Medium severity · published Jun 5, 2023
CVE-2023-27989
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…
6.5
CVSS
1%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 63% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LF
Lte7480-m804 Firmware · Zyxel
through 1.00\(abra.6\)c0 · source: NVD
LF
Lte7490-m904 Firmware · Zyxel
through 1.00\(abqy.5\)c0 · source: NVD
NN
Nebula Nr7101 Firmware · Zyxel
through 1.15\(accc.3\)c0 · source: NVD
NF
Nr7101 Firmware · Zyxel
through 1.00\(abuv.7\)c0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-27989
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-27989
Patch
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-buffer-overflow-vulnerability-in-4g-lte-and-5g-nr-outdoor-routers
More from Lte7480-m804 Firmware
9.8
CVE-2022-43389
A buffer overflow vulnerability in the library of the web server in Zyxel NR7101 firmware prior to V1.15(ACCC.3)C0, which could allow an unauthenticated attacker to execute some…
8.8
CVE-2022-43390
A command injection vulnerability in the CGI program of Zyxel NR7101 firmware prior to V1.15(ACCC.3)C0, which could allow an authenticated attacker to execute some OS commands on…
7.5
CVE-2024-8748
A buffer overflow vulnerability in the packet parser of the third-party library "libclinkc" in Zyxel VMG8825-T50K firmware versions through V5.50(ABOM.8.4)C0 could allow an…
6.5
CVE-2022-43392
A buffer overflow vulnerability in the parameter of web server in Zyxel NR7101 firmware prior to V1.15(ACCC.3)C0, which could allow an authenticated attacker to cause…
6.5
CVE-2022-43391
A buffer overflow vulnerability in the parameter of the CGI program in Zyxel NR7101 firmware prior to V1.15(ACCC.3)C0, which could allow an authenticated attacker to cause…