CVE-2022-23768: Neo Information Systems Home AP NIS-HAP11AC · Improper Access Control
Affects Neo Information Systems Home AP NIS-HAP11ACSource CVE Database V5
Not known to be exploited · CVSS 8.8 High.
Data as of 26 Oct 2026, 06:26 UTC
- EPSS
- 1.0% chance of exploitation in 30 days – higher than 63% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 19 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 2026-10-26.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Neo Information Systems Co., Ltd Home AP NIS-HAP11AC | Affected
| Fixed in– |
AI-suggested
Immediate mitigation steps include disabling the Telnet service on the NIS-HAP11AC device if possible, or restricting access to the Telnet port via firewall rules to trusted internal IP addresses only. Network segmentation should be enforced to isolate the device from critical infrastructure. Organizations should monitor network traffic for unusual Telnet connections and implement intrusion detection systems to flag suspicious activity. Since no official patches are currently available, contacting the vendor for firmware updates or security advisories is crucial. Where feasible, replacing the vulnerable device with a more secure access point that does not expose Telnet externally is recommended. Additionally, enforcing strong network access controls, using VPNs for remote access, and employing secure management protocols such as SSH instead of Telnet will reduce exposure. Regular security audits and vulnerability assessments should be conducted to identify and remediate similar risks.
Description
This Vulnerability in NIS-HAP11AC is caused by an exposed external port for the telnet service. Remote attackers use this vulnerability to induce all attacks such as source code hijacking, remote control of the device.