CVE-2022-32548

Exp

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.

Published: 2022-08-29 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-32548 is rated High Exploit Risk (84.5/100): CVSS Critical severity, with high exploitation likelihood (EPSS 65.57%, 98th percentile). 2 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2022-32548

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2022-32548

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-03-15 70.53% 65.57% -4.96%
2 2026-03-04 64.92% 70.53% +5.61%
3 2026-03-02 — 64.92% —

Full EPSS history (31 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-32548

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
10.0 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 6.0 [email protected]
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]

Weakness enumeration for CVE-2022-32548

Affected software / configurations for CVE-2022-32548

Vendor Product Version Raw CPE
draytek vigor3910_firmware < 4.3.1.1 cpe:2.3:o:draytek:vigor3910_firmware:*:*:*:*:*:*:*:*
draytek vigor1000b_firmware < 4.3.1.1 cpe:2.3:o:draytek:vigor1000b_firmware:*:*:*:*:*:*:*:*
draytek vigor2962_firmware < 4.3.1.1 cpe:2.3:o:draytek:vigor2962_firmware:*:*:*:*:*:*:*:*
draytek vigor2962p_firmware < 4.3.1.1 cpe:2.3:o:draytek:vigor2962p_firmware:*:*:*:*:*:*:*:*
draytek vigor2927_firmware < 4.4.0 cpe:2.3:o:draytek:vigor2927_firmware:*:*:*:*:*:*:*:*
draytek vigor2927ax_firmware < 4.4.0 cpe:2.3:o:draytek:vigor2927ax_firmware:*:*:*:*:*:*:*:*
draytek vigor2927ac_firmware < 4.4.0 cpe:2.3:o:draytek:vigor2927ac_firmware:*:*:*:*:*:*:*:*
draytek vigor2927vac_firmware < 4.4.0 cpe:2.3:o:draytek:vigor2927vac_firmware:*:*:*:*:*:*:*:*
draytek vigor2927l_firmware < 4.4.0 cpe:2.3:o:draytek:vigor2927l_firmware:*:*:*:*:*:*:*:*
draytek vigor2927lac_firmware < 4.4.0 cpe:2.3:o:draytek:vigor2927lac_firmware:*:*:*:*:*:*:*:*
draytek vigor2915_firmware < 4.3.3.2 cpe:2.3:o:draytek:vigor2915_firmware:*:*:*:*:*:*:*:*
draytek vigor2915ac_firmware < 4.3.3.2 cpe:2.3:o:draytek:vigor2915ac_firmware:*:*:*:*:*:*:*:*
draytek vigor2952_firmware < 3.9.7.2 cpe:2.3:o:draytek:vigor2952_firmware:*:*:*:*:*:*:*:*
draytek vigor2952p_firmware < 3.9.7.2 cpe:2.3:o:draytek:vigor2952p_firmware:*:*:*:*:*:*:*:*
draytek vigor3220_firmware < 3.9.7.2 cpe:2.3:o:draytek:vigor3220_firmware:*:*:*:*:*:*:*:*
draytek vigor2926_firmware < 3.9.8.1 cpe:2.3:o:draytek:vigor2926_firmware:*:*:*:*:*:*:*:*
