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Jwt Attack CVE-2026-79389

| EUVDEUVD-2026-71742 HIGH
Improper Verification of Cryptographic Signature (CWE-347)
2026-09-04 cve@mitre.org GHSA-wgx6-hxg7-3c47
7.4
CVSS 3.1 · Vendor: mitre
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Severity by source

Vendor (mitre) PRIMARY
7.4 HIGH
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Primary rating from Vendor (mitre) · only source for this CVE.

CVSS VectorVendor: mitre

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

Lifecycle Timeline

4
Analysis Generated
Sep 15, 2026 - 10:53 vuln.today
CVSS changed
Sep 14, 2026 - 14:37 NVD
7.4 (HIGH)
CVE Published
Sep 04, 2026 - 20:17 cve.org
HIGH 7.4
CVE Published
Sep 04, 2026 - 20:17 cve.org
UNKNOWN (no severity yet)

DescriptionCVE.org

Trueview T18161 S 6.0.23.4 contains an improper verification in MQTT command processing. An attacker with network access can replay or modify captured MQTT messages, including security-related nonce, timestamp, and signature fields, and the device accepts the modified messages and executes the associated commands.

AnalysisAI

Improper verification of cryptographic signatures in the MQTT command handler of Trueview T18161 S firmware 6.0.23.4 lets a network-positioned attacker replay or tamper with captured MQTT messages — including their nonce, timestamp, and signature fields — and have the device accept and execute the embedded commands. The flaw (CWE-347) yields high

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CVE-2026-79389 vulnerability details – vuln.today

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