CVE-2015-8476

Name: CVE-2015-8476
Creator: NVD / NIST
Published: 2015-12-16T21:59:05.313+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.99%

Last modified Jun 17, 2026

CVE-2015-8476 is a vulnerability of currently unknown severity. Multiple CRLF injection vulnerabilities in PHPMailer before 5.2.14 allow attackers to inject arbitrary SMTP commands via CRLF sequences in an (1) email address to the validateAddress function in class.phpmailer.php or (2) SMTP command to the sendCommand function in class.smtp.php, a different vulnerability than CVE-2012-0796.. EPSS estimates a 1.99% chance of exploitation in the next 30 days.

Description

Multiple CRLF injection vulnerabilities in PHPMailer before 5.2.14 allow attackers to inject arbitrary SMTP commands via CRLF sequences in an (1) email address to the validateAddress function in class.phpmailer.php or (2) SMTP command to the sendCommand function in class.smtp.php, a different vulnerability than CVE-2012-0796.

Metrics

EPSS Probability

1.99%

78.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Debian	Debian Linux	6.0
Debian	Debian Linux	7.0
Debian	Debian Linux	8.0
Phpmailer Project	Phpmailer	<= 5.2.13

References

Timeline

Published: Dec 16, 2015
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-8476?

How severe is CVE-2015-8476?

Severity scoring for CVE-2015-8476 is pending analysis. The EPSS model estimates a 1.99% probability of exploitation in the next 30 days.

How do I fix CVE-2015-8476?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-8476?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST