THREATPORT/VULNERABILITY/CVE-2018-21234
CRITICAL SEVERITY

CVE-2018-21234

Jodd vulnerability

CVSS
9.8
EPSS
8.3%
EPSS pct
94th
Exploited
No known
Jodd before 5.0.4 performs Deserialization of Untrusted JSON Data when setClassMetadataName is set.
Affected vendor
Jodd
Affected product
Jodd
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-502 — Deserialization of Untrusted Data
Published
2020-05-21

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 confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 8.3% 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-2018-21234

  • Confirm whether Jodd Jodd is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2018-21234.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-21234

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2018-21234 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

Run a free external exposure scan

Are you exposed to CVE-2018-21234?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2018-21234.

Start free scan

No credit card. Agentless.

Related vulnerabilities

CRITICAL
CVE-2022-50794
Impact Firmware vulnerability
CRITICAL
CVE-2025-66398
Signal K Server vulnerability
CRITICAL
CVE-2026-21445
Langflow vulnerability