THREATPORT/VULNERABILITY/CVE-2021-30468
HIGH SEVERITY

CVE-2021-30468

Cxf vulnerability

CVSS
7.5
EPSS
7.0%
EPSS pct
94th
Exploited
No known
A vulnerability in the JsonMapObjectReaderWriter of Apache CXF allows an attacker to submit malformed JSON to a web service, which results in the thread getting stuck in an infinite loop, consuming CPU indefinitely. This issue affects Apache CXF versions prior to 3.4.4; Apache CXF versions prior to 3.3.11.
Affected vendor
Apache
Affected product
Cxf
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness type (CWE)
  • CWE-400 — Uncontrolled Resource Consumption
  • CWE-835 — Loop with Unreachable Exit Condition (Infinite Loop)
Published
2021-06-16

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to availability.

Its EPSS score of 7.0% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 94% of all scored CVEs.

Check your external exposure to CVE-2021-30468

  • Confirm whether Apache Cxf is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2021-30468.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-30468

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2021-30468 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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