SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2016-10034

The setFrom function in the Sendmail adapter in the zend-mail component before 2.4.11, 2.5.x, 2.6.x, and 2.7.x before 2.7.2, and Zend Framework before 2.4.11 might allow remote attackers to pass extra parameters to the mail command and consequently…

EXPLOIT ×3CRITICAL 9.8EPSS 38.4%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 38.4%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.

Description

The setFrom function in the Sendmail adapter in the zend-mail component before 2.4.11, 2.5.x, 2.6.x, and 2.7.x before 2.7.2, and Zend Framework before 2.4.11 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.

CVSS 3.0
9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
38.44% probability · 99th percentile
Public exploits
3 in Exploit-DB · first 30 December 2016
CISA KEV
Not listed
Weakness
CWE-77
Affected
zend/zend framework · zend/zend-mail
Source
cve@mitre.org
EPSS trend
0%20%40%21 September 2026: 31.92%22 September 2026: 38.44%4 November 2026: 38.44%21 September 20264 November 2026

EPSS moved from 31.9% on 21 September 2026 to 38.4% on 4 November 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

Public exploits (3)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-42221source ↗PHPMailer < 5.2.20 with Exim MTA - Remote Code Executionphp · phackt_ulwebapps21 June 2017no
EDB-40986source ↗PHPMailer < 5.2.20 / SwiftMailer < 5.4.5-DEV / Zend Framework / zend-mail < 2.4.11 - 'AIO' 'PwnScriptum' Remote Code Executionphp · Dawid Golunskiwebapps2 January 2017no
EDB-40979source ↗Zend Framework / zend-mail < 2.4.11 - Remote Code Executionphp · Dawid Golunskiwebapps30 December 2016no

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.