Back to Database
Status published
Medium
CVE-2015-9096
Net::SMTP in Ruby before 2.4.0 is vulnerable to SMTP command...
Vulnerability Description
Net::SMTP in Ruby before 2.4.0 is vulnerable to SMTP command injection via CRLF sequences in a RCPT TO or MAIL FROM command, as demonstrated by CRLF sequences immediately before and after a DATA substring.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2015-9096
Credits & Attribution
No credits recorded in the NVD database.
References
- https://www.debian.org/security/2017/dsa-3966
- https://hackerone.com/reports/137631
- https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html
- https://github.com/rubysec/ruby-advisory-db/issues/215
- https://github.com/ruby/ruby/commit/0827a7e52ba3d957a634b063bf5a391239b9ffee
- http://www.mbsd.jp/Whitepaper/smtpi.pdf
More from ruby-lang
View All →CVE-2025-27221
In the URI gem before 1.0.3 for Ruby, the URI...
Low
3.2
CVE-2025-27220
In the CGI gem before 0.4.2 for Ruby, a Regular...
Medium
4
CVE-2025-27219
In the CGI gem before 0.4.2 for Ruby, the CGI::Cookie.parse...
Medium
5.8
CVE-2022-28739
There is a buffer over-read in Ruby before 2.6.10, 2.7.x...
High
7.5
CVE-2022-28738
A double free was found in the Regexp compiler in...
Critical
9.8
Affected Vendor
ruby-lang
View all reports →Affected Software
ruby
Vulnerable Versions:
0
Timeline
Official Publish:
June 12th, 2017
Last Modified:
August 6th, 2024
Added to House:
July 19th, 2026
CVSS Vectors
V3:
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.