CVE-2025-27925: Nintex Automation 5.6 and 5.7 before 5.8 has insecure deserialization of user input.

Routine

HIGH 8.5UPGRADE

CVE-2025-27925 is a high-severity flaw (CVSS 8.5) affecting automation. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Nintex Automation 5.6 and 5.7 before 5.8 has insecure deserialization of user input.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.5 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 65%)
CISA exploited list	No
Weakness	CWE-502
Published	2025-03-10
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: nintex

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

Am I affected?

Timeline

2025-03-10 23:15 UTCPublished CVE record published
2026-06-17 09:04 UTCUpdated Record last modified

nintex automation UPGRADE

Affected: >= 5.6 and < 5.8

Fixed in: 5.8

Safe to downgrade to: a release before 5.6

1. Check installed version

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

2. UPGRADE to 5.8 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade automation

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 5.6 (Debian / Ubuntu)

apt-cache madison automation sudo apt install automation=<VERSION_BEFORE_5.6> sudo apt-mark hold automation

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

dnf --showduplicates list automation sudo dnf downgrade automation-<VERSION_BEFORE_5.6> sudo dnf versionlock add automation

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-2025-27925?

automation: upgrade to 5.8. Exact commands for each OS are on this page.

Is CVE-2025-27925 being exploited?

CVE-2025-27925 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-2025-27925 affect?

CVE-2025-27925 affects automation. Severity is high (CVSS 8.5). Nintex Automation 5.6 and 5.7 before 5.8 has insecure deserialization of user input.

How urgent is CVE-2025-27925?

Priority 38/100. High severity

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References

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