Which products and versions are affected by CVE-2022-40022?

Affected: Syncserver S650 Firmware (Microchip). The full list is in the CVE brief.

Is CVE-2022-40022 being exploited in the wild?

It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Oct 14, 2023.

Is CVE-2022-40022 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2022-40022?

Public exploit code is available.

Is there a fix for CVE-2022-40022?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2022-40022 be patched?

Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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Vulnerability Intelligence

CVE-2022-40022

CriticalExploitedPublic exploit

Microchip Technology (Microsemi) SyncServer S650 was discovered to contain a command injection vulnerability.

Published Feb 13, 2023 · Updated Mar 21, 2025

Key Facts

Patch immediately

CVE-2022-40022 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Syncserver S650 Firmware (Microchip).
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Oct 14, 2023. Public exploit code is available.
EPSS estimates a 92% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v3.1

9.8

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS (30-day exploit likelihood)

92%

Higher than 99.8% of all scored CVEs

Exploited in the wild

Yes

2 catalog listings

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2022-40022 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

Microchip Technology (Microsemi) SyncServer S650 was discovered to contain a command injection vulnerability.

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
Industry KEV feed	Nov 13, 2023	n/a	Not reported
CIRCL KEV	Oct 14, 2023	n/a	Not reported

Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Affected Products

1 affected entries in total

Product	Affected versions	Fixed in
Syncserver S650 FirmwareMicrochip	See advisory	n/a

Timeline

Publicly disclosed
Feb 13, 2023
Added to CIRCL KEV
Oct 14, 2023
Added to Industry KEV feed
Nov 13, 2023
Last updated
Mar 21, 2025

Weakness Type

CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')

References

advisoryhttps://www.securifera.com/advisories/CVE-2022-40022/
exploitVulnCheck exploitation report
exploitVulnCheck exploitation report
exploitVulnCheck exploitation report
exploitVulnCheck exploitation report

11 more references in the full CVE brief

FAQ

Common Questions.

Microchip Technology (Microsemi) SyncServer S650 was discovered to contain a command injection vulnerability.
Affected: Syncserver S650 Firmware (Microchip). The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Oct 14, 2023.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Is CVE-2022-40022 Running On Your Attack Surface?

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