CVE-2026-2968

LOW
2026-02-23 [email protected]
3.7
CVSS 3.1

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 21:55 vuln.today
PoC Detected
Feb 23, 2026 - 20:17 vuln.today
Public exploit code
CVE Published
Feb 23, 2026 - 04:16 nvd
LOW 3.7

Tags

Authentication Bypass

Description

A vulnerability was detected in Cesanta Mongoose up to 7.20. This impacts the function mg_chacha20_poly1305_decrypt of the file /src/tls_chacha20.c of the component Poly1305 Authentication Tag Handler. The manipulation results in improper verification of cryptographic signature. The attack may be launched remotely. This attack is characterized by high complexity. The exploitability is said to be difficult. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Analysis

A vulnerability was detected in Cesanta Mongoose up to 7.20. This impacts the function mg_chacha20_poly1305_decrypt of the file /src/tls_chacha20.c of the component Poly1305 Authentication Tag Handler. …

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Remediation

During next maintenance window: Apply vendor patches when convenient. Monitor vendor channels for updates.

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Priority Score

39
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +18
POC: +20

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CVE-2026-2968 vulnerability details – vuln.today
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