How severe is CVE-2021-32935?

CVE-2021-32935 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-32935 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-32935?

CVE-2021-32935 affects Cognex In-sight Opc Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-32935?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-32935 published?

CVE-2021-32935 was published on 2022-05-23 and last updated on 2026-06-17.

CVE-2021-32935

CVE-2021-32935 is a high-severity vulnerability in Cognex In-sight Opc Server with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-502.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 10.0
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
Affected product: Cognex In-sight Opc Server
Published: 2022-05-23
Last modified: 2026-06-17

Description

The affected Cognex product, the In-Sight OPC Server versions v5.7.4 (96) and prior, deserializes untrusted data, which could allow a remote attacker access to system level permission commands and local privilege escalation.

Frequently asked questions

What is CVE-2021-32935?: The affected Cognex product, the In-Sight OPC Server versions v5.7.4 (96) and prior, deserializes untrusted data, which could allow a remote attacker access to system level permission commands and local privilege escalation.
How severe is CVE-2021-32935?: CVE-2021-32935 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-32935 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-32935?: CVE-2021-32935 affects Cognex In-sight Opc Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-32935?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-32935 published?: CVE-2021-32935 was published on 2022-05-23 and last updated on 2026-06-17.

References

https://www.cisa.gov/uscert/ics/advisories/icsa-21-224-01

Affected products (1)

cpe:2.3:a:cognex:in-sight_opc_server:*:*:*:*:*:*:*:*

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