CVE-2021-3603

unknown
Published 2021-06-22 · Modified 2024-02-17
CVSS v3
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v2
VIR risk

Description

PHPMailer untrusted code may be run from an overridden address validator

Predictions

Exploit likelihood
30%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-3603

OS impact

OSVersionStatusFixed in
debian debianbookwormfixed6.6.3-1
debian debianbullseyeaffected
debian debianforkyfixed6.6.3-1
debian debiansidfixed6.6.3-1
debian debiantrixiefixed6.6.3-1

Package impact

EcosystemPackageVulnerableFixed
php Packagistphpmailer/phpmailer<6.5.06.5.0

References

Verify integrity in audit chain (admin only). AS-IS.