CVE has been recently published to the CVE List and has been received by the NVD.
Products
Zyxel ATP series
- V4.32 - V5.38
USG FLEX series
- V4.50 - V5.38
USG FLEX 50(W) series
- V4.16 - V5.38
USG20(W)-VPN series
- V4.16 - V5.38
Source
security@zyxel.com.tw
Tags
CVE-2024-6343 details
Last Modified : Sept. 3, 2024, 12:59 p.m.
Description
A buffer overflow vulnerability in the CGI program of Zyxel ATP series firmware versions from V4.32 through V5.38, USG FLEX series firmware versions from V4.50 through V5.38, USG FLEX 50(W) series firmware versions from V4.16 through V5.38, and USG20(W)-VPN series firmware versions from V4.16 through V5.38 could allow an authenticated attacker with administrator privileges to cause denial of service (DoS) conditions by sending a crafted HTTP request to a vulnerable device.
CVSS Score
| 1 | 2 | 3 | 4.9 | 5 | 6 | 7 | 8 | 9 | 10 |
|---|
Weakness
| Weakness | Name | Description |
|---|---|---|
| CWE-120 | Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') | The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. |
CVSS Data
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Base Score
4.9
Exploitability Score
1.2
Impact Score
3.6
Base Severity
MEDIUM
Vector String : CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
References
| URL | Source |
|---|---|
| https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-firewalls-09-03-2024 | security@zyxel.com.tw |