CVE-2021-34551
unknown
CVSS v3
—
CVSS v4 NEW
—
VIR risk
—
Description
Remote Code Execution vulnerability in PHPMailer 6.4.1 running on Windows
Predictions
Exploit likelihood
30%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 0 |
| sid | Fixed | 0 |
| forky | Fixed | 0 |
| bullseye | Fixed | 0 |
| bookworm | Fixed | 0 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Packagist | phpmailer/phpmailer | <6.5.0 | 6.5.0 |
References
- https://security-tracker.debian.org/tracker/CVE-2021-34551
- https://github.com/PHPMailer/PHPMailer/security/advisories/GHSA-7q44-r25x-wm4q
- https://nvd.nist.gov/vuln/detail/CVE-2021-34551
- https://github.com/PHPMailer/PHPMailer/commit/acd264bf17ff4ac5c915f0d4226dce8a9ea70bc3
- https://github.com/FriendsOfPHP/security-advisories/blob/master/phpmailer/phpmailer/CVE-2021-34551.yaml
- https://github.com/PHPMailer/PHPMailer/blob/master/SECURITY.md
- https://github.com/PHPMailer/PHPMailer/releases/tag/v6.5.0
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3YRMWGA4VTMXFB22KICMB7YMFZNFV3EJ
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FJYSOFCUBS67J3TKR74SD3C454N7VTYM
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.