CVE-2020-13178: A function in the Teradici PCoIP Standard Agent for Windows and Graphics Agent for Windows prior to version 20

Q: How do I fix CVE-2020-13178?

graphics agent: upgrade to 20.04.1; pcoip standard agent: upgrade to 20.04.1. Exact commands for each OS are on this page.

Q: Is CVE-2020-13178 being exploited?

CVE-2020-13178 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2020-13178 affect?

CVE-2020-13178 affects graphics agent, pcoip standard agent. Severity is medium (CVSS 6.7). A function in the Teradici PCoIP Standard Agent for Windows and Graphics Agent for Windows prior to version 20.04.1 does not properly validate the signature of an external binary, which could allow an attacker to gain elevated privileges vi

Q: How urgent is CVE-2020-13178?

Priority 27/100. No elevated risk signals yet.

Routine

MEDIUM 6.7UPGRADEUPGRADE

CVE-2020-13178 is a medium-severity flaw (CVSS 6.7) affecting graphics agent, pcoip standard agent. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A function in the Teradici PCoIP Standard Agent for Windows and Graphics Agent for Windows prior to version 20.04.1 does not properly validate the signature of an external binary, which could allow an attacker to gain elevated privileges via execution in the context of the PCoIP Agent process.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.7 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.2% (top 86%)
CISA exploited list	No
Weakness	CWE-345
Published	2020-08-11
Last modified	2026-06-17

Publisher (CNA): Teradici Corporation · Vendor: teradici

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2020-08-11 18:15 UTCPublished CVE record published
2026-06-17 02:52 UTCUpdated Record last modified

teradici graphics agent UPGRADE

Affected: < 20.04.1

Fixed in: 20.04.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy graphics-agent || rpm -q graphics-agent || graphics-agent --version

2. UPGRADE to 20.04.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade graphics-agent

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade graphics-agent

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

teradici pcoip standard agent UPGRADE

Affected: < 20.04.1

Fixed in: 20.04.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy pcoip-standard-agent || rpm -q pcoip-standard-agent || pcoip-standard-agent --version

2. UPGRADE to 20.04.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade pcoip-standard-agent

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade pcoip-standard-agent

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2020-13178?

graphics agent: upgrade to 20.04.1; pcoip standard agent: upgrade to 20.04.1. Exact commands for each OS are on this page.

Is CVE-2020-13178 being exploited?

CVE-2020-13178 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-2020-13178 affect?

CVE-2020-13178 affects graphics agent, pcoip standard agent. Severity is medium (CVSS 6.7). A function in the Teradici PCoIP Standard Agent for Windows and Graphics Agent for Windows prior to version 20.04.1 does not properly validate the signature of an external binary, which could allow an attacker to gain elevated privileges vi

How urgent is CVE-2020-13178?

Priority 27/100. No elevated risk signals yet.

Software pages

Windows vulnerabilities

Related CVEs

CVE-2020-13179 MEDIUM 5.5 UPGRADE UPGRADE Broker Protocol messages in Teradici PCoIP Standard Agent for Windows and Graphics Agent for Windows prior to
CVE-2020-13177 HIGH 7.8 UPGRADE UPGRADE The support bundler in Teradici PCoIP Standard Agent for Windows and Graphics Agent for Windows versions prior

References

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