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CVE-2012-4481

17
FAUCET Score

CVE-2012-4481 describes a vulnerability in Ruby 1.8.7's safe-level feature, allowing attackers to modify strings through the NameError#to_s method when handling Ruby objects; this is an incomplete fix for a prior vulnerability. Rated with a CVSS score of 4.3 (Medium), it has a network attack vector, medium attack complexity, and impacts integrity, but not confidentiality or availability. There is no evidence of active exploitation, no known exploit code, and minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
1.8.7CPE matchmatch criteria
cpe:2.3:a:ruby-lang:ruby:1.8.7:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.94%
Probability of exploitation in next 30 days
EPSS Percentile
78.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0194 is in the 61st percentile among its peer group of 19,956 CVEs.

Social Chatter

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

Remediation

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: ruby-0:1.8.5-27.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: ruby-0:1.8.7.352-10.el6_4
View patch

Vendor Advisories (1)

redhatCVE-2012-4481Low

ruby: Incomplete fix for CVE-2011-1005 for NameError#to_s method when used on objects

Oct 5, 2012

References

rhn.redhat.com / errata/RHSA-2013-0129.html
rhn.redhat.com / errata/RHSA-2013-0612.html
bugzilla.redhat.com / show_bug.cgi
wiki.mageia.org / en/Support/Advisories/MGASA-2012-0294
mandriva.com / security/advisories
openwall.com / lists/oss-security/2012/10/05/4