CVE-2023-49141

Local privilege escalation via stream-cache isolation failure

Published Aug 14, 2024 · Updated Mar 14, 2025

Improper isolation in the stream cache of some Intel processors allows local users to escalate privileges on affected systems. Intel identifies inadequate isolation in the processor stream-cache mechanism but has not disclosed the cache operation or boundary that fails. Exploitation requires authenticated local access and additional execution conditions; successful use raises the user's privileges beyond the original security boundary.

CVSS severity7.3
High
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper isolation in the stream cache of some Intel processors allows local users to escalate privileges on affected systems. Intel identifies inadequate isolation in the processor stream-cache mechanism but has not disclosed the cache operation or boundary that fails. Exploitation requires authenticated local access and additional execution conditions; successful use raises the user's privileges beyond the original security boundary.

The record

CVE
CVE-2023-49141
Published
Aug 14, 2024
Updated
Mar 14, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-1189, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 14, 2024CVE publishedPublication date reported by the CVE source.
  2. Mar 14, 2025Record 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

7.8Intel CorporationCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
7.3Intel CorporationCVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-1189Improper Isolation of Shared Resources on System-on-a-Chip (SoC)
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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