What is CVE-2023-40850?

CVE-2023-40850 is a high-severity vulnerability in Netentsec Ns-Asg, classified under Improper Access Control. CVSS score: 7.5/10. Published 2023-09-13.

How severe is CVE-2023-40850?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2023-40850 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Netentsec Ns-Asg

CVE-2023-40850

netentsec NS-ASG 6.3 is vulnerable to Incorrect Access Control. There is a file leak in the website source code of the application security gateway.

Published 2023-09-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.009 (58.7th percentile), scored 2026-10-23.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 58.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Netentsec Ns-Asg
Netentsec Ns-Asg Firmware — versions 6.3

Weakness classification (CWE)

CWE-284 — Improper Access Control

Public proof-of-concept exploits

flyyue2001/cve

References

github.com/flyyue2001/cve/blob/main/NS-ASG-bak-leakage.md (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-40850?: CVE-2023-40850 is a high-severity vulnerability in Netentsec Ns-Asg, classified under Improper Access Control. CVSS score: 7.5/10. Published 2023-09-13.
How severe is CVE-2023-40850?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2023-40850 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.