THREATPORT/VULNERABILITY/CVE-2018-12404
MEDIUM SEVERITY

CVE-2018-12404

Network Security Services vulnerability

CVSS
5.9
EPSS
44.4%
EPSS pct
99th
Exploited
No known
A cached side channel attack during handshakes using RSA encryption could allow for the decryption of encrypted content. This is a variant of the Adaptive Chosen Ciphertext attack (AKA Bleichenbacher attack) and affects all NSS versions prior to NSS 3.41.
Affected vendor
Mozilla
Affected product
Network Security Services
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Published
2019-05-02

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, high attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality.

Its EPSS score of 44.4% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it among the most exploited CVEs currently tracked.

Check your external exposure to CVE-2018-12404

  • Confirm whether Mozilla Network Security Services is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2018-12404.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-12404

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2018-12404 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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Are you exposed to CVE-2018-12404?

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