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CVE-2023-6574

26
FAUCET Score

CVE-2023-6574 is a critical unrestricted file upload vulnerability affecting Byzoro Smart S20 devices up to firmware version 20231120. An authenticated attacker can exploit a flaw in the /sysmanage/updateos.php component via an HTTP POST request to upload arbitrary files. This remote vulnerability carries a CVSS score of 8.8 (High), indicating high impact on confidentiality, integrity, and availability. While a public exploit exists, there is no evidence of active exploitation, and it has received minimal community attention or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2023-11-20CPE matchmatch criteria
cpe:2.3:o:byzoro:smart_s20_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
2.8
Impact Score
3.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.58%
Probability of exploitation in next 30 days
EPSS Percentile
72.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0158 is in the 71st percentile among its peer group of 17,844 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / flyyue2001/cve/blob/main/smart_sql_updateos.md
ExploitThird Party Advisory
vuldb.com
Third Party Advisory
vuldb.com
Third Party Advisory
vuldb.com