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CVE-2025-55145: Missing authorization in Ivanti Connect Secure before 22.7R2.9 or 22.8R2, Ivanti Policy Secure before 22.7R1.6

44
This month
HIGH 8.9UPGRADEUPGRADEUPGRADE

CVE-2025-55145 is a high-severity flaw (CVSS 8.9) affecting neurons for secure access, connect secure, policy secure. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Missing authorization in Ivanti Connect Secure before 22.7R2.9 or 22.8R2, Ivanti Policy Secure before 22.7R1.6, Ivanti ZTA Gateway before 2.8R2.3-723 and Ivanti Neurons for Secure Access before 22.8R1.4 (Fix deployed on 02-Aug-2025) allows a remote authenticated attacker to hijack existing HTML5 connections.

Why this priority

  • High severity

A fixed release or distro patch exists.

Risk facts

CVSS score8.9 (High)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededLow
User interactionRequired
EPSS exploit chance0.7% (top 48%)
CISA exploited listNo
WeaknessCWE-862
Published2025-09-09
Last modified2026-10-18
Publisher (CNA): ivanti · Vendor: ivanti

Share: LinkedIn · X · Reddit

Last updated 2026-10-18 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

ivanti neurons for secure access UPGRADE
Affected: < 22.8 · 22.8 r1 · 22.8 r1.1 · 22.8 r1.2 · 22.8 r1.3
Fixed in: 22.8
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy neurons-for-secure-access || rpm -q neurons-for-secure-access || neurons-for-secure-access --version
2. UPGRADE to 22.8 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade neurons-for-secure-access
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade neurons-for-secure-access
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
ivanti connect secure UPGRADE
Affected: < 22.7 · 22.7 · 22.7 r1 · 22.7 r1.1 · 22.7 r1.2 · 22.7 r1.3 · 22.7 r1.4 · 22.7 r1.5
Fixed in: 22.7
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy connect-secure || rpm -q connect-secure || connect-secure --version
2. UPGRADE to 22.7 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade connect-secure
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade connect-secure
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
ivanti policy secure UPGRADE
Affected: < 22.7 · 22.7 · 22.7 r1 · 22.7 r1.1 · 22.7 r1.2 · 22.7 r1.3 · 22.7 r1.4 · 22.7 r1.5
Fixed in: 22.7
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy policy-secure || rpm -q policy-secure || policy-secure --version
2. UPGRADE to 22.7 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade policy-secure
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade policy-secure
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
ivanti zero trust access gateway DOWNGRADE
Affected: 22.8 r2.2
Fixed in: no fixed release known
Safe to downgrade to: a release before 22.8
1. Check installed version
apt-cache policy zero-trust-access-gateway || rpm -q zero-trust-access-gateway || zero-trust-access-gateway --version
2. No fixed release: DOWNGRADE to a release before 22.8 (Debian / Ubuntu)
apt-cache madison zero-trust-access-gateway sudo apt install zero-trust-access-gateway=<VERSION_BEFORE_22.8> sudo apt-mark hold zero-trust-access-gateway
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list zero-trust-access-gateway sudo dnf downgrade zero-trust-access-gateway-<VERSION_BEFORE_22.8> sudo dnf versionlock add zero-trust-access-gateway
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-2025-55145?

neurons for secure access: upgrade to 22.8; connect secure: upgrade to 22.7; policy secure: upgrade to 22.7. Exact commands for each OS are on this page.

Is CVE-2025-55145 being exploited?

CVE-2025-55145 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-2025-55145 affect?

CVE-2025-55145 affects neurons for secure access, connect secure, policy secure. Severity is high (CVSS 8.9). Missing authorization in Ivanti Connect Secure before 22.7R2.9 or 22.8R2, Ivanti Policy Secure before 22.7R1.6, Ivanti ZTA Gateway before 2.8R2.3-723 and Ivanti Neurons for Secure Access before 22.8R1.4 (Fix deployed on 02-Aug-2025) allows

How urgent is CVE-2025-55145?

Priority 44/100. High severity

Software pages

Ivanti vulnerabilities

Related CVEs

References

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