THREATPORT/VULNERABILITY/CVE-2019-12988
CRITICAL SEVERITY

CVE-2019-12988

Netscaler Sd Wan vulnerability

CVSS
9.8
EPSS
42.6%
EPSS pct
99th
Exploited
No known
Citrix SD-WAN 10.2.x before 10.2.3 and NetScaler SD-WAN 10.0.x before 10.0.8 have Improper Input Validation (issue 4 of 6).
Affected vendor
Citrix
Affected product
Netscaler Sd Wan
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-78 — OS Command Injection
Published
2019-07-16

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 42.6% 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-2019-12988

  • Confirm whether Citrix Netscaler Sd Wan is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2019-12988.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2019-12988

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2019-12988 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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