CVE-2023-43314
Buffer Overflow vulnerability in ZYXEL ZYXEL v.PMG2005-T20B allows a remote attacker to cause a...
** UNSUPPORTED WHEN ASSIGNED **The buffer overflow vulnerability in the Zyxel PMG2005-T20B firmware version V1.00(ABNK.2)b11_C0 could allow an unauthenticated attacker to cause a denial of service condition via a crafted uid.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
** UNSUPPORTED WHEN ASSIGNED **The buffer overflow vulnerability in the Zyxel PMG2005-T20B firmware version V1.00(ABNK.2)b11_C0 could allow an unauthenticated attacker to cause a denial of service condition via a crafted uid.
- Record
CVE-2023-43314- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-120
- Updated
- 2026-11-02
EUVDEUVD-2023-47733
** UNSUPPORTED WHEN ASSIGNED **The buffer overflow vulnerability in the Zyxel PMG2005-T20B firmware version V1.00(ABNK.2)b11_C0 could allow an unauthenticated attacker to cause a denial of service condition via a crafted uid.
- Record
EUVD-2023-47733- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-86c6-5vcx-3893
Buffer Overflow vulnerability in ZYXEL ZYXEL v.PMG2005-T20B allows a remote attacker to cause a...
Buffer Overflow vulnerability in ZYXEL ZYXEL v.PMG2005-T20B allows a remote attacker to cause a denial of service via a crafted script to the uid parameter in the cgi-bin/login.asp component.
- Record
GHSA-86c6-5vcx-3893- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-120
- Updated
- 2026-11-02
NVD
** UNSUPPORTED WHEN ASSIGNED **The buffer overflow vulnerability in the Zyxel PMG2005-T20B firmware version V1.00(ABNK.2)b11_C0 could allow an unauthenticated attacker to cause a denial of service condition via a crafted uid.
- Record
CVE-2023-43314- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-120
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-43314 is a high vulnerability (CVSS 7.5) in Zyxel Pmg2005-t20b, published September 27, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.79%, the 56th percentile. No source names a fixed version.