THREATPORT/VULNERABILITY/CVE-2017-5641
CRITICAL SEVERITY

CVE-2017-5641

Flex Blazeds vulnerability

CVSS
9.8
EPSS
21.3%
EPSS pct
97th
Exploited
No known
Previous versions of Apache Flex BlazeDS (4.7.2 and earlier) did not restrict which types were allowed for AMF(X) object deserialization by default. During the deserialization process code is executed that for several known types has undesired side-effects. Other, unknown types may also exhibit such behaviors. One vector in the Java standard library exists that allows an attacker to trigger possibly further exploitable Java deserialization of untrusted data. Other known vectors in third party libraries can be used to trigger remote code execution.
Affected vendor
Apache
Affected product
Flex Blazeds
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
2017-12-28

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 21.3% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2017-5641

  • Confirm whether Apache Flex Blazeds is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2017-5641.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-5641

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2017-5641 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-2017-5641?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2017-5641.

Start free scan

No credit card. Agentless.

Related vulnerabilities

CRITICAL
CVE-2026-32746
Inetutils vulnerability
CRITICAL
CVE-2026-32267
Craft Cms vulnerability
CRITICAL
CVE-2026-25769
Wazuh vulnerability