draytek vigor2926n_firmware < 3.9.8.1 cpe:2.3:o:draytek:vigor2926n_firmware:*:*:*:*:*:*:*:*
draytek vigor2926ac_firmware < 3.9.8.1 cpe:2.3:o:draytek:vigor2926ac_firmware:*:*:*:*:*:*:*:*
draytek vigor2926vac_firmware < 3.9.8.1 cpe:2.3:o:draytek:vigor2926vac_firmware:*:*:*:*:*:*:*:*
draytek vigor2926l_firmware < 3.9.8.1 cpe:2.3:o:draytek:vigor2926l_firmware:*:*:*:*:*:*:*:*
draytek vigor2926ln_firmware < 3.9.8.1 cpe:2.3:o:draytek:vigor2926ln_firmware:*:*:*:*:*:*:*:*
draytek vigor2926lac_firmware < 3.9.8.1 cpe:2.3:o:draytek:vigor2926lac_firmware:*:*:*:*:*:*:*:*
draytek vigor2862_firmware < 3.9.8.1 cpe:2.3:o:draytek:vigor2862_firmware:*:*:*:*:*:*:*:*
draytek vigor2862n_firmware < 3.9.8.1 cpe:2.3:o:draytek:vigor2862n_firmware:*:*:*:*:*:*:*:*
draytek vigor2862ac_firmware < 3.9.8.1 cpe:2.3:o:draytek:vigor2862ac_firmware:*:*:*:*:*:*:*:*
draytek vigor2862vac_firmware < 3.9.8.1 cpe:2.3:o:draytek:vigor2862vac_firmware:*:*:*:*:*:*:*:*
draytek vigor2862b_firmware < 3.9.8.1 cpe:2.3:o:draytek:vigor2862b_firmware:*:*:*:*:*:*:*:*
draytek vigor2862bn_firmware < 3.9.8.1 cpe:2.3:o:draytek:vigor2862bn_firmware:*:*:*:*:*:*:*:*
draytek vigor2862l_firmware < 3.9.8.1 cpe:2.3:o:draytek:vigor2862l_firmware:*:*:*:*:*:*:*:*
draytek vigor2862ln_firmware < 3.9.8.1 cpe:2.3:o:draytek:vigor2862ln_firmware:*:*:*:*:*:*:*:*
draytek vigor2862lac_firmware < 3.9.8.1 cpe:2.3:o:draytek:vigor2862lac_firmware:*:*:*:*:*:*:*:*
draytek vigor2620l_firmware < 3.9.8.1 cpe:2.3:o:draytek:vigor2620l_firmware:*:*:*:*:*:*:*:*
draytek vigor2620ln_firmware < 3.9.8.1 cpe:2.3:o:draytek:vigor2620ln_firmware:*:*:*:*:*:*:*:*
draytek vigorlte_200n_firmware < 3.9.8.1 cpe:2.3:o:draytek:vigorlte_200n_firmware:*:*:*:*:*:*:*:*
draytek vigor2133_firmware < 3.9.6.4 cpe:2.3:o:draytek:vigor2133_firmware:*:*:*:*:*:*:*:*
draytek vigor2133n_firmware < 3.9.6.4 cpe:2.3:o:draytek:vigor2133n_firmware:*:*:*:*:*:*:*:*
draytek vigor2133ac_firmware < 3.9.6.4 cpe:2.3:o:draytek:vigor2133ac_firmware:*:*:*:*:*:*:*:*
draytek vigor2133vac_firmware < 3.9.6.4 cpe:2.3:o:draytek:vigor2133vac_firmware:*:*:*:*:*:*:*:*
draytek vigor2133fvac_firmware < 3.9.6.4 cpe:2.3:o:draytek:vigor2133fvac_firmware:*:*:*:*:*:*:*:*
draytek vigor2762_firmware < 3.9.6.4 cpe:2.3:o:draytek:vigor2762_firmware:*:*:*:*:*:*:*:*
draytek vigor2762n_firmware < 3.9.6.4 cpe:2.3:o:draytek:vigor2762n_firmware:*:*:*:*:*:*:*:*
draytek vigor2762ac_firmware < 3.9.6.4 cpe:2.3:o:draytek:vigor2762ac_firmware:*:*:*:*:*:*:*:*
