Insufficient Verification of Data Authenticity Affecting swupdate package, versions *


Severity

Recommended
0.0
low
0
10

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Threat Intelligence

EPSS
0.28% (19th percentile)

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  • Snyk IDSNYK-ECHOLATEST-SWUPDATE-20877388
  • published13 Oct 2026
  • disclosed23 Feb 2026

Introduced: 23 Feb 2026

CVE-2026-2968  (opens in a new tab)
CWE-345  (opens in a new tab)
CWE-347  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest swupdate.

NVD Description

Note: Versions mentioned in the description apply only to the upstream swupdate package and not the swupdate package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1