THREATPORT/VULNERABILITY/CVE-2013-2421
HIGH SEVERITY

CVE-2013-2421

Jre vulnerability

CVSS
9.3
EPSS
5.7%
EPSS pct
92th
Exploited
No known
Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 17 and earlier, and OpenJDK 6 and 7, allows remote attackers to affect confidentiality, integrity, and availability via unknown vectors related to HotSpot. NOTE: the previous information is from the April 2013 CPU. Oracle has not commented on claims from another vendor that this issue is related to incorrect MethodHandle lookups, which allows remote attackers to bypass Java sandbox restrictions.
Affected vendor
Oracle
Affected product
Jre
CVSS vector
AV:N/AC:M/Au:N/C:C/I:C/A:C
Published
2013-04-17

Risk analysis

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

Its EPSS score of 5.7% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 92% of all scored CVEs.

Check your external exposure to CVE-2013-2421

  • Confirm whether Oracle Jre is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2013-2421.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2013-2421

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2013-2421 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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