CVE-2025-2976: A vulnerability was found in GFI KerioConnect 10.0.6

Routine

LOW 3.5DOWNGRADE

CVE-2025-2976 is a low-severity flaw (CVSS 3.5) affecting kerio connect. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was found in GFI KerioConnect 10.0.6. It has been classified as problematic. Affected is an unknown function of the component File Upload. The manipulation leads to cross site scripting. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	3.5 (Low)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.3% (top 79%)
CISA exploited list	No
Weakness	CWE-79, CWE-94
Published	2025-03-31
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: gfi

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

Am I affected?

Timeline

2025-03-31 05:15 UTCPublished CVE record published
2026-06-17 09:07 UTCUpdated Record last modified

gfi kerio connect DOWNGRADE

Affected: 10.0.6

Fixed in: no fixed release known

Safe to downgrade to: a release before 10.0.6

1. Check installed version

apt-cache policy kerio-connect || rpm -q kerio-connect || kerio-connect --version

2. No fixed release: DOWNGRADE to a release before 10.0.6 (Debian / Ubuntu)

apt-cache madison kerio-connect sudo apt install kerio-connect=<VERSION_BEFORE_10.0.6> sudo apt-mark hold kerio-connect

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

dnf --showduplicates list kerio-connect sudo dnf downgrade kerio-connect-<VERSION_BEFORE_10.0.6> sudo dnf versionlock add kerio-connect

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-2025-2976?

kerio connect: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-2976 being exploited?

CVE-2025-2976 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-2025-2976 affect?

CVE-2025-2976 affects kerio connect. Severity is low (CVSS 3.5). A vulnerability was found in GFI KerioConnect 10.0.6. It has been classified as problematic. Affected is an unknown function of the component File Upload. The manipulation leads to cross site scripting. It is possible to launch the attack r

How urgent is CVE-2025-2976?

Priority 17/100. No elevated risk signals yet.

Related CVEs

CVE-2025-2977 LOW 3.5 DOWNGRADE A vulnerability was found in GFI KerioConnect 10.0.6
CVE-2025-2975 LOW 3.5 DOWNGRADE A vulnerability was found in GFI KerioConnect 10.0.6 and classified as problematic

References

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