THREATPORT/VULNERABILITY/CVE-2015-3249
CRITICAL SEVERITY

CVE-2015-3249

Traffic Server vulnerability

CVSS
9.8
EPSS
5.4%
EPSS pct
92th
Exploited
No known
The HTTP/2 experimental feature in Apache Traffic Server 5.3.x before 5.3.1 allows remote attackers to cause a denial of service (out-of-bounds access and daemon crash) or possibly execute arbitrary code via vectors related to the (1) frame_handlers array or (2) set_dynamic_table_size function.
Affected vendor
Apache
Affected product
Traffic Server
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-119 — Improper Restriction of Operations within Memory Bounds
Published
2017-10-30

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 5.4% 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-2015-3249

  • Confirm whether Apache Traffic Server is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2015-3249.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2015-3249

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2015-3249 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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