CVE-2013-0277

CVE-2013-0277 is a critical-severity vulnerability in Rubyonrails Rails with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

ActiveRecord in Ruby on Rails before 2.3.17 and 3.x before 3.1.0 allows remote attackers to cause a denial of service or execute arbitrary code via crafted serialized attributes that cause the +serialize+ helper to deserialize arbitrary YAML.

Frequently asked questions

What is CVE-2013-0277?
ActiveRecord in Ruby on Rails before 2.3.17 and 3.x before 3.1.0 allows remote attackers to cause a denial of service or execute arbitrary code via crafted serialized attributes that cause the +serialize+ helper to deserialize arbitrary YAML.
How severe is CVE-2013-0277?
CVE-2013-0277 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2013-0277 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-0277?
CVE-2013-0277 primarily affects Rubyonrails Rails. In total, 59 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-0277?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2013-0277 published?
CVE-2013-0277 was published on 2013-02-13 and last updated on 2026-06-16.

References

Affected products (59)

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