score
Heap-based buffer overflow in SuiteLink server while processing commands 0x05/0x06
Heap-based buffer overflow in SuiteLink server while processing commands 0x05/0x06
- Record
GHSA-37f5-m753-pjhv- Weakness
- CWE-122
- Updated
- 2026-11-02
NVD
Heap-based buffer overflow in SuiteLink server while processing commands 0x05/0x06
- Record
CVE-2021-32959- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-122
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-32959 is a high vulnerability (CVSS 8.1) in Aveva Suitelink, published September 23, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.94%, the 61st percentile. No source names a fixed version.