CVE-2021-35451: In Teradici PCoIP Management Console-Enterprise 20.07.0, an unauthenticated user can inject arbitrary text int

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MEDIUM 6.1DOWNGRADE

CVE-2021-35451 is a medium-severity flaw (CVSS 6.1) affecting pcoip management console. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In Teradici PCoIP Management Console-Enterprise 20.07.0, an unauthenticated user can inject arbitrary text into user browser via the Web application.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.7% (top 46%)
CISA exploited list	No
Weakness	CWE-79
Published	2021-07-07
Last modified	2026-07-09

Publisher (CNA): MITRE · Vendor: teradici

Last updated 2026-07-09 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-07-07 14:15 UTCPublished CVE record published
2026-07-09 01:16 UTCUpdated Record last modified

teradici pcoip management console DOWNGRADE

Affected: 20.07.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 20.07.0

1. Check installed version

apt-cache policy pcoip-management-console || rpm -q pcoip-management-console || pcoip-management-console --version

2. No fixed release: DOWNGRADE to a release before 20.07.0 (Debian / Ubuntu)

apt-cache madison pcoip-management-console sudo apt install pcoip-management-console=<VERSION_BEFORE_20.07.0> sudo apt-mark hold pcoip-management-console

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list pcoip-management-console sudo dnf downgrade pcoip-management-console-<VERSION_BEFORE_20.07.0> sudo dnf versionlock add pcoip-management-console

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-35451?

pcoip management console: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-35451 being exploited?

CVE-2021-35451 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-35451 affect?

CVE-2021-35451 affects pcoip management console. Severity is medium (CVSS 6.1). In Teradici PCoIP Management Console-Enterprise 20.07.0, an unauthenticated user can inject arbitrary text into user browser via the Web application.

How urgent is CVE-2021-35451?

Priority 40/100. Public exploit reference

Related CVEs

CVE-2017-20121 HIGH 7.8 DOWNGRADE A vulnerability was found in Teradici Management Console 2.2.0

References

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