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.
CVE-2016-10034
“—” beside the score: it is equal to NVD's CVSS score.
This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 38% (98th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.
- Public exploit or proof-of-concept code is available
A fix is available — apply it.
- CVSS v3
- 9.8
- EG Score
- 9.8CRITICALmedium confidence
- EG Risk
- 60EG Risk 60/100
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computed (value × EchelonGraph’s weight)Severity98% × 45%The EG Score, 9.8 of 10.Exploitation40% × 40%EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.Automatability0% × 15%CISA's BOD 26-04 default: no one has published Automatable for this CVE, and CISA treats it as “no” for a CVE not in KEV.SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.Exploitation public PoC (exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high. - EPSS PROB
- 38%
- EPSS %ILE
- 98th
- KEV
- Not listed
SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.
A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
Exploitation public PoC (exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.
In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). Where an input reads “CISA's BOD 26-04 default”, no one has published it for this CVE, and CISA's implementation guidance says: “If “Automatable” and “Technical Impact” information items about a CVE ID are not available and the CVE ID is not in the KEV Catalog, CISA will treat its values as “no” and “total,” respectively, until CISA or a third party provides metadata about the CVE ID. CISA will always provide the Vulnrichment data for a CVE ID listed in the KEV Catalog.” Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
Published
December 30, 2016
Last Modified
June 17, 2026
Advisory Details (8)
Auto-updated Oct 7, 2026PHPMailer < 5.2.20 with Exim MTA - Remote Code Execution - PHP webapps Exploit
https://www.exploit-db.com/exploits/42221/PHPMailer < 5.2.20 / SwiftMailer < 5.4.5-DEV / Zend Framework / zend-mail < 2.4.11 - 'AIO' 'PwnScriptum' Remote Code Execution - PHP webapps Exploit
https://www.exploit-db.com/exploits/40986/Zend Framework / zend-mail < 2.4.11 - Remote Code Execution - PHP webapps Exploit
https://www.exploit-db.com/exploits/40979/Zend Framework: Multiple vulnerabilities (GLSA 201804-10) — Gentoo security
https://security.gentoo.org/glsa/201804-10ZendFramework-Exploit-ZendMail-Remote-Code-Exec-CVE-2016-10034-Vuln
https://legalhackers.com/advisories/ZendFramework-Exploit-ZendMail-Remote-Code-Exec-CVE-2016-10034-Vuln.htmlSecurity Advisory - Security - Zend Framework
https://framework.zend.com/security/advisory/ZF2016-04Affected Packages
(1 across 1 ecosystem)
Packagist(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| zendframework/zend-mail | 2.7.0, 2.7.1 |
| — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 10× in last 7d / 23× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.
Showing the most recent 88 of 116 refreshes on record for this CVE.
A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 12 repeat rows among the latest 100 are merged into the row they repeat. The 28 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
- 2026-10-15 16:26 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-10-15 13:33 UTCEG score recompute
- 2026-10-14 16:27 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-10-14 08:34 UTCEG score recompute
- 2026-10-13 16:26 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-10-12 20:46 UTCEG score recompute
- 2026-10-12 01:10 UTCEG score recompute
- 2026-10-11 13:40 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-10-10 19:54 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-10-09 20:01 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-10-08 16:35 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-10-07 23:40 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-10-06 15:11 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-10-05 17:38 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-10-04 12:48 UTCOSV refresh
- 2026-10-03 14:21 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-09-30 14:58 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-09-30 09:09 UTCEG score recompute
- 2026-09-26 15:53 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-09-23 13:41 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-09-19 15:35 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-09-18 19:22 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-09-17 19:21 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-09-15 03:05 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-09-15 02:44 UTCOSV refresh
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- 2026-09-12 14:55 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-09-11 09:31 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-09-10 09:26 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-09-06 13:42 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-09-04 13:55 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-09-02 14:07 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-09-01 13:48 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-08-27 02:30 UTCOSV refresh
- 2026-08-26 14:41 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-08-25 13:44 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-08-23 00:13 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-08-21 23:44 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-08-20 22:50 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-08-19 16:59 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-08-16 14:51 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-08-16 02:09 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-08-15 01:25 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-08-12 13:46 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-08-11 13:36 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-08-10 15:38 UTCOSV refresh
- 2026-08-09 13:42 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-08-07 16:22 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-08-06 13:42 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-08-05 19:12 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-08-04 15:04 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-08-04 10:31 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-08-01 04:11 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-07-28 15:31 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-07-26 14:50 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-07-25 16:30 UTCOSV refresh
- 2026-07-25 14:13 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-07-24 14:13 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-07-23 14:14 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-07-23 01:21 UTCEG score recompute
- 2026-07-23 00:22 UTCEG score recompute
- 2026-07-22 22:00 UTCEG score recompute
- 2026-07-22 14:04 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-07-21 15:21 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-07-20 17:03 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-07-19 02:26 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-07-18 10:00 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-07-16 16:59 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-07-15 16:54 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-07-15 01:56 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-07-13 22:26 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-07-12 05:42 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-07-11 08:23 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-07-09 19:05 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-07-08 15:10 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-07-08 11:05 UTCOSV refresh
- 2026-07-06 02:20 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-07-01 15:02 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-06-30 23:19 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-06-28 14:04 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-06-28 04:53 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-06-27 03:05 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-06-25 13:47 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-06-24 14:02 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-06-23 21:30 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-06-22 14:23 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-06-21 01:57 UTCEPSS rescoreEPSS 38% · 98th percentile
- 2026-06-19 23:06 UTCOSV refresh
- 2026-06-19 19:23 UTCEPSS rescoreEPSS 38% · 98th percentile
Publicly available exploits
(3 references)Public exploit code is referenced for this CVE (3 Exploit-DB entries). Defenders should treat patch urgency accordingly.
- Exploit-DBEDB-42221Published Jun 21, 2017
PHPMailer < 5.2.20 with Exim MTA - Remote Code Execution
Open source ↗ - Exploit-DBEDB-40986Published Jan 2, 2017
PHPMailer < 5.2.20 / SwiftMailer < 5.4.5-DEV / Zend Framework / zend-mail < 2.4.11 - 'AIO' 'PwnScriptum' Remote Code Execution
Open source ↗ - Exploit-DBEDB-40979Published Dec 30, 2016
Zend Framework / zend-mail < 2.4.11 - Remote Code Execution
Open source ↗
Related CVEs(same CWE)
Same CWE
10 shownCWE-77
- CVE-2016-10045EG 9.8EPSS p100CRITICAL
- CVE-2016-10074EG 9.8EPSS p99CRITICAL
- CVE-2016-10107EG 9.8EPSS p96CRITICAL
- CVE-2016-10108EG 9.8EPSS p100CRITICAL
- CVE-2016-7399EG 9.8EPSS p92CRITICAL
- CVE-2015-3441EG 8.8HIGH
- CVE-2016-6656EG 7.2HIGH
- CVE-2016-1000156EG 9.8CRITICAL
- CVE-2016-6609EG 8.8HIGH
- CVE-2015-8971EG 7.8HIGH
Frequently asked(5)
What is CVE-2016-10034?
When was CVE-2016-10034 made public?
Is CVE-2016-10034 actively exploited?
What is the CVSS score of CVE-2016-10034?
How do I remediate CVE-2016-10034?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2016-10034
Is Your Infrastructure Affected by CVE-2016-10034?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.