THREATPORT/VULNERABILITY/CVE-2020-17528
CRITICAL SEVERITY

CVE-2020-17528

Nuttx vulnerability

CVSS
9.1
EPSS
3.1%
EPSS pct
87th
Exploited
No known
Out-of-bounds Write vulnerability in TCP stack of Apache NuttX (incubating) versions up to and including 9.1.0 and 10.0.0 allows attacker to corrupt memory by supplying arbitrary urgent data pointer offsets within TCP packets including beyond the length of the packet.
Affected vendor
Apache
Affected product
Nuttx
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Weakness type (CWE)
Published
2020-12-09

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 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 87% of all scored CVEs.

Check your external exposure to CVE-2020-17528

  • Confirm whether Apache Nuttx is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2020-17528.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2020-17528

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2020-17528 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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