CVE-2020-8808

SYSTEM privilege escalation via physical-memory mapping

Published Feb 7, 2020 · Updated Aug 4, 2024

Privilege escalation in CORSAIR iCUE before 3.25.60 allows local users to gain NT AUTHORITY\SYSTEM through its kernel drivers. CorsairLLAccess64.sys and CorsairLLAccess32.sys expose calls such as MmMapIoSpace that map attacker-selected physical memory without enforcing adequate access restrictions. Even low-integrity processes can read or overwrite arbitrary physical memory, enabling complete local system compromise without user interaction.

CVSS severity7.8
High
EPSS probability0.58%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Privilege escalation in CORSAIR iCUE before 3.25.60 allows local users to gain NT AUTHORITY\SYSTEM through its kernel drivers. CorsairLLAccess64.sys and CorsairLLAccess32.sys expose calls such as MmMapIoSpace that map attacker-selected physical memory without enforcing adequate access restrictions. Even low-integrity processes can read or overwrite arbitrary physical memory, enabling complete local system compromise without user interaction.

The record

CVE
CVE-2020-8808
Published
Feb 7, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-269, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 7, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.2NIST NVDAV:L/AC:L/Au:N/C:C/I:C/A:C
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-269Improper Privilege Management
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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