# CVE-2026-4823: Enter Software Iperius Backup NTLM2 information disclosure

> A local attacker can exploit a flaw in the NTLM2 handler to disclose sensitive information, requiring complex execution steps.

- **Severity:** Low 2.0 (`CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 25 Mar 2026
- **Updated:** 26 Mar 2026
- **Also known as:** GHSA-qj4q-79hc-9854

## What is CVE-2026-4823?

CVE-2026-4823 is a low-severity vulnerability in Enter Software Iperius Backup, published on 25 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A flaw has been found in Enter Software Iperius Backup up to 8.7.3. Affected by this vulnerability is an unknown functionality of the component NTLM2 Handler. Executing a manipulation can lead to information disclosure. The attack is restricted to local execution. Attacks of this nature are highly complex. The exploitation appears to be difficult. The exploit has been published and may be used. Upgrading to version 8.7.4 addresses this issue. Upgrading the affected component is advised. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

Weakness: CWE-284 (Improper Access Control), CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2026-4823?


## How do I fix CVE-2026-4823?

No fix has been published for CVE-2026-4823 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-4823 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-4823 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-4823 and fix it if it is affected.

What it is: CVE-2026-4823 is a low-severity vulnerability in Enter Software Iperius Backup, published on 25 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-4823 exists.

Affected product: Enter Software Iperius Backup. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-4823/ (Markdown: https://insights.sbomify.com/CVE-2026-4823/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-4823
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-4823
- OSV: https://osv.dev/vulnerability/CVE-2026-4823

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-4823/
Summaries are generated and may contain mistakes; the official description above is the record.