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CVE-2017-9801

27
FAUCET Score

CVE-2017-9801 describes a vulnerability in Apache Commons Email versions 1.0 through 1.4 where line breaks in the email subject can allow an attacker to inject arbitrary SMTP headers. This vulnerability has a CVSS score of 7.5 (HIGH), indicating a network-based attack with low complexity, requiring no user interaction, and potentially leading to high integrity impact. While the EPSS score is low and there is no evidence of active exploitation, nor publicly available exploit code in Metasploit, Nuclei, or ExploitDB, organizations using affected versions should still consider patching. Community discussion and media coverage for this CVE are minimal.

Impacted Technologies

VendorProductVersion(s)CPE
1.0CPE matchmatch criteria
cpe:2.3:a:apache:commons_email:1.0:*:*:*:*:*:*:*
1.1CPE matchmatch criteria
cpe:2.3:a:apache:commons_email:1.1:*:*:*:*:*:*:*
1.2CPE matchmatch criteria
cpe:2.3:a:apache:commons_email:1.2:*:*:*:*:*:*:*
1.3CPE matchmatch criteria
cpe:2.3:a:apache:commons_email:1.3:*:*:*:*:*:*:*
1.3.1CPE matchmatch criteria
cpe:2.3:a:apache:commons_email:1.3.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
6.04%
Probability of exploitation in next 30 days
EPSS Percentile
92.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0604 is in the 87th percentile among its peer group of 51,466 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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)

mavenpatch availablevia ghsa
Product: org.apache.commons:commons-emailFixed in: 1.5

Vendor Advisories (1)

mavenGHSA-p7vm-phxx-g722high

Improper Input Validation in Apache Commons Email

May 17, 2022

References

lists.apache.org / thread.html/7ef903a772a2ff08605df1be819044fb15df2815eb3d63878b3fbbb5%40%3Cannounce.apache.org%3E
securityfocus.com / bid/100082
Third Party AdvisoryVDB Entry
securitytracker.com / id/1039043
Third Party AdvisoryVDB Entry