SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2025-52621

HCL BigFix SaaS Authentication Service is vulnerable to cache poisoning.

HIGH 7.5EPSS 0.15%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.15%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

HCL BigFix SaaS Authentication Service is vulnerable to cache poisoning.  The BigFix SaaS's HTTP responses were observed to include the Origin header. Its presence alongside an unvalidated reflection of the Origin header value introduces a potential for cache poisoning.

CVSS 3.1
7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS
0.15% probability · 5th percentile
CISA KEV
Not listed
Weakness
CWE-346
Affected
hcltech/bigfix saas
Source
psirt@hcl.com

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