---
title: "CVE-2026-90924: Innotim Software Logsign SIEM - Authentication Bypass"
description: "Innotim Software, Telecommunications and Consultancy Trade Ltd. Co. Logsign SIEM 6.4.101 to before 6.4.117 contains a broken authentication caused by use of default credentials, letting attackers gain unauthorized access by trying common or default usernames and passwords, exploit requires no special privileges."
url: https://panop.io/threat-heartbeat/CVE-2026-90924/
---

# CVE-2026-90924 Innotim Software Logsign SIEM - Authentication Bypass

Innotim Software, Telecommunications and Consultancy Trade Ltd. Co. Logsign SIEM 6.4.101 to before 6.4.117 contains a broken authentication caused by use of default credentials, letting attackers gain unauthorized access by trying common or default usernames and passwords, exploit requires no special privileges.

CVSS base score 9.8 /10

Critical

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.27% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-90924)

## Details

Type

Authentication Bypass

Impact

Broken Authentication

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Published

28 September 2026

Updated

15 October 2026

Weakness

[CWE-1392](https://cwe.mitre.org/data/definitions/1392.html)

## Vendor fix

Upgrade to version 6.4.117 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-90924](https://nvd.nist.gov/vuln/detail/CVE-2026-90924)
- [https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1202](https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1202)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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