CVE-2025-3771: trellix system_information_reporter Link Following
Vulnerability summary
CVE-2025-3771 is a high (CVSS 7.2) Link Following vulnerability in trellix system_information_reporter. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 5% of scored vulnerabilities.
Timeline
- 26-06-2025PublishedVulnerability first disclosed.
- 26-06-2025Last modifiedVulnerability information updated.
Description
A path or symbolic link manipulation vulnerability in SIR 1.0.3 and prior versions allows an authenticated non-admin local user to overwrite system files with SIR backup files, which can potentially cause a system crash. This was achieved by adding a malicious entry to the registry under the Trellix SIR registry folder or via policy or with a junction symbolic link to files that the user would not normally have permission to acces
CVSS metrics
3 scores · 2 sources · 2 versions- NVDNIST7.2HighCVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS trend
Probability
0.16%
Chance of exploitation in the next 30 days
Percentile
5%
Versus all other CVEs
30-day change
+0.01 pp
From 0.15% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Trellix1 product
- system_information_reporter1.0.3 | ≤ 1.0.3
1 vendor · 1 product
References
1 links- thrive.trellix.com/s/article/000014635Permissions Required