SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityDeferred

CVE-2026-39578

Unauthenticated PHP Object Injection in Valiance <= 1.2 versions.

MEDIUM 5.5EPSS 0.27%

Does this matter?

Lower severity and a low EPSS score (0.27%). Track it; it rarely justifies an emergency change on its own.

Description

Unauthenticated PHP Object Injection in Valiance <= 1.2 versions.

CVSS 3.1
5.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
EPSS
0.27% probability · 19th percentile
CISA KEV
Not listed
Weakness
CWE-502
Source
audit@patchstack.com

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