CVE-2011-2939 Details
Off-by-one error in the decode_xs function in Unicode/Unicode.xs in the Encode module before 2.44, as used in Perl before 5.15.6, might allow context-dependent attackers to cause a denial of service (memory corruption) via a crafted Unicode string, which triggers a heap-based buffer overflow.
View at NVD
Exploit prediction scoring system (EPSS) score for CVE-2011-2939
EPSS (Exploit Prediction Scoring System): EPSS predicts the likelihood that a vulnerability will be exploited in the wild. A higher percentage means a greater chance of an exploit occurring. The EPSS model produces a probability score between 0 and 1 (0 and 100%).
6.57 Probability of exploitation activity being observed over the next 30 days (91st percentile)
CVSS score for CVE-2011-2939
CVSS (Common Vulnerability Scoring System): An open framework owned and managed by FIRST.Org, Inc. that assigns a numerical score from 0 to 10 to software vulnerabilities to indicate their severity.
5.1 Medium
Products affected by CVE-2011-2939
Perl 5.10.0
Perl 5.10.1
Perl 5.12.1
Perl 5.12.2
Perl 5.12.3
DVE Score by Bitsight AI
DVE scores complement traditional static scoring systems like CVSS with Bitsight AI powered real-time threat intelligence and underground cyber criminal activity so that security teams can reduce alert fatigue and focus on vulnerabilities most likely to be exploited.
Not available
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CVE-2011-2939 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
US 12,312 44.21%
DE 3,966 14.24%
JP 3,389 12.17%
AT 573 2.06%
CZ 552 1.98%
FR 533 1.91%
RU 506 1.82%
IT 453 1.63%
CA 413 1.48%
ID 381 1.37%

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CVE-2011-2939 Industry Footprint

Top 10 Identified Industries

*Service provider organizations (typically Technology and Telecommunications) are disproportionally represented in the results given their upstream ownership of end-user infrastructure. See our FAQs.

Industry* Observations Percentage
Telecommunications 12,502 64.77%
Technology 5,691 29.48%
Food Production 252 1.31%
Utilities 246 1.27%
Education 231 1.20%
Business Services 117 0.61%
Legal 90 0.47%
Energy/Resources 48 0.25%
Government/Politics 39 0.20%
Media/Entertainment 25 0.13%

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