CVE-2022-33983

highpriority · track · 28EPSS 0.002 · 6 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.17% (6th) EPSS

CVSS 7 · high

Is it mine?

7 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

DMA transactions which are targeted at input buffers used for the NvmExpressLegacy software SMI handler could cause SMRAM corruption through a TOCTOU attack. DMA transactions which are targeted at input buffers used for the software SMI handler used by the NvmExpressLegacy driver could cause SMRAM corruption through a TOCTOU attack. This issue was discovered by Insyde engineering based on the general description provided by Intel's iSTARE group. This issue was fixed in kernel 5.2: 05.27.25, kernel 5.3: 05.36.25, kernel 5.4: 05.44.25, kernel 5.5: 05.52.25 https://www.insyde.com/security-pledge/SA-2022053

cvss

Technical severity, 0–10. One row per scoring source.

7.0

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.4–7

v3.17highCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1 · impact 5.9

v3.17highCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.17highCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondaryexploitability 1 · impact 5.9

v3.16.4mediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-367USprimary

affected products (7)

Products and version ranges known to be affected.

HP Computerall versionscert_bundDEcpe:/h:hp:computer:-
Insyde UEFI Firmwareall versionscert_bundDEcpe:/h:insyde:uefi:-
n/a n/a≤ n/aenisa_euvdEU
insyde kernel5.2 → 5.2.05.27.25nvdUScpe:2.3:a:insyde:kernel:*:*:*:*:*:*:*:*
insyde kernel5.3 → 5.3.05.36.25nvdUScpe:2.3:a:insyde:kernel:*:*:*:*:*:*:*:*
insyde kernel5.4 → 5.4.05.44.25nvdUScpe:2.3:a:insyde:kernel:*:*:*:*:*:*:*:*
insyde kernel5.5 → 5.5.05.52.25nvdUScpe:2.3:a:insyde:kernel:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-0706Insyde UEFI Firmware: Mehrere SchwachstellenDeutsch2023-03-21csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen in der Insyde UEFI Firmware ausnutzen, um beliebigen Code auszuführen, Informationen offenzulegen oder einen Denial of Service zu verursachen.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd NVD CVE.org MITRE

published 2022-11-15modified 2026-06-17

related (1,061)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2025-38352US	—OT critical	1.36% (72nd)	KEV	2025-07-22
In the Linux kernel, the following vulnerability has been resolved: posix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del() If an exiting non-autor…
CVE-2025-22224US	high8.2OT critical	1.56% (75th)	KEV	2025-03-04
VMware ESXi, and Workstation contain a TOCTOU (Time-of-Check Time-of-Use) vulnerability that leads to an out-of-bounds write. A malicious actor with local administrative privileges…
CVE-2024-30088US	—OT critical	68.2% (99th)	KEV	2024-06-11
Windows Kernel Elevation of Privilege Vulnerability
CVE-2022-48618US	high7.0OT critical	0.49% (42nd)	KEV	2024-01-09
The issue was addressed with improved checks. This issue is fixed in macOS Ventura 13.1, watchOS 9.2, iOS 16.2 and iPadOS 16.2, tvOS 16.2. An attacker with arbitrary read and write…
CVE-2023-35311US	—OT critical	15.5% (97th)	KEV	2023-07-11
Microsoft Outlook Security Feature Bypass Vulnerability

+1056 more

references (8)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan