THREATPORT/VULNERABILITY/CVE-2019-17559
CRITICAL SEVERITY

CVE-2019-17559

Traffic Server vulnerability

CVSS
9.8
EPSS
3.1%
EPSS pct
86th
Exploited
No known
There is a vulnerability in Apache Traffic Server 6.0.0 to 6.2.3, 7.0.0 to 7.1.8, and 8.0.0 to 8.0.5 with a smuggling attack and scheme parsing. Upgrade to versions 7.1.9 and 8.0.6 or later versions.
Affected vendor
Apache
Affected product
Traffic Server
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
Published
2020-03-23

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 3.1% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 86% of all scored CVEs.

Check your external exposure to CVE-2019-17559

  • Confirm whether Apache Traffic Server is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2019-17559.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2019-17559

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2019-17559 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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