CVE-2020-27194

MEDIUM

Linux kernel <5.8.15 - Memory Corruption

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 3 public exploits for CVE-2020-27194. PoCs published by xmzyshypnc, WhatsWrongAndWhy, willinin.

AI-analyzed exploit summary This repository contains a working proof-of-concept exploit for CVE-2020-27194, a Linux kernel vulnerability in the BPF subsystem. The exploit leverages BPF map operations to achieve arbitrary read/write primitives, leading to local privilege escalation.

Description

An issue was discovered in the Linux kernel before 5.8.15. scalar32_min_max_or in kernel/bpf/verifier.c mishandles bounds tracking during use of 64-bit values, aka CID-5b9fbeb75b6a.

Exploits (3)

nomisec WORKING POC 15 stars
by xmzyshypnc · poc
https://github.com/xmzyshypnc/CVE-2020-27194

This repository contains a working proof-of-concept exploit for CVE-2020-27194, a Linux kernel vulnerability in the BPF subsystem. The exploit leverages BPF map operations to achieve arbitrary read/write primitives, leading to local privilege escalation.

Classification
Working Poc 95%
Attack Type
Lpe
Complexity
Complex
Reliability
Reliable
Target: Linux kernel 5.8.14
No auth needed
Prerequisites: Linux kernel 5.8.14 with BPF support enabled · Local access to the target system
mistral-large-3 · analyzed Feb 16, 2026 Full analysis →
nomisec TROJAN
by WhatsWrongAndWhy · poc
https://github.com/WhatsWrongAndWhy/CVE-2020-27194

The repository contains an ELF binary file disguised as a PoC for CVE-2020-27194, but the binary appears to be obfuscated and contains suspicious system call sequences and memory manipulation patterns. The binary does not demonstrate the vulnerability and instead exhibits characteristics of a malicious payload (e.g., potential reverse shell or code execution unrelated to the stated CVE).

Classification
Trojan 99%
Attack Type
Other
Complexity
Complex
Reliability
Theoretical
Target: Unknown (not related to CVE-2020-27194)
No auth needed
Prerequisites: Execution on a Linux x86-64 system
mistral-large-3 · analyzed Jul 22, 2026 Full analysis →
nomisec WORKING POC
by willinin · poc
https://github.com/willinin/CVE-2020-27194-exp

This is a working proof-of-concept exploit for CVE-2020-27194, targeting a Linux kernel BPF (Berkeley Packet Filter) vulnerability. The exploit leverages BPF instructions to perform arbitrary read/write operations, potentially leading to privilege escalation.

Classification
Working Poc 90%
Attack Type
Lpe
Complexity
Complex
Reliability
Reliable
Target: Linux kernel (specific version not specified in the provided code)
No auth needed
Prerequisites: Access to a vulnerable Linux kernel with BPF support
mistral-large-3 · analyzed Feb 16, 2026 Full analysis →

References (2)

Core 2

Scores

CVSS v3 5.5
EPSS 0.0202
EPSS Percentile 79.0%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-681
Status published
Products (1)
linux/linux_kernel < 5.8.15
Published Oct 16, 2020
Tracked Since Feb 18, 2026