draytek vigor2762vac_firmware < 3.9.6.4 cpe:2.3:o:draytek:vigor2762vac_firmware:*:*:*:*:*:*:*:*
draytek vigor165_firmware < 4.2.4 cpe:2.3:o:draytek:vigor165_firmware:*:*:*:*:*:*:*:*
draytek vigor166_firmware < 4.2.4 cpe:2.3:o:draytek:vigor166_firmware:*:*:*:*:*:*:*:*
draytek vigor2135_firmware < 4.4.2 cpe:2.3:o:draytek:vigor2135_firmware:*:*:*:*:*:*:*:*
draytek vigor2135ac_firmware < 4.4.2 cpe:2.3:o:draytek:vigor2135ac_firmware:*:*:*:*:*:*:*:*
draytek vigor2135vac_firmware < 4.4.2 cpe:2.3:o:draytek:vigor2135vac_firmware:*:*:*:*:*:*:*:*
draytek vigor2135fvac_firmware < 4.4.2 cpe:2.3:o:draytek:vigor2135fvac_firmware:*:*:*:*:*:*:*:*
draytek vigor2765_firmware < 4.4.2 cpe:2.3:o:draytek:vigor2765_firmware:*:*:*:*:*:*:*:*
draytek vigor2765ac_firmware < 4.4.2 cpe:2.3:o:draytek:vigor2765ac_firmware:*:*:*:*:*:*:*:*
draytek vigor2765vac_firmware < 4.4.2 cpe:2.3:o:draytek:vigor2765vac_firmware:*:*:*:*:*:*:*:*
draytek vigor2766_firmware < 4.4.2 cpe:2.3:o:draytek:vigor2766_firmware:*:*:*:*:*:*:*:*
draytek vigor2766ac_firmware < 4.4.2 cpe:2.3:o:draytek:vigor2766ac_firmware:*:*:*:*:*:*:*:*
draytek vigor2766vac_firmware < 4.4.2 cpe:2.3:o:draytek:vigor2766vac_firmware:*:*:*:*:*:*:*:*
draytek vigor2832_firmware < 3.9.6 cpe:2.3:o:draytek:vigor2832_firmware:*:*:*:*:*:*:*:*
draytek vigor2865_firmware < 4.4.0 cpe:2.3:o:draytek:vigor2865_firmware:*:*:*:*:*:*:*:*
draytek vigor2865ax_firmware < 4.4.0 cpe:2.3:o:draytek:vigor2865ax_firmware:*:*:*:*:*:*:*:*
draytek vigor2865ac_firmware < 4.4.0 cpe:2.3:o:draytek:vigor2865ac_firmware:*:*:*:*:*:*:*:*
draytek vigor2865vac_firmware < 4.4.0 cpe:2.3:o:draytek:vigor2865vac_firmware:*:*:*:*:*:*:*:*
draytek vigor2865l_firmware < 4.4.0 cpe:2.3:o:draytek:vigor2865l_firmware:*:*:*:*:*:*:*:*
draytek vigor2865lac_firmware < 4.4.0 cpe:2.3:o:draytek:vigor2865lac_firmware:*:*:*:*:*:*:*:*
draytek vigor2866_firmware < 4.4.0 cpe:2.3:o:draytek:vigor2866_firmware:*:*:*:*:*:*:*:*
draytek vigor2866ax_firmware < 4.4.0 cpe:2.3:o:draytek:vigor2866ax_firmware:*:*:*:*:*:*:*:*
draytek vigor2866ac_firmware < 4.4.0 cpe:2.3:o:draytek:vigor2866ac_firmware:*:*:*:*:*:*:*:*
draytek vigor2866vac_firmware < 4.4.0 cpe:2.3:o:draytek:vigor2866vac_firmware:*:*:*:*:*:*:*:*
draytek vigor2866l_firmware < 4.4.0 cpe:2.3:o:draytek:vigor2866l_firmware:*:*:*:*:*:*:*:*
draytek vigor2866lac_firmware < 4.4.0 cpe:2.3:o:draytek:vigor2866lac_firmware:*:*:*:*:*:*:*:*

References for CVE-2022-32548

cvelogic Threat Intelligence