TI-2026-04206 Aliases CVE-2026-4823 GHSA-qj4q-79hc-9854

Enter Software Iperius Backup NTLM2 information disclosure

MEDIUM 44CWE-200Published 2026-03-25 · Updated 2026-03-26

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: High
Attack requirements: None
Impact type: Information disclosure, Security bypass
Confidentiality · integrity · availability: Low · None · None
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-200 and CWE-284.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00136 3rd percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix Fixed Iperius Backup (Enter Software): 8.7.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Enter Software	Iperius Backup	8.7.0; 8.7.1; 8.7.2; 8.7.3	8.7.4	Patch available	CNA

Iperius Backup VendorEnter Software Affected 8.7.0; 8.7.1; 8.7.2; 8.7.3 Fixed in 8.7.4 Patch available CNA

Remediation

Fix · CNA Iperius Backup (Enter Software) Fixed in 8.7.4

Timeline

2026-10-02 Threatist record created from CVE-2026-4823
2026-10-03 Alias added: GHSA-qj4q-79hc-9854

References

Exploit 1

https://github.com/0truust/iperius-backup-security-advisories/blob/main/advisories/ntlm-relay-credential-exposure.md

Patch 1

https://www.iperiusbackup.com/download-software-backup.aspx

TI-2026-04207 Enter Software Iperius Backup Backup Job Configuration File privileges management CVSS 4.0HIGH 7.3
TI-2026-04642 Enter Software Iperius Backup IperiusAccounts.ini hard-coded key CVSS 4.0LOW 2.0
TI-2026-04205 Enter Software Iperius Backup Backup Service temp file CVSS 4.0HIGH 7.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences