THREATPORT/VULNERABILITY/CVE-2021-40146
CRITICAL SEVERITY

CVE-2021-40146

Any23 vulnerability

CVSS
9.8
EPSS
5.7%
EPSS pct
92th
Exploited
No known
A Remote Code Execution (RCE) vulnerability was discovered in the Any23 YAMLExtractor.java file and is known to affect Any23 versions < 2.5. RCE vulnerabilities allow a malicious actor to execute any code of their choice on a remote machine over LAN, WAN, or internet. RCE belongs to the broader class of arbitrary code execution (ACE) vulnerabilities.
Affected vendor
Apache
Affected product
Any23
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2021-09-11

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 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-2021-40146

  • Confirm whether Apache Any23 is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2021-40146.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-40146

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2021-40146 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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