CVE-2022-45599: Aztech WMB250AC Mesh Routers Firmware Version 016 2020 is vulnerable to PHP Type Juggling in file /var/www/log

This week

CRITICAL 9.8REMOTEMITIGATE

CVE-2022-45599 is a critical-severity flaw (CVSS 9.8) affecting wmb250ac firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Aztech WMB250AC Mesh Routers Firmware Version 016 2020 is vulnerable to PHP Type Juggling in file /var/www/login.php, allows attackers to gain escalated privileges only when specific conditions regarding a given accounts hashed password.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.0% (top 38%)
CISA exploited list	No
Weakness	CWE-522
Published	2023-02-22
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: aztech

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-02-22 22:15 UTCPublished CVE record published
2026-06-17 05:10 UTCUpdated Record last modified

aztech wmb250ac firmware MITIGATE

Affected: 016_2020

Fixed in: no fixed release known

Safe to downgrade to: a release before 016_2020

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2022-45599?

wmb250ac firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-45599 being exploited?

CVE-2022-45599 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2022-45599 affect?

CVE-2022-45599 affects wmb250ac firmware. Severity is critical (CVSS 9.8). Aztech WMB250AC Mesh Routers Firmware Version 016 2020 is vulnerable to PHP Type Juggling in file /var/www/login.php, allows attackers to gain escalated privileges only when specific conditions regarding a given accounts hashed password.

How urgent is CVE-2022-45599?

Priority 60/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

Related CVEs

CVE-2022-45600 HIGH 8.8 MITIGATE Aztech WMB250AC Mesh Routers Firmware Version 016 2020 devices improperly manage sessions, which allows remote

References

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