Out-of-bounds Write Affecting swupdate package, versions <2021.04-1


Severity

Recommended
0.0
critical
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
1.95% (80th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ECHOLATEST-SWUPDATE-20877394
  • published13 Oct 2026
  • disclosed24 Jun 2019

Introduced: 24 Jun 2019

CVE-2019-12951  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Echo:latest swupdate to version 2021.04-1 or higher.

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.

An issue was discovered in Mongoose before 6.15. The parse_mqtt() function in mg_mqtt.c has a critical heap-based buffer overflow.