Out-of-Bounds Affecting swupdate package, versions *


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.62% (48th percentile)

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  • Snyk IDSNYK-ECHOLATEST-SWUPDATE-20877390
  • published13 Oct 2026
  • disclosed2 Apr 2026

Introduced: 2 Apr 2026

CVE-2026-5245  (opens in a new tab)
CWE-119  (opens in a new tab)
CWE-121  (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 found in Cesanta Mongoose up to 7.20. This impacts the function handle_mdns_record of the file mongoose.c of the component mDNS Record Handler. Performing a manipulation of the argument buf results in stack-based buffer overflow. Remote exploitation of the attack is possible. A high degree of complexity is needed for the attack. The exploitability is said to be difficult. The exploit has been made public and could be used. Upgrading to version 7.21 will fix this issue. The patch is named 0d882f1b43ff2308b7486a56a9d60cd6dba8a3f1. You should upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

CVSS Base Scores

version 3.1