CVE-2022-38955: n/a
Source CVE Database V5
Not known to be exploited · CVSS 7.5 High.
Data as of 25 Oct 2026, 19:02 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 28% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 20 Sep 2022
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.
What to do
AI-suggested
1. Immediate mitigation should include restricting physical and network access to the Netgear WPN824EXT devices to trusted personnel only, minimizing the risk of MITM attacks during firmware updates. 2. Use secure management networks or VLANs to isolate device management traffic from general user traffic, reducing exposure to attackers. 3. Employ network monitoring and intrusion detection systems to detect anomalous firmware upload activities or unusual device behavior indicative of compromise. 4. Educate and train IT staff and users on the risks of unauthorized firmware updates and social engineering tactics that could lead to malicious firmware installation. 5. Where possible, disable remote firmware update capabilities or require multi-factor authentication for firmware management operations. 6. Regularly audit device firmware versions and configurations to detect unauthorized changes. 7. Engage with Netgear support channels to obtain official patches or firmware updates as they become available and prioritize timely deployment. 8. Consider replacing vulnerable devices with models that implement cryptographically signed firmware verification and secure update mechanisms. 9. Implement network segmentation to limit the impact of compromised devices on critical systems. These measures go beyond generic advice by focusing on operational controls, network architecture, and user awareness tailored to the specific attack vector and device capabilities.
Description
An exploitable firmware modification vulnerability was discovered on the Netgear WPN824EXT WiFi Range Extender. An attacker can conduct a MITM attack to modify the user-uploaded firmware image and bypass the CRC check. A successful attack can either introduce a backdoor to the device or make the device DoS. This affects Firmware Version: 1.1.1_1.1.9.