# CVE-2020-28046

> As of 2024-08-04, CVE-2020-28046 is a vulnerability, EPSS 0.5% (41.8th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2020-28046, most recently “Sudo iptables NOPASSWD Misconfiguration Enables Local Privilege Escalation via Comment Injection”.

**Last updated:** 2024-08-04

## What is CVE-2020-28046?

An issue was discovered in ProlinOS through 2.4.161.8859R. An attacker with local code execution privileges as a normal user (MAINAPP) can escalate to root privileges by exploiting the setuid installation of the xtables-multi binary and leveraging the ip6tables --modprobe switch.

The identifier was first published 2183 days ago.

## Severity and exploitation probability

- **EPSS (FIRST):** 0.5% probability of exploitation in the next 30 days, higher than 41.8% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 1.7/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2020-11-01, last modified 2024-08-04

## Is CVE-2020-28046 being exploited?

It currently carries a trending score of 15 in the Threadlinqs vulnerability feed.

## Affected products and versions

No affected-product or package list has been recorded for CVE-2020-28046 in the tracked sources. The vendor advisory and the references below are the authoritative statement of what is affected.

## How to fix CVE-2020-28046

No vendor patch reference has been recorded for CVE-2020-28046 in the tracked sources. Follow the references below for a fix, and treat any affected deployment as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2020-28046

1 tracked threat in the Threadlinqs corpus references CVE-2020-28046, either in the campaign’s CVE list or as an indicator on the campaign record.

- [Sudo iptables NOPASSWD Misconfiguration Enables Local Privilege Escalation via Comment Injection](https://intel.threadlinqs.com/threat/TL-2026-2478) — MEDIUM · 2026-09-13

## Sources

Enriched from CVE.org, FIRST EPSS, GitHub Security Advisories. Last verified by Threadlinqs on 2026-10-10.

**Other references**

- [git.lsd.cat](https://git.lsd.cat/g/pax-pwn)

Canonical: https://intel.threadlinqs.com/cve/CVE-2020-28046
Full detection coverage and IOCs for threats exploiting CVE-2020-28046 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp