How severe is CVE-2021-25699?

CVE-2021-25699 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-25699 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-25699?

CVE-2021-25699 affects Teradici Pcoip Client. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-25699?

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-2021-25699 published?

CVE-2021-25699 was published on 2021-07-21 and last updated on 2026-06-17.

CVE-2021-25699

CVE-2021-25699 is a high-severity vulnerability in Teradici Pcoip Client with a CVSS 3.x base score of 7.8. 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-426.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 4.4
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-426
Affected product: Teradici Pcoip Client
Published: 2021-07-21
Last modified: 2026-06-17

Description

The OpenSSL component of the Teradici PCoIP Software Client prior to version 21.07.0 was compiled without the no-autoload-config option, which allowed an attacker to elevate to the privileges of the running process via placing a specially crafted dll in a build configuration directory.

Frequently asked questions

What is CVE-2021-25699?: The OpenSSL component of the Teradici PCoIP Software Client prior to version 21.07.0 was compiled without the no-autoload-config option, which allowed an attacker to elevate to the privileges of the running process via placing a specially crafted dll in a build configuration directory.
How severe is CVE-2021-25699?: CVE-2021-25699 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-25699 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-25699?: CVE-2021-25699 affects Teradici Pcoip Client. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-25699?: 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-2021-25699 published?: CVE-2021-25699 was published on 2021-07-21 and last updated on 2026-06-17.

References

https://advisory.teradici.com/security-advisories/102/

Affected products (1)

cpe:2.3:a:teradici:pcoip_client:*:*:*:*:*:*:*:*

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