Agnitum Outpost Internet Security Local Privilege Escalation
Published Aug 1, 2025
8.5
HIGHCVSS 4.0
EPSS 0.54%
Description
A local privilege escalation vulnerability exists in Agnitum Outpost Internet Security 8.1 that allows an unprivileged user to execute arbitrary code with SYSTEM privileges. The flaw resides in the acs.exe component, which exposes a named pipe that accepts unauthenticated commands. By exploiting a directory traversal weakness in the pipe protocol, an attacker can instruct the service to load a malicious DLL from a user-controlled location. The DLL is then executed in the context of the privileged service.
Affected products
-
- Version 8.1StatusaffectedConstraints-
- 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 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Agnitum Ltd. | Outpost Internet Security | 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
No CVSS v3.1 score for this CVE.
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 Aug 4, 2025 · 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
2025–2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (4 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.54% (0.00537) | 43.18th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.44% (0.00442) | 34.99th | v5 (v2026.06.15) |
| Oct 8, 2025 | 1.50% (0.01497) | 80.40th | v4 (v2025.03.14) |
| Aug 2, 2025 | 0.02% (0.00017) | 2.65th | v4 (v2025.03.14) |
References (4)
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/local/agnitum_outpost_acs.rb exploit
- https://www.exploit-db.com/exploits/27282 exploit
- https://www.exploit-db.com/exploits/28335 exploit
- https://www.vulncheck.com/advisories/agnitum-outpost-internet-security-local-priv-esc third-party-advisory
Change history (0)
No recorded changes yet.