Out-of-bounds Write Affecting swupdate package, versions <2022.12+dfsg-1


Severity

Recommended
0.0
critical
0
10

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Threat Intelligence

EPSS
1.49% (74th percentile)

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  • Snyk IDSNYK-ECHOLATEST-SWUPDATE-20877401
  • published13 Oct 2026
  • disclosed8 Feb 2021

Introduced: 8 Feb 2021

CVE-2021-26530  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Echo:latest swupdate to version 2022.12+dfsg-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.

The mg_tls_init function in Cesanta Mongoose HTTPS server 7.0 (compiled with OpenSSL support) is vulnerable to remote OOB write attack via connection request after exhausting memory pool.

CVSS Base Scores

version 3.1