CVE-2020-26942: An issue discovered in Axigen Mail Server 10.3.x before 10.3.1.27 and 10.3.2.x before 10.3.3.1 allows unauthen

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CRITICAL 9.1REMOTEUPGRADE

CVE-2020-26942 is a critical-severity flaw (CVSS 9.1) affecting axigen mail server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue discovered in Axigen Mail Server 10.3.x before 10.3.1.27 and 10.3.2.x before 10.3.3.1 allows unauthenticated attackers to submit a setAdminPassword operation request, subsequently setting a new arbitrary password for the admin account.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.1 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 60%)
CISA exploited list	No
Weakness	CWE-306, CWE-284
Published	2024-03-21
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: axigen

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

Am I affected?

Timeline

2024-03-21 02:36 UTCPublished CVE record published
2026-06-17 03:08 UTCUpdated Record last modified

axigen axigen mail server UPGRADE

Affected: >= 10.3.0 and < 10.3.1.27 · >= 10.3.2.0 and < 10.3.3.1

Fixed in: 10.3.1.27, 10.3.3.1

Safe to downgrade to: a release before 10.3.0

1. Check installed version

apt-cache policy axigen-mail-server || rpm -q axigen-mail-server || axigen-mail-server --version

2. UPGRADE to 10.3.1.27 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade axigen-mail-server

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade axigen-mail-server

Note

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

3. If no update is available yet, DOWNGRADE to a release before 10.3.0 (Debian / Ubuntu)

apt-cache madison axigen-mail-server sudo apt install axigen-mail-server=<VERSION_BEFORE_10.3.0> sudo apt-mark hold axigen-mail-server

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list axigen-mail-server sudo dnf downgrade axigen-mail-server-<VERSION_BEFORE_10.3.0> sudo dnf versionlock add axigen-mail-server

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-2020-26942?

axigen mail server: upgrade to 10.3.1.27, 10.3.3.1. Exact commands for each OS are on this page.

Is CVE-2020-26942 being exploited?

CVE-2020-26942 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-2020-26942 affect?

CVE-2020-26942 affects axigen mail server. Severity is critical (CVSS 9.1). An issue discovered in Axigen Mail Server 10.3.x before 10.3.1.27 and 10.3.2.x before 10.3.3.1 allows unauthenticated attackers to submit a setAdminPassword operation request, subsequently setting a new arbitrary password for the admin acco

How urgent is CVE-2020-26942?

Priority 47/100. Critical severity; Remotely exploitable, no login, no user action

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References

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