THREATPORT/VULNERABILITY/CVE-2018-0488
CRITICAL SEVERITY

CVE-2018-0488

Mbed Tls vulnerability

CVSS
9.8
EPSS
4.9%
EPSS pct
91th
Exploited
No known
ARM mbed TLS before 1.3.22, before 2.1.10, and before 2.7.0, when the truncated HMAC extension and CBC are used, allows remote attackers to execute arbitrary code or cause a denial of service (heap corruption) via a crafted application packet within a TLS or DTLS session.
Affected vendor
Arm
Affected product
Mbed Tls
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
Published
2018-02-13

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 4.9% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 91% of all scored CVEs.

Check your external exposure to CVE-2018-0488

  • Confirm whether Arm Mbed Tls is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2018-0488.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-0488

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2018-0488 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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