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CVE-2017-15806

42
FAUCET Score

CVE-2017-15806 describes a remote code execution vulnerability in the ezcMailMtaTransport class within Zeta Components Mail versions prior to 1.8.2. This flaw allows attackers to execute arbitrary code by crafting a malicious email address that bypasses character restrictions in the returnPath property. With a CVSS score of 8.1 (HIGH), this vulnerability presents a significant risk due to its network-based attack vector and high impact on confidentiality, integrity, and availability. While not listed on CISA's KEV catalog, an ExploitDB entry (EDB-43155) confirms the existence of public exploit code, despite minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.8.2CPE matchmatch criteria
cpe:2.3:a:zetacomponents:mail:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.1HIGH

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
10.65%
Probability of exploitation in next 30 days
EPSS Percentile
95.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-43155 · Nov 16, 2017
This CVE's current EPSS score of 0.1065 is in the 76th percentile among its peer group of 8,915 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

composerpatch availablevia ghsa
Product: zetacomponents/mailFixed in: 1.8.2

Vendor Advisories (1)

composerGHSA-hgr8-g756-vmg9high

Zeta Components Mail Arbitrary code execution via a crafted email address

May 17, 2022

References

github.com / zetacomponents/Mail/issues/58
Issue TrackingThird Party Advisory
github.com / zetacomponents/Mail/releases/tag/1.8.2
Issue TrackingRelease NotesThird Party Advisory
kay-malwarebenchmark.github.io / blog/cve-2017-15806-critical-rce-vulnerability
Issue TrackingThird Party Advisory
kay-malwarebenchmark.github.io / blog/cve-2017-15806-yuan-cheng-dai-ma-zhi-xing-lou-dong
Issue TrackingThird Party Advisory
exploit-db.com / exploits/43155
Issue TrackingThird Party AdvisoryVDB Entry
securityfocus.com / bid/101866
Third Party AdvisoryVDB Entry