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Vulnerability record · CVE-2016-10074 · published 30 December 2016

CVE-2016-10074: Swiftmailer command injection vulnerability

Swiftmailer · Swiftmailer

The mail transport (aka Swift_Transport_MailTransport) in Swift Mailer before 5.4.5 might allow remote attackers to pass extra parameters to the mail command and consequently execute arbitrary code via a \" (backslash double quote) in a crafted e-mail address in the (1) From, (2) ReturnPath, or (3) Sender header.

9.8 CVSS 3.0 Critical EPSS 42% · top 1.4% CWE-77 · Command injection
9.8CVSS 3.0 base score, v2 7.5
42%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
18References, 8 tagged exploit
17 Jun 2026Last modified by NVD

Description

The mail transport (aka Swift_Transport_MailTransport) in Swift Mailer before 5.4.5 might allow remote attackers to pass extra parameters to the mail command and consequently execute arbitrary code via a \" (backslash double quote) in a crafted e-mail address in the (1) From, (2) ReturnPath, or (3) Sender header.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://packetstormsecurity.com/files/140290/SwiftMailer-Remote-Code-Execution.html ExploitThird Party Advisory
http://seclists.org/fulldisclosure/2016/Dec/86 ExploitMailing List
http://www.debian.org/security/2017/dsa-3769
http://www.securityfocus.com/bid/95140 Third Party AdvisoryVDB Entry
https://github.com/swiftmailer/swiftmailer/blob/5.x/CHANGES PatchVendor Advisory
https://legalhackers.com/advisories/SwiftMailer-Exploit-Remote-Code-Exec-CVE-2016-10074-Vuln.html ExploitTechnical DescriptionThird Party Advisory
https://www.exploit-db.com/exploits/40972/ ExploitThird Party Advisory
https://www.exploit-db.com/exploits/40986/
https://www.exploit-db.com/exploits/42221/
http://packetstormsecurity.com/files/140290/SwiftMailer-Remote-Code-Execution.html ExploitThird Party Advisory
http://seclists.org/fulldisclosure/2016/Dec/86 ExploitMailing List
http://www.debian.org/security/2017/dsa-3769
http://www.securityfocus.com/bid/95140 Third Party AdvisoryVDB Entry
https://github.com/swiftmailer/swiftmailer/blob/5.x/CHANGES PatchVendor Advisory
https://legalhackers.com/advisories/SwiftMailer-Exploit-Remote-Code-Exec-CVE-2016-10074-Vuln.html ExploitTechnical DescriptionThird Party Advisory
https://www.exploit-db.com/exploits/40972/ ExploitThird Party Advisory
https://www.exploit-db.com/exploits/40986/
https://www.exploit-db.com/exploits/42221/

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Source: NIST National Vulnerability Database (record CVE-2016-10074), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.