CVE-2012-2139

Mail Gem vulnerability

CVSS

5.0

EPSS

4.9%

EPSS pct

91th

Exploited

No known

Directory traversal vulnerability in lib/mail/network/delivery_methods/file_delivery.rb in the Mail gem before 2.4.4 for Ruby allows remote attackers to read arbitrary files via a .. (dot dot) in the to parameter.

Affected vendor

Rubygems

Affected product

Mail Gem

CVSS vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

Weakness type (CWE)

CWE-22 — Path Traversal

Published

2012-07-18

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no authentication. Successful exploitation leads to partial impact to confidentiality.

Its EPSS score of 4.9% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 91% of all scored CVEs.

Check your external exposure to CVE-2012-2139

Confirm whether Rubygems Mail Gem is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2012-2139.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2012-2139

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