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Wn533A8 Firmware CVE-2022-34046

HIGH
Incorrect Authorization (CWE-863)
2022-07-20 cve@mitre.org
Authentication Bypass Wn533A8 Firmware Wavlink
7.5
CVSS 3.1 · NVD
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Vulnerability Assessment

Weakness
CWE
CWE-863
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Authorization logic validation
MITRE ATT&CK

1 technique across 1 tactic: Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

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Impact

CVSS score of 7.5 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available.
Exploit ScenarioDerived

A remote attacker could bypass authorization checks to access restricted resources by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.
This Week Schedule remediation this week. Why: HIGH severity + EPSS > 10%.
No patch listed yet 16.6% exploitation probability (EPSS)

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AnalysisAI

An access control issue in Wavlink WN533A8 M33A8.V5030.190716 allows attackers to obtain usernames and passwords via view-source:http://IP_ADDRESS/sysinit.shtml?r=52300 and searching for. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Review and test authorization logic, implement consistent access control checks, use centralized authorization framework.

Affects your stack

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Technical ContextAI · show details

This vulnerability is classified as Incorrect Authorization (CWE-863), which allows attackers to bypass authorization checks to access restricted resources. An access control issue in Wavlink WN533A8 M33A8.V5030.190716 allows attackers to obtain usernames and passwords via view-source:http://IP_ADDRESS/sysinit.shtml?r=52300 and searching for [logincheck(user);]. Affected products include: Wavlink Wn533A8 Firmware.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

NVD PRIMARY 7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

DescriptionNVD

An access control issue in Wavlink WN533A8 M33A8.V5030.190716 allows attackers to obtain usernames and passwords via view-source:http://IP_ADDRESS/sysinit.shtml?r=52300 and searching for [logincheck(user);].

Threat Intelligence Overview

EPSS Score
16.6%
Top 3% exploitable
Exploit
POC
Public exploit code exists
Data Quality
3 sources
Confidence: Low
NVD CVE.org EPSS POC (1) Exploit-DB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC Yes
EPSS 16.6%
Patch available No
Active threat Yes
Deciding rule
HIGH severity + EPSS > 10%
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
Poc
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
Medium

Priority Score

75
Low Medium High Critical
KEV: 0
EPSS: +17
CVSS: +38
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication Bypass CRITICAL

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Affected Products (CPE)NVD

cpe:2.3:o:wavlink:wn533a8_firmware:m33a8.v5030.190716:*:*:*:*:*:*:*

More in Wn533A8 Firmware

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CVE-2022-35538 CRITICAL POC
9.8 Aug 10

WAVLINK WN572HP3, WN533A8, WN530H4, WN535G3, WN531P3 wireless.cgi has no filtering on parameters: delete_list, delete_al
CVE-2022-35537 CRITICAL POC
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WAVLINK WN572HP3, WN533A8, WN530H4, WN535G3, WN531P3 wireless.cgi has no filtering on parameters: mac_5g and Newname, wh
CVE-2022-35536 CRITICAL POC
9.8 Aug 10

WAVLINK WN572HP3, WN533A8, WN530H4, WN535G3, WN531P3 qos.cgi has no filtering on parameters: qos_bandwith and qos_dat, w
CVE-2022-35535 CRITICAL POC
9.8 Aug 10

WAVLINK WN572HP3, WN533A8, WN530H4, WN535G3, WN531P3 wireless.cgi has no filtering on parameter macAddr, which leads to

CVE-2022-35534 CRITICAL POC
9.8 Aug 10

WAVLINK WN572HP3, WN533A8, WN530H4, WN535G3, WN531P3 wireless.cgi has no filtering on parameter hiddenSSID32g and SSID2G
CVE-2022-35533 CRITICAL POC
9.8 Aug 10

WAVLINK WN572HP3, WN533A8, WN530H4, WN535G3, WN531P3 qos.cgi has no filtering on parameters: cli_list and cli_num, which
CVE-2022-35526 CRITICAL POC
9.8 Aug 10

WAVLINK WN572HP3, WN533A8, WN530H4, WN535G3, WN531P3 login.cgi has no filtering on parameter key, which leads to command
CVE-2022-35525 CRITICAL POC
9.8 Aug 10

WAVLINK WN572HP3, WN533A8, WN530H4, WN535G3, WN531P3 adm.cgi has no filtering on parameter led_switch, which leads to co
CVE-2022-35524 CRITICAL POC
9.8 Aug 10

WAVLINK WN572HP3, WN533A8, WN530H4, WN535G3, WN531P3 adm.cgi has no filtering on parameters: wlan_signal, web_pskValue,

CVE-2022-35523 CRITICAL POC
9.8 Aug 10

WAVLINK WN572HP3, WN533A8, WN530H4, WN535G3, WN531P3 firewall.cgi has no filtering on parameter del_mac and parameter fl
CVE-2022-35522 CRITICAL POC
9.8 Aug 10

WAVLINK WN572HP3, WN533A8, WN530H4, WN535G3, WN531P3 adm.cgi has no filtering on parameters: ppp_username, ppp_passwd, r
CVE-2022-35521 CRITICAL POC
9.8 Aug 10

WAVLINK WN572HP3, WN533A8, WN530H4, WN535G3, WN531P3 firewall.cgi has no filtering on parameters: remoteManagementEnable

Same weakness CWE-863 – Incorrect Authorization

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Same technique Authentication Bypass

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CVE-2024-0012 CRITICAL POC
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References

Advisories & patches
REF http://packetstormsecurity.com/files/167890/Wavlink-WN533A8-Password-Disclosure.html

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