How severe is CVE-2021-25701?

CVE-2021-25701 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-25701 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-25701?

CVE-2021-25701 affects Teradici Pcoip Client. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-25701?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-25701 published?

CVE-2021-25701 was published on 2021-07-21 and last updated on 2026-06-17.

CVE-2021-25701

CVE-2021-25701 is a medium-severity vulnerability in Teradici Pcoip Client with a CVSS 3.x base score of 5.5. 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-401.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 2.1
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-401
Affected product: Teradici Pcoip Client
Published: 2021-07-21
Last modified: 2026-06-17

Description

The fUSBHub driver in the PCoIP Software Client prior to version 21.07.0 had an error in object management during the handling of a variety of IOCTLs, which allowed an attacker to cause a denial of service.

Frequently asked questions

What is CVE-2021-25701?: The fUSBHub driver in the PCoIP Software Client prior to version 21.07.0 had an error in object management during the handling of a variety of IOCTLs, which allowed an attacker to cause a denial of service.
How severe is CVE-2021-25701?: CVE-2021-25701 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-25701 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-25701?: CVE-2021-25701 affects Teradici Pcoip Client. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-25701?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-25701 published?: CVE-2021-25701 was published on 2021-07-21 and last updated on 2026-06-17.

References

https://advisory.teradici.com/security-advisories/103/

Affected products (1)

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

More vulnerabilities in Teradici Pcoip Client

CVE-2021-25699 — High (CVSS 7.8): The OpenSSL component of the Teradici PCoIP Software Client prior to version 21.07.0 was compiled without the…
CVE-2019-20362 — High (CVSS 7.8): In Teradici PCoIP Agent before 19.08.1 and PCoIP Client before 19.08.3, an unquoted service path can cause execution of…

All CVEs affecting Teradici Pcoip Client →

Other CWE-401 (Missing Release of Memory after Effective Lifetime) vulnerabilities

CVE-2026-46289 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: lib/scatterlist: fix length calculations in…
CVE-2022-0742 — Critical (CVSS 9.1): Memory leak in icmp6 implementation in Linux Kernel 5.13+ allows a remote attacker to DoS a host by making it go…
CVE-2024-25450 — High (CVSS 8.8): imlib2 v1.9.1 was discovered to mishandle memory allocation in the function init_imlib_fonts().
CVE-2023-33718 — High (CVSS 8.8): mp4v2 v2.1.3 was discovered to contain a memory leak via MP4File::ReadString() at mp4file_io.cpp
CVE-2021-40633 — High (CVSS 8.8): A memory leak (out-of-memory) in gif2rgb in util/gif2rgb.c in giflib 5.1.4 allows remote attackers trigger an out of…
CVE-2021-3492 — High (CVSS 8.8): Shiftfs, an out-of-tree stacking file system included in Ubuntu Linux kernels, did not properly handle faults occurring…

Browse all CWE-401 (Missing Release of Memory after Effective Lifetime) vulnerabilities →