AVAST SecureLine 5.5.522.0 - 'SecureLine' Unquoted Service Path
Published Feb 1, 2026
8.5
HIGHCVSS 4.0
EPSS 0.17%
Description
Avast SecureLine 5.5.522.0 contains an unquoted service path vulnerability that allows local users to potentially execute code with elevated system privileges. Attackers can exploit the unquoted path in the service configuration to inject malicious code that would execute with LocalSystem account permissions during service startup.
Affected products
-
- Version 5.5.522.0StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Avast | AVAST SecureLine | n/a |
|
No data.
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
1 other source (NVD) ▾
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Feb 2, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
Feb–Oct 2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.17% (0.00169) | 5.57th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.15% (0.00150) | 4.49th | v5 (v2026.06.15) |
| Feb 2, 2026 | 0.01% (0.00011) | 1.13th | v4 (v2025.03.14) |
References (3)
- https://www.avast.com/ product
- https://www.exploit-db.com/exploits/48249 exploit
- https://www.vulncheck.com/advisories/avast-secureline-secureline-unquoted-service-path third-party-advisory
| Link | Providers | Tags |
|---|---|---|
| https://www.avast.com/ | product | |
| https://www.exploit-db.com/exploits/48249 | exploit | |
| https://www.vulncheck.com/advisories/avast-secureline-secureline-unquoted-service-path | third-party-advisory |
Change history (0)
No recorded changes yet.