SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2019-12988

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).

CRITICAL 9.8EPSS 42.6%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 42.6%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.

Description

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).

CVSS 3.0
9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
42.55% probability · 99th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-78
Affected
citrix/netscaler sd-wan · citrix/sd-wan
Source
cve@mitre.org
EPSS trend
0%23%45%21 September 2026: 20.37%22 September 2026: 42.55%27 October 2026: 42.55%21 September 202627 October 2026

EPSS moved from 20.4% on 21 September 2026 to 42.6% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.