CVE-2023-41137: Symmetric encryption used to protect messages between the AppsAnywhere server and client can be broken by reve

Routine

HIGH 8.0DOWNGRADEDOWNGRADE

CVE-2023-41137 is a high-severity flaw (CVSS 8.0) affecting appsanywhere client, appsanywhere client. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Symmetric encryption used to protect messages between the AppsAnywhere server and client can be broken by reverse engineering the client and used to impersonate the AppsAnywhere server.

Why this priority

High severity

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

Risk facts

CVSS score	8.0 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.3% (top 72%)
CISA exploited list	No
Weakness	CWE-321, CWE-798
Published	2023-11-09
Last modified	2026-06-17

Publisher (CNA): AppCheck Ltd. · Vendor: appsanywhere

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

Am I affected?

Timeline

2023-11-09 15:15 UTCPublished CVE record published
2026-06-17 06:20 UTCUpdated Record last modified

appsanywhere appsanywhere client DOWNGRADE

Affected: 1.4.0 · 1.4.1 · 1.5.1 · 1.6.0 · 2.0.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.4.0

1. Check installed version

apt-cache policy appsanywhere-client || rpm -q appsanywhere-client || appsanywhere-client --version

2. No fixed release: DOWNGRADE to a release before 1.4.0 (Debian / Ubuntu)

apt-cache madison appsanywhere-client sudo apt install appsanywhere-client=<VERSION_BEFORE_1.4.0> sudo apt-mark hold appsanywhere-client

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

dnf --showduplicates list appsanywhere-client sudo dnf downgrade appsanywhere-client-<VERSION_BEFORE_1.4.0> sudo dnf versionlock add appsanywhere-client

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.

appsanywhere appsanywhere client DOWNGRADE

Affected: 1.4.0 · 1.4.1 · 1.5.1 · 1.5.2 · 1.6.0 · 2.0.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.4.0

1. Check installed version

apt-cache policy appsanywhere-client || rpm -q appsanywhere-client || appsanywhere-client --version

2. No fixed release: DOWNGRADE to a release before 1.4.0 (Debian / Ubuntu)

apt-cache madison appsanywhere-client sudo apt install appsanywhere-client=<VERSION_BEFORE_1.4.0> sudo apt-mark hold appsanywhere-client

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

dnf --showduplicates list appsanywhere-client sudo dnf downgrade appsanywhere-client-<VERSION_BEFORE_1.4.0> sudo dnf versionlock add appsanywhere-client

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-2023-41137?

appsanywhere client: downgrade or apply the listed mitigation; appsanywhere client: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-41137 being exploited?

CVE-2023-41137 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-2023-41137 affect?

CVE-2023-41137 affects appsanywhere client, appsanywhere client. Severity is high (CVSS 8.0). Symmetric encryption used to protect messages between the AppsAnywhere server and client can be broken by reverse engineering the client and used to impersonate the AppsAnywhere server.

How urgent is CVE-2023-41137?

Priority 35/100. High severity

Related CVEs

CVE-2023-41138 HIGH 7.5 DOWNGRADE The AppsAnywhere macOS client-privileged helper can be tricked into executing arbitrary commands with elevated

References

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