All vulnerabilities

Servers and applications

CVE-2021-34551

PHPMailer before 6.5.0 on Windows allows remote code execution if lang_path is untrusted data and has a UNC pathname.

Severity
High 8.1
Published
16 Jun 2021
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
6.5.0
Sources
NVD

Affected software

SoftwareAffected versions
PHPMailerServers and applications · cpe:a:phpmailer_project:phpmailer
  • Every version before 6.5.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-34551
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-34551