CVE-2023-27989
Severity Score
6.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
Track
*SSVC
Descriptions
A buffer overflow vulnerability in the CGI program of the Zyxel NR7101 firmware versions prior to V1.00(ABUV.8)C0 could allow a remote authenticated attacker to cause denial of service (DoS) conditions by sending a crafted HTTP request to a vulnerable device.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:Track
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2023-03-09 CVE Reserved
- 2023-06-05 CVE Published
- 2025-01-08 CVE Updated
- 2025-04-15 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CAPEC
References (1)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-buffer-overflow-vulnerability-in-4g-lte-and-5g-nr-outdoor-routers | 2023-06-12 |
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Zyxel Search vendor "Zyxel" | Lte7480-m804 Firmware Search vendor "Zyxel" for product "Lte7480-m804 Firmware" | <= 1.00\(abra.6\)c0 Search vendor "Zyxel" for product "Lte7480-m804 Firmware" and version " <= 1.00\(abra.6\)c0" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Lte7480-m804 Search vendor "Zyxel" for product "Lte7480-m804" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Lte7490-m904 Firmware Search vendor "Zyxel" for product "Lte7490-m904 Firmware" | <= 1.00\(abqy.5\)c0 Search vendor "Zyxel" for product "Lte7490-m904 Firmware" and version " <= 1.00\(abqy.5\)c0" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Lte7490-m904 Search vendor "Zyxel" for product "Lte7490-m904" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Nr7101 Firmware Search vendor "Zyxel" for product "Nr7101 Firmware" | <= 1.00\(abuv.7\)c0 Search vendor "Zyxel" for product "Nr7101 Firmware" and version " <= 1.00\(abuv.7\)c0" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Nr7101 Search vendor "Zyxel" for product "Nr7101" | - | - |
Safe
|
| Zyxel Search vendor "Zyxel" | Nebula Nr7101 Firmware Search vendor "Zyxel" for product "Nebula Nr7101 Firmware" | <= 1.15\(accc.3\)c0 Search vendor "Zyxel" for product "Nebula Nr7101 Firmware" and version " <= 1.15\(accc.3\)c0" | - |
Affected
| in | Zyxel Search vendor "Zyxel" | Nebula Nr7101 Search vendor "Zyxel" for product "Nebula Nr7101" | - | - |
Safe
|