CVE-2025-6202

HIGH

SK Hynix DDR5 DIMMs 2021-1 to 2024-12 - Rowhammer Bit Flip via Improper Resource Release

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2025-6202. PoCs published by demining.

AI-analyzed exploit summary This repository contains a detailed writeup discussing hardware-based attacks (Phoenix Rowhammer and RAMnesia) targeting cryptographic systems, specifically Bitcoin wallets, by exploiting memory vulnerabilities (CVE-2025-6202 and CVE-2023-39910). It describes methods for ECDSA key recovery through physical side-channel attacks and flaws in trusted execution environments (TEEs).

Description

Vulnerability in SK Hynix DDR5 on x86 allows a local attacker to trigger Rowhammer bit flips impacting the Hardware Integrity and the system's security. This issue affects DDR5: DIMMs produced from 2021-1 until 2024-12.

Exploits (1)

nomisec WRITEUP 1 stars
by demining · poc
https://github.com/demining/RAMnesia-Attack

This repository contains a detailed writeup discussing hardware-based attacks (Phoenix Rowhammer and RAMnesia) targeting cryptographic systems, specifically Bitcoin wallets, by exploiting memory vulnerabilities (CVE-2025-6202 and CVE-2023-39910). It describes methods for ECDSA key recovery through physical side-channel attacks and flaws in trusted execution environments (TEEs).

Classification
Writeup 90%
Attack Type
Other
Complexity
Complex
Reliability
Theoretical
Target: DDR5 memory systems, cryptographic libraries (e.g., libbitcoin Explorer), Intel SGX, AMD SEV-SNP, NVIDIA Confidential Computing
No auth needed
Prerequisites: Physical access to target hardware · Specialized hardware (e.g., DIMM interposer) · Knowledge of memory management and cryptographic operations
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (2)

Core 2

Scores

CVSS v4 7.1
EPSS 0.0029
EPSS Percentile 20.5%
CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/SA:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-404
Status published
Products (1)
SK Hynix/DDR5 DIMMs produced from 2021-1 until 2024-12
Published Sep 15, 2025
Tracked Since Feb 18, 2026