How severe is CVE-2021-25693?

CVE-2021-25693 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-25693 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-25693?

CVE-2021-25693 affects Teradici Pcoip Agent. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-25693?

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-2021-25693 published?

CVE-2021-25693 was published on 2021-05-13 and last updated on 2026-06-17.

CVE-2021-25693

CVE-2021-25693 is a high-severity vulnerability in Teradici Pcoip Agent with a CVSS 3.x base score of 7.5. 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-476.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Teradici Pcoip Agent
Published: 2021-05-13
Last modified: 2026-06-17

Description

An attacker may cause a Denial of Service (DoS) in multiple versions of Teradici PCoIP Agent via a null pointer dereference.

Frequently asked questions

What is CVE-2021-25693?: An attacker may cause a Denial of Service (DoS) in multiple versions of Teradici PCoIP Agent via a null pointer dereference.
How severe is CVE-2021-25693?: CVE-2021-25693 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-25693 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-25693?: CVE-2021-25693 affects Teradici Pcoip Agent. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-25693?: 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-2021-25693 published?: CVE-2021-25693 was published on 2021-05-13 and last updated on 2026-06-17.

References

https://advisory.teradici.com/security-advisories/79/

Affected products (1)

cpe:2.3:a:teradici:pcoip_agent:*:*:*:*:*:*:*:*

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