Vulnerability Monitor

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CVE-2015-8476

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.

Security Impact Summary

CVE-2015-8476 is a security vulnerability that . Impacting 2 products from debian, from phpmailer_project organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2015, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2015-12-16T21:59:05.313

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 5.0 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:P/A:N

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: PARTIAL
Availability Impact: NONE

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-20

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	debian	debian_linux	6.0	Yes
Operating System	debian	debian_linux	7.0	Yes
Operating System	debian	debian_linux	8.0	Yes
Application	phpmailer_project	phpmailer	≤ 5.2.13	Yes

References

http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177130.html ([email protected])
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177139.html ([email protected])
http://www.debian.org/security/2015/dsa-3416 ([email protected])
http://www.openwall.com/lists/oss-security/2015/12/04/5 ([email protected])
http://www.openwall.com/lists/oss-security/2015/12/05/1 ([email protected])
http://www.securityfocus.com/bid/78619 ([email protected])
https://github.com/PHPMailer/PHPMailer/commit/6687a96a18b8f12148881e4ddde795ae477284b0 ([email protected])
https://github.com/PHPMailer/PHPMailer/releases/tag/v5.2.14 Vendor Advisory ([email protected])
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177130.html (af854a3a-2127-422b-91ae-364da2661108)
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177139.html (af854a3a-2127-422b-91ae-364da2661108)
http://www.debian.org/security/2015/dsa-3416 (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2015/12/04/5 (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2015/12/05/1 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/78619 (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/PHPMailer/PHPMailer/commit/6687a96a18b8f12148881e4ddde795ae477284b0 (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/PHPMailer/PHPMailer/releases/tag/v5.2.14 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For debian's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.