CVE-2016-10074

Swiftmailer vulnerability

CVSS

9.8

EPSS

41.8%

EPSS pct

99th

Exploited

No known

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.

Affected vendor

Swiftmailer

Affected product

Swiftmailer

CVSS vector

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

Weakness type (CWE)

CWE-77 — Command Injection

Published

2016-12-30

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 41.8% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it among the most exploited CVEs currently tracked.

Check your external exposure to CVE-2016-10074

Confirm whether Swiftmailer Swiftmailer is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2016-10074.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2016-10074

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2016-10074 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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