CVE-2023-34936

Name: CVE-2023-34936
Creator: NVD / NIST
Published: 2023-06-28T15:15:10.333+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.71%

Last modified Jun 17, 2026

CVE-2023-34936 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A stack overflow in the UpdateMacClone function of H3C Magic B1STV100R012 allows attackers to cause a Denial of Service (DoS) via a crafted POST request.. EPSS estimates a 0.71% chance of exploitation in the next 30 days.

Description

A stack overflow in the UpdateMacClone function of H3C Magic B1STV100R012 allows attackers to cause a Denial of Service (DoS) via a crafted POST request.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.71%

48.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
H3c	Magic B1st Firmware	100r012

References

https://github.com/h4kuy4/vuln/blob/main/H3C_B1STW/CVE-2023-34936.mdExploit, Third Party Advisory
https://github.com/h4kuy4/vuln/blob/main/H3C_B1STW/CVE-2023-34936.mdExploit, Third Party Advisory

Timeline

Published: Jun 28, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-34936?

A stack overflow in the UpdateMacClone function of H3C Magic B1STV100R012 allows attackers to cause a Denial of Service (DoS) via a crafted POST request.

How severe is CVE-2023-34936?

CVE-2023-34936 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.71% probability of exploitation in the next 30 days.

How do I fix CVE-2023-34936?

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-2023-34936?

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

Scan your code now

Source: NVD / NIST