CVE-2021-33145

Local privilege escalation via uncaught exception

Published May 16, 2024 · Updated Oct 25, 2024

Uncaught exception in Intel Ethernet Adapters and I225 Manageability firmware allows privileged local users to escalate privileges. Intel identifies the fault only as an uncaught exception and has not disclosed the affected code path, triggering input, or exception-handling failure. Privileged local access and non-routine attack conditions are required; successful exploitation grants higher privilege and can alter data or interrupt service.

CVSS severity7.2
High
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Uncaught exception in Intel Ethernet Adapters and I225 Manageability firmware allows privileged local users to escalate privileges. Intel identifies the fault only as an uncaught exception and has not disclosed the affected code path, triggering input, or exception-handling failure. Privileged local access and non-routine attack conditions are required; successful exploitation grants higher privilege and can alter data or interrupt service.

The record

CVE
CVE-2021-33145
Published
May 16, 2024
Updated
Oct 25, 2024
Vendor
Topcon Positioning Systems, Inc.
Product
Intel Ethernet Adapter Complete Driver Pack
Classifications
CWE-248, T1068
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. May 16, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 25, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <29.0.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Topcon Positioning Systems, Inc. · Intel Ethernet Adapter Complete Driver Packversion=0 <29.0.1
Topcon Positioning Systems, Inc. · Intel Ethernet Controller I225 Manageability Firmwareversion=0 <1.87

Published CVSS scores

7.2Intel CorporationCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/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.

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-248Uncaught Exception
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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo