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High

Missing Authorization Session Hijack in Ivanti Connect Secure / Policy Secure / ZTA Gateway / Neurons for Secure Access

IdentifiersCVE-2025-55145CWE-862· Missing Authorization

CVE-2025-55145 is a missing authorization vulnerability affecting 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. The flaw is in HTML5 connection/session handling: after authentication, the server does not properly verify whether the requesting user is authorized to access or control a targeted existing HTML5 session. As a result, a remote authenticated attacker can interact with session-management functionality in a way that allows hijacking of another user’s existing HTML5 connection.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows an authenticated attacker to hijack existing HTML5 sessions belonging to other users. This can result in unauthorized access to active remote access sessions, interception or manipulation of session data, and use of the compromised session as a foothold for further activity. In enterprise remote access environments, this may enable unauthorized access to internal resources and facilitate lateral movement, depending on the privileges associated with the hijacked session.

Mitigation

If you can’t patch tonight, do this now.

If immediate patching is not possible, reduce exposure of affected remote access infrastructure, restrict access to trusted users and networks where feasible, closely monitor authenticated activity against HTML5 session-management functionality, and review logs for anomalous session access or takeover behavior. Because exploitation requires valid credentials, enforcing strong authentication controls and minimizing unnecessary user access can reduce risk until patches are applied.

Remediation

Patch, then assume compromise.

Upgrade affected products to fixed versions or later: Ivanti Connect Secure 22.7R2.9 or 22.8R2, Ivanti Policy Secure 22.7R1.6, Ivanti ZTA Gateway 2.8R2.3-723, and Ivanti Neurons for Secure Access 22.8R1.4. Cloud-based Neurons for Secure Access deployments were automatically patched on 2025-08-02; on-premises deployments require manual updating.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
IvantiConnect Secureapplication
IvantiNeurons For Secure Accessapplication
IvantiPolicy Secureapplication
IvantiZero Trust Access Gatewayapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

3 SOURCESView more in app
What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity2

Community discussion across Reddit, Mastodon, and other social sources.

EXTERNAL REFERENCES
MITRE CVE
cve.org · CVE-2025-55145
NVD
nvd.nist.gov/vuln/detail/CVE-2025-55145
MITRE CWE · CWE-862
Missing Authorization
Vendor Advisory
forums.ivanti.com/s/article/September-Security-Advisory-Ivanti-Connect-Secure-Policy-Secure-ZTA-Gateways-and-Neurons-for-Secure-Access-Multiple-CVEs?language=en_US