CVE-2023-24051: A client side rate limit issue discovered in Connectize AC21000 G6 641.139.1.1256 allows attackers to gain esc

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CRITICAL 9.8REMOTEMITIGATE

CVE-2023-24051 is a critical-severity flaw (CVSS 9.8) affecting ac21000 g6 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A client side rate limit issue discovered in Connectize AC21000 G6 641.139.1.1256 allows attackers to gain escalated privileges via brute force style attacks.

Why this priority

Critical severity
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	0.9% (top 40%)
CISA exploited list	No
Weakness	CWE-307, CWE-863
Published	2023-12-04
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: connectize

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

Am I affected?

Timeline

2023-12-04 23:15 UTCPublished CVE record published
2026-06-17 05:38 UTCUpdated Record last modified

connectize ac21000 g6 firmware MITIGATE

Affected: 641.139.1.1256

Fixed in: no fixed release known

Safe to downgrade to: a release before 641.139.1.1256

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-2023-24051?

ac21000 g6 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-24051 being exploited?

CVE-2023-24051 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-2023-24051 affect?

CVE-2023-24051 affects ac21000 g6 firmware. Severity is critical (CVSS 9.8). A client side rate limit issue discovered in Connectize AC21000 G6 641.139.1.1256 allows attackers to gain escalated privileges via brute force style attacks.

How urgent is CVE-2023-24051?

Priority 54/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2023-24052 CRITICAL 9.8 MITIGATE An issue discovered in Connectize AC21000 G6 641.139.1.1256 allows attackers to gain control of the device via
CVE-2023-24050 MEDIUM 5.4 MITIGATE Cross Site Scripting (XSS) vulnerability in Connectize AC21000 G6 641.139.1.1256 allows attackers to run arbit
CVE-2023-24049 CRITICAL 9.8 MITIGATE An issue was discovered on Connectize AC21000 G6 641.139.1.1256 allows attackers to gain escalated privileges
CVE-2023-24048 HIGH 8.8 MITIGATE Cross Site Request Forgery (CSRF) vulnerability in Connectize AC21000 G6 641.139.1.1256 allows attackers to ga
CVE-2023-24047 MEDIUM 6.8 MITIGATE An Insecure Credential Management issue discovered in Connectize AC21000 G6 641.139.1.1256 allows attackers to

References

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