THREATPORT/VULNERABILITY/CVE-2013-0443
MEDIUM SEVERITY

CVE-2013-0443

Jre vulnerability

CVSS
4.0
EPSS
4.3%
EPSS pct
90th
Exploited
No known
Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 through Update 11, 6 through Update 38, 5.0 through Update 38, and 1.4.2_40 and earlier, and OpenJDK 6 and 7, allows remote attackers to affect confidentiality and integrity via vectors related to JSSE. NOTE: the previous information is from the February 2013 CPU. Oracle has not commented on claims from another vendor that this issue is related to incorrect validation of Diffie-Hellman keys, which allows remote attackers to conduct a "small subgroup attack" to force the use of weak session keys or obtain sensitive information about the private key.
Affected vendor
Oracle
Affected product
Jre
CVSS vector
AV:N/AC:H/Au:N/C:P/I:P/A:N
Published
2013-02-02

Risk analysis

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

Its EPSS score of 4.3% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 90% of all scored CVEs.

Check your external exposure to CVE-2013-0443

  • Confirm whether Oracle Jre is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2013-0443.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2013-0443

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2013-0443 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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