Out-of-Bounds Affecting swupdate package, versions *


Severity

Recommended
0.0
critical
0
10

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Threat Intelligence

EPSS
0.76% (54th percentile)

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  • Snyk IDSNYK-ECHOLATEST-SWUPDATE-20877389
  • published13 Oct 2026
  • disclosed2 Apr 2026

Introduced: 2 Apr 2026

CVE-2026-5244  (opens in a new tab)
CWE-119  (opens in a new tab)
CWE-122  (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 has been found in Cesanta Mongoose up to 7.20. This affects the function mg_tls_recv_cert of the file mongoose.c of the component TLS 1.3 Handler. Such manipulation of the argument pubkey leads to heap-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 7.21 mitigates this issue. The name of the patch is 0d882f1b43ff2308b7486a56a9d60cd6dba8a3f1. It is advisable to 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