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CVE-2015-3649

20
FAUCET Score

CVE-2015-3649 affects the open-uri-cached rubygem, allowing local users to execute arbitrary Ruby code. This is achieved by creating a specially crafted directory under /tmp and placing malicious Ruby code within it after a meta file is established. The vulnerability carries a high severity CVSS score of 7.8, indicating a local attack vector with low complexity, leading to high impacts on confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
0.0.5CPE matchmatch criteria
cpe:2.3:a:open-uri-cached_project:open-uri-cached:0.0.5:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.39%
Probability of exploitation in next 30 days
EPSS Percentile
31.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0039 is in the 70th percentile among its peer group of 16,994 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

rubygemsGHSA-7m2w-9gw7-c3xphigh

open-uri-cached Gem for Ruby Unsafe Temporary File Creation Enables Code Execution

May 13, 2022

References

github.com / tigris/open-uri-cached/blob/master/lib/open-uri/cached.rb
Third Party Advisory
github.com / tigris/open-uri-cached/blob/master/lib/open-uri/cached.rb
Third Party Advisory
github.com / tigris/open-uri-cached/blob/master/lib/open-uri/cached.rb
Third Party Advisory
benjaminfleischer.com / 2013/03/20/yaml-and-security-in-ruby
Third Party Advisory
openwall.com / lists/oss-security/2015/05/06/2
Mailing ListThird Party Advisory
securityfocus.com / bid/74469
Third Party AdvisoryVDB Entry