SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2026-33443

Attackers with an intimate knowledge of and total control over the tunnel protocol can create a persistent DoS against the server.

HIGH 7.1EPSS 0.37%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.37%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

CVE-2026-33443 is a memory management error in Secure Access servers prior to 14.55. Attackers with an intimate knowledge of and total control over the tunnel protocol can create a persistent DoS against the server.

CVSS 4.0
7.1 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS
0.37% probability · 31th percentile
CISA KEV
Not listed
Weakness
CWE-400
Affected
absolute/secure access
Source
SecurityResponse@netmotionsoftware.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.