What’s Vulnerable › Vulnerabilities

CVE-2021-32959: AVEVA SuiteLink Server Buffer Overflow

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-09-23 · updated 2026-06-17
• Weakness: CWE-122

Description

Heap-based buffer overflow in SuiteLink server while processing commands 0x05/0x06

Affected products

• AVEVA Suitelink: before 3.2.002 — fixed in 3.2.002

How to fix

Upgrade to a fixed version: AVEVA Suitelink 3.2.002. Check the vendor advisory for mitigations.

References

• https://www.aveva.com/content/dam/aveva/documents/support/cyber-security-updates/SecurityBulletin_AVEVA-2021-003.pdf
• https://www.aveva.com/content/dam/aveva/documents/support/cyber-security-updates/SecurityBulletin_AVEVA-2021-003.pdf

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