Which products and versions are affected by CVE-2023-23333?

Affected: Solarview Compact Firmware (Contec). The full list is in the CVE brief.

Is CVE-2023-23333 being exploited in the wild?

It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Jul 5, 2023.

Is CVE-2023-23333 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-2023-23333?

Public exploit code is available.

Is there a fix for CVE-2023-23333?

Fixed versions are available, including Solarview Compact Firmware <=6.00, Solarview Compact Firmware 6.00.

How urgently should CVE-2023-23333 be patched?

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

Request A Demo

Vulnerability Intelligence

CVE-2023-23333

Q: What is CVE-2023-23333?

There is a command injection vulnerability in SolarView Compact through 6.00, attackers can execute commands by bypassing internal restrictions through downloader.php.

Q: How urgently should CVE-2023-23333 be patched?

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

CriticalExploitedPublic exploit

There is a command injection vulnerability in SolarView Compact through 6.00, attackers can execute commands by bypassing internal restrictions through downloader.php.

Published Feb 6, 2023 · Updated Mar 26, 2025

Key Facts

Patch immediately

CVE-2023-23333 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Solarview Compact Firmware (Contec).
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Jul 5, 2023. Public exploit code is available.
EPSS estimates a 99% probability of exploitation in the next 30 days.
Fixed versions are available, including Solarview Compact Firmware <=6.00, Solarview Compact Firmware 6.00.
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)

99%

Higher than 99.9% 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-2023-23333 brief as a PDF

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

Description

There is a command injection vulnerability in SolarView Compact through 6.00, attackers can execute commands by bypassing internal restrictions through downloader.php.

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
Industry KEV feed	Jul 5, 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
Solarview Compact FirmwareContec	See advisory	6.00

Patched Releases

Solarview Compact Firmware

<=6.00

Timeline

Publicly disclosed
Feb 6, 2023
Added to Industry KEV feed
Jul 5, 2023
Added to CIRCL KEV
Oct 14, 2023
Last updated
Mar 26, 2025

Weakness Type

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

References

9 more references in the full CVE brief

FAQ

Common Questions.

There is a command injection vulnerability in SolarView Compact through 6.00, attackers can execute commands by bypassing internal restrictions through downloader.php.
Affected: Solarview Compact Firmware (Contec). The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Jul 5, 2023.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Solarview Compact Firmware <=6.00, Solarview Compact Firmware 6.00.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Is CVE-2023-23333 Running On Your Attack Surface?

Brandefense maps vulnerabilities like this one to your internet-facing assets and tells you exactly where to patch.

Request A Demo