All vulnerabilities

Servers and applications

CVE-2019-20925

An unauthenticated client can trigger denial of service by issuing specially crafted wire protocol messages, which cause the message decompressor to incorrectly allocate memory. This issue affects MongoDB Server v4.2 versions prior to 4.2.1; MongoDB Server v4.0 versions prior to 4.0.13; MongoDB Server v3.6 versions prior to 3.6.15 and MongoDB Server v3.4 versions prior to 3.4.24.

Severity
High 7.5
Published
24 Nov 2020
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Fixed in
3.4.24, 3.6.15, 4.0.13, 4.2.1
Sources
NVD

Affected software

SoftwareAffected versions
MongoDBServers and applications · cpe:a:mongodb:mongodb
  • From 3.4.0 before 3.4.24
  • From 3.6.0 before 3.6.15
  • From 4.0.0 before 4.0.13
  • From 4.2.0 before 4.2.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2019-20925
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2019-20925