CVE-2025-15069: Improper Authentication vulnerability in Gmission Web Fax allows Privilege Escalation.This issue affects Web F

Routine

HIGH 7.1UPGRADE

CVE-2025-15069 is a high-severity flaw (CVSS 7.1) affecting web fax. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Improper Authentication vulnerability in Gmission Web Fax allows Privilege Escalation.This issue affects Web Fax: from 3.0 before 3.0.1

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.1 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 75%)
CISA exploited list	No
Weakness	CWE-287
Published	2025-12-29
Last modified	2026-10-07

Publisher (CNA): FSI · Vendor: gmission

Last updated 2026-10-07 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-12-29 06:15 UTCPublished CVE record published
2026-10-07 12:10 UTCUpdated Record last modified

gmission web fax UPGRADE

Affected: >= 3.0 and < 4.0

Fixed in: 4.0

Safe to downgrade to: a release before 3.0

1. Check installed version

apt-cache policy web-fax || rpm -q web-fax || web-fax --version

2. UPGRADE to 4.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade web-fax

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade web-fax

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 3.0 (Debian / Ubuntu)

apt-cache madison web-fax sudo apt install web-fax=<VERSION_BEFORE_3.0> sudo apt-mark hold web-fax

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

dnf --showduplicates list web-fax sudo dnf downgrade web-fax-<VERSION_BEFORE_3.0> sudo dnf versionlock add web-fax

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-2025-15069?

web fax: upgrade to 4.0. Exact commands for each OS are on this page.

Is CVE-2025-15069 being exploited?

CVE-2025-15069 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-2025-15069 affect?

CVE-2025-15069 affects web fax. Severity is high (CVSS 7.1). Improper Authentication vulnerability in Gmission Web Fax allows Privilege Escalation.This issue affects Web Fax: from 3.0 before 3.0.1

How urgent is CVE-2025-15069?

Priority 31/100. High severity

Related CVEs

CVE-2025-15068 HIGH 7.7 UPGRADE Missing Authorization vulnerability in Gmission Web Fax allows Authentication Abuse, Session Credential Falsif
CVE-2025-15070 MEDIUM 5.5 UPGRADE Exposure of Sensitive Information to an Unauthorized Actor, Missing Authorization vulnerability in Gmission We

References

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