CVE-2022-27438: Caphyon Ltd Advanced Installer 19.3 and earlier and many products that use the updater from Advanced Installer

This week

HIGH 8.1REMOTEUPGRADEDOWNGRADEDOWNGRADE

CVE-2022-27438 is a high-severity flaw (CVSS 8.1) affecting advanced installer, call flow designer, crm template generator. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Caphyon Ltd Advanced Installer 19.3 and earlier and many products that use the updater from Advanced Installer (Advanced Updater) are affected by a remote code execution vulnerability via the CustomDetection parameter in the update check function. To exploit this vulnerability, a user must start an affected installation to trigger the update check.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	8.1 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	2.1% (top 18%)
CISA exploited list	No
Weakness	CWE-494
Published	2022-06-06
Last modified	2026-07-09

Publisher (CNA): MITRE · Vendor: 3cx · boom · caphyon · codesector

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

Am I affected?

Timeline

2022-06-06 23:15 UTCPublished CVE record published
2026-07-09 01:17 UTCUpdated Record last modified

caphyon advanced installer UPGRADE

Affected: < 19.4

Fixed in: 19.4

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy advanced-installer || rpm -q advanced-installer || advanced-installer --version

2. UPGRADE to 19.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade advanced-installer

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade advanced-installer

Note

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

3cx call flow designer DOWNGRADE

Affected: 18.2.13

Fixed in: no fixed release known

Safe to downgrade to: a release before 18.2.13

1. Check installed version

apt-cache policy call-flow-designer || rpm -q call-flow-designer || call-flow-designer --version

2. No fixed release: DOWNGRADE to a release before 18.2.13 (Debian / Ubuntu)

apt-cache madison call-flow-designer sudo apt install call-flow-designer=<VERSION_BEFORE_18.2.13> sudo apt-mark hold call-flow-designer

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

dnf --showduplicates list call-flow-designer sudo dnf downgrade call-flow-designer-<VERSION_BEFORE_18.2.13> sudo dnf versionlock add call-flow-designer

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.

3cx crm template generator DOWNGRADE

Affected: 2.1.23

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.1.23

1. Check installed version

apt-cache policy crm-template-generator || rpm -q crm-template-generator || crm-template-generator --version

2. No fixed release: DOWNGRADE to a release before 2.1.23 (Debian / Ubuntu)

apt-cache madison crm-template-generator sudo apt install crm-template-generator=<VERSION_BEFORE_2.1.23> sudo apt-mark hold crm-template-generator

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

dnf --showduplicates list crm-template-generator sudo dnf downgrade crm-template-generator-<VERSION_BEFORE_2.1.23> sudo dnf versionlock add crm-template-generator

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.

boom boomtv streamer portal DOWNGRADE

Affected: 2.2.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.2.1

1. Check installed version

apt-cache policy boomtv-streamer-portal || rpm -q boomtv-streamer-portal || boomtv-streamer-portal --version

2. No fixed release: DOWNGRADE to a release before 2.2.1 (Debian / Ubuntu)

apt-cache madison boomtv-streamer-portal sudo apt install boomtv-streamer-portal=<VERSION_BEFORE_2.2.1> sudo apt-mark hold boomtv-streamer-portal

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

dnf --showduplicates list boomtv-streamer-portal sudo dnf downgrade boomtv-streamer-portal-<VERSION_BEFORE_2.2.1> sudo dnf versionlock add boomtv-streamer-portal

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.

codesector direct folders DOWNGRADE

Affected: 4.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.0

1. Check installed version

apt-cache policy direct-folders || rpm -q direct-folders || direct-folders --version

2. No fixed release: DOWNGRADE to a release before 4.0 (Debian / Ubuntu)

apt-cache madison direct-folders sudo apt install direct-folders=<VERSION_BEFORE_4.0> sudo apt-mark hold direct-folders

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

dnf --showduplicates list direct-folders sudo dnf downgrade direct-folders-<VERSION_BEFORE_4.0> sudo dnf versionlock add direct-folders

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.

codesector teracopy DOWNGRADE

Affected: 3.8.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.8.5

1. Check installed version

apt-cache policy teracopy || rpm -q teracopy || teracopy --version

2. No fixed release: DOWNGRADE to a release before 3.8.5 (Debian / Ubuntu)

apt-cache madison teracopy sudo apt install teracopy=<VERSION_BEFORE_3.8.5> sudo apt-mark hold teracopy

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

dnf --showduplicates list teracopy sudo dnf downgrade teracopy-<VERSION_BEFORE_3.8.5> sudo dnf versionlock add teracopy

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-2022-27438?

advanced installer: upgrade to 19.4; call flow designer: downgrade or apply the listed mitigation; crm template generator: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-27438 being exploited?

CVE-2022-27438 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-2022-27438 affect?

CVE-2022-27438 affects advanced installer, call flow designer, crm template generator. Severity is high (CVSS 8.1). Caphyon Ltd Advanced Installer 19.3 and earlier and many products that use the updater from Advanced Installer (Advanced Updater) are affected by a remote code execution vulnerability via the CustomDetection parameter in the update check fu

How urgent is CVE-2022-27438?

Priority 59/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2023-25396 HIGH 7.8 UPGRADE Privilege escalation in the MSI repair functionality in Caphyon Advanced Installer 20.0 and below allows attac
CVE-2022-4956 HIGH 7.8 DOWNGRADE A vulnerability classified as critical has been found in Caphyon Advanced Installer 19.7

References

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