CVE-2023-6574: A vulnerability was found in Byzoro Smart S20 up to 20231120 and classified as critical

Q: How do I fix CVE-2023-6574?

smart s20 firmware: upgrade to newer than 2023-11-20. Exact commands for each OS are on this page.

Q: Is CVE-2023-6574 being exploited?

CVE-2023-6574 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2023-6574 affect?

CVE-2023-6574 affects smart s20 firmware. Severity is medium (CVSS 6.3). A vulnerability was found in Byzoro Smart S20 up to 20231120 and classified as critical. Affected by this issue is some unknown functionality of the file /sysmanage/updateos.php of the component HTTP POST Request Handler. The manipulation o

Q: How urgent is CVE-2023-6574?

Priority 46/100. Public exploit reference

This month

MEDIUM 6.3UPGRADE

CVE-2023-6574 is a medium-severity flaw (CVSS 6.3) affecting smart s20 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was found in Byzoro Smart S20 up to 20231120 and classified as critical. Affected by this issue is some unknown functionality of the file /sysmanage/updateos.php of the component HTTP POST Request Handler. The manipulation of the argument 1_file_upload leads to unrestricted upload. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. VDB-247154 is the identifier assigned to this vulner

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.6% (top 25%)
CISA exploited list	No
Weakness	CWE-434
Published	2023-12-07
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: byzoro

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-12-07 20:15 UTCPublished CVE record published
2026-06-17 06:51 UTCUpdated Record last modified

byzoro smart s20 firmware UPGRADE

Affected: <= 2023-11-20

Fixed in: newer than 2023-11-20

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-6574?

smart s20 firmware: upgrade to newer than 2023-11-20. Exact commands for each OS are on this page.

Is CVE-2023-6574 being exploited?

CVE-2023-6574 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-6574 affect?

CVE-2023-6574 affects smart s20 firmware. Severity is medium (CVSS 6.3). A vulnerability was found in Byzoro Smart S20 up to 20231120 and classified as critical. Affected by this issue is some unknown functionality of the file /sysmanage/updateos.php of the component HTTP POST Request Handler. The manipulation o

How urgent is CVE-2023-6574?

Priority 46/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2024-1254 MEDIUM 4.7 UPGRADE A vulnerability, which was classified as critical, was found in Byzoro Smart S20 Management Platform up to 202

References

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