CVE-2022-36557

Name: CVE-2022-36557
Creator: NVD / NIST
Published: 2022-08-29T23:15:08.52+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.83%

Last modified Jun 17, 2026

CVE-2022-36557 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Seiko SkyBridge MB-A100/A110 v4.2.0 and below was discovered to contain an arbitrary file upload vulnerability via the restore backup function. This vulnerability allows attackers to execute arbitrary code via a crafted html file.. EPSS estimates a 0.83% chance of exploitation in the next 30 days.

Description

Seiko SkyBridge MB-A100/A110 v4.2.0 and below was discovered to contain an arbitrary file upload vulnerability via the restore backup function. This vulnerability allows attackers to execute arbitrary code via a crafted html file.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

0.83%

53.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-434

Affected Software

Vendor	Product	Versions
Seiko-Sol	Skybridge Mb-A100 Firmware	<= 4.2.0
Seiko-Sol	Skybridge Mb-A110 Firmware	<= 4.2.0

References

https://gist.github.com/Nwqda/88232102fed50b54c43871e88e993b54Broken Link
https://www.seiko-sol.co.jp/products/skybridge/lineup/mb-a100/Product, Vendor Advisory
https://gist.github.com/Nwqda/88232102fed50b54c43871e88e993b54Broken Link
https://www.seiko-sol.co.jp/products/skybridge/lineup/mb-a100/Product, Vendor Advisory

Timeline

Published: Aug 29, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-36557?

How severe is CVE-2022-36557?

CVE-2022-36557 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.83% probability of exploitation in the next 30 days.

How do I fix CVE-2022-36557?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-36557?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST