Logsign SIEM up to 6.4.116 code injection

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
9.2$0-$5k0.98

Summaryinfo

A vulnerability categorized as very critical has been discovered in Innotim Software, Telecommunications and Consultancy Trade Logsign SIEM up to 6.4.116. The affected element is an unknown function. Executing a manipulation can lead to code injection. This vulnerability is handled as CVE-2026-90926. The attack can be executed remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as very critical was found in Innotim Software, Telecommunications and Consultancy Trade Logsign SIEM up to 6.4.116. This vulnerability affects an unknown functionality. The manipulation with an unknown input leads to a code injection vulnerability. The CWE definition for the vulnerability is CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Improper Control of Generation of Code ('Code Injection') vulnerability in Innotim Software, Telecommunications and Consultancy Trade Ltd. Co. Logsign SIEM allows Code Injection. This issue affects Logsign SIEM: from 6.4.101 before 6.4.117.

The advisory is shared for download at siberguvenlik.gov.tr. This vulnerability was named CVE-2026-90926 since 09/14/2026. The exploitation appears to be easy. The attack can be initiated remotely. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 09/28/2026). The MITRE ATT&CK project declares the attack technique as T1059.

Upgrading to version 6.4.117 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.4
VulDB Meta Temp Score: 9.2

VulDB Base Score: 9.9
VulDB Temp Score: 9.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 8.8
CNA Vector (TR-CERT): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Code injection
CWE: CWE-94 / CWE-74 / CWE-707
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Logsign SIEM 6.4.117

Timelineinfo

09/14/2026 CVE reserved
09/28/2026 +14 days Advisory disclosed
09/28/2026 +0 days VulDB entry created
09/28/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: siberguvenlik.gov.tr
Status: Confirmed

CVE: CVE-2026-90926 (🔒)
GCVE (CVE): GCVE-0-2026-90926
GCVE (VulDB): GCVE-100-411076

Entryinfo

Created: 09/28/2026 16:01
Changes: 09/28/2026 16:01 (62)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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