CVE-2022-32548

An issue was discovered on certain DrayTek Vigor routers before July 2022 such as the Vigor3910...

10.0 CriticalPublic exploit

An issue was discovered on certain DrayTek Vigor routers before July 2022 such as the Vigor3910 before 4.3.1.1. /cgi-bin/wlogin.cgi has a buffer overflow via the username or password to the aa or ab field.

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: High
Integrity: High
Availability: High

Exploit likelihood

34.0%Up 33.1 points since Aug 29, 2022

What each source reports

CVE List Score used 10.0

Record: CVE-2022-32548
CVSS 3.1: 10.0 CriticalCVSS:3.1/AC:L/AV:N/A:H/C:H/I:H/PR:N/S:C/UI:N
Updated: 2026-11-02

EUVDEUVD-2022-35616 10.0

Record: EUVD-2022-35616
CVSS 3.1: 10.0 CriticalCVSS:3.1/AC:L/AV:N/A:H/C:H/I:H/PR:N/S:C/UI:N
Updated: 2026-11-03

GitHub AdvisoriesGHSA-r59x-897w-8h5j 9.8

An issue was discovered on certain DrayTek Vigor routers before July 2022 such as the Vigor3910...

Record: GHSA-r59x-897w-8h5j
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-120
Updated: 2026-11-02

NVD 10.0

Record: CVE-2022-32548
CVSS 3.1: 10.0 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-120
Updated: 2026-11-02

Affected products

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Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
PoC in GitHub	MosaedH/CVE-2022-32548-RCE-POC	2023-10-27

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, PoC in GitHub

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2022-32548 is a critical vulnerability (CVSS 10.0) in Draytek Vigor1000b Firmware, published August 29, 2022. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 34.0%, the 98th percentile. No source names a fixed version.