CVE-2026-8672: Use of default password vulnerability in syslink software AG Avantra on Linux, Windows allows Try Common or De

Q: How do I fix CVE-2026-8672?

avantra: upgrade to 25.3.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-8672 being exploited?

CVE-2026-8672 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-2026-8672 affect?

CVE-2026-8672 affects avantra. Severity is medium (CVSS 5.1). Use of default password vulnerability in syslink software AG Avantra on Linux, Windows allows Try Common or Default Usernames and Passwords. This issue affects Avantra: before 25.3.0.

Q: How urgent is CVE-2026-8672?

Priority 23/100. On your watchlist

Routine

MEDIUM 5.1WATCHLISTUPGRADE

CVE-2026-8672 is a medium-severity flaw (CVSS 5.1) affecting avantra. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Use of default password vulnerability in syslink software AG Avantra on Linux, Windows allows Try Common or Default Usernames and Passwords. This issue affects Avantra: before 25.3.0.

Why this priority

On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	5.1 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.1% (top 99%)
CISA exploited list	No
Weakness	CWE-1393
Published	2026-05-22
Last modified	2026-07-23

Publisher (CNA): Switzerland Government Common Vulnerability Program · Vendor: avantra

Last updated 2026-07-23 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-22 14:16 UTCPublished CVE record published
2026-07-23 16:10 UTCUpdated Record last modified

avantra avantra UPGRADE

Affected: < 25.3.0

Fixed in: 25.3.0

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 25.3.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade avantra

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade avantra

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-2026-8672?

avantra: upgrade to 25.3.0. Exact commands for each OS are on this page.

Is CVE-2026-8672 being exploited?

CVE-2026-8672 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-2026-8672 affect?

CVE-2026-8672 affects avantra. Severity is medium (CVSS 5.1). Use of default password vulnerability in syslink software AG Avantra on Linux, Windows allows Try Common or Default Usernames and Passwords. This issue affects Avantra: before 25.3.0.

How urgent is CVE-2026-8672?

Priority 23/100. On your watchlist

Software pages

Windows vulnerabilities

Related CVEs

CVE-2026-8670 CRITICAL 9.6 UPGRADE Insufficient session expiration vulnerability in syslink software AG Avantra on Linux, Windows allows Reusing
CVE-2026-8671 HIGH 7.5 UPGRADE Insertion of sensitive information into log file vulnerability in syslink software AG Avantra on Linux, Window
CVE-2026-8673 MEDIUM 5.9 UPGRADE Unprotected transport of credentials vulnerability in syslink software AG Avantra on Linux, Windows allows Sni

References

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