# CVE-2016-20058: Netgate AMITI Antivirus build 23.0.305 Unquoted Service Path Privilege Escalation

> Local attackers can escalate privileges to LocalSystem by placing a malicious executable in the unquoted service path of Netgate AMITI Antivirus.

- **Severity:** High 8.5 (`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`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 4 Apr 2026
- **Updated:** 27 Oct 2026
- **Also known as:** GHSA-gmgr-4mx6-9f7m

## What is CVE-2016-20058?

CVE-2016-20058 is a high-severity vulnerability in NETGATE AMITI Antivirus, published on 4 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Netgate AMITI Antivirus build 23.0.305 contains an unquoted service path vulnerability in the AmitiAvSrv and AmitiAntivirusHealth services that allows local attackers to escalate privileges. Attackers can place a malicious executable in the unquoted service path and trigger service restart or system reboot to execute code with LocalSystem privileges.

Weakness: CWE-428 (Unquoted Search Path or Element)

## Which versions are affected by CVE-2016-20058?

It affects 1 product.


Products: Netgate Amiti Antivirus.

## How do I fix CVE-2016-20058?

No fix has been published for CVE-2016-20058 yet. Limit exposure of the affected software until one is available.

## Is CVE-2016-20058 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-20058 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-20058 and fix it if it is affected.

What it is: CVE-2016-20058 is a high-severity vulnerability in NETGATE AMITI Antivirus, published on 4 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-20058 exists.

Affected product: NETGATE AMITI Antivirus. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2016-20058/ (Markdown: https://insights.sbomify.com/CVE-2016-20058/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-20058
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-20058
- OSV: https://osv.dev/vulnerability/CVE-2016-20058

---
From sbomify Insights: https://insights.sbomify.com/CVE-2016-20058/
Summaries are generated and may contain mistakes; the official description above is the record.