9.8

CVE-2022-40494: ehang-io nps Improper Authentication

CVSS: 9.8v3.1CriticalAnalyzed
Published 06-10-2022Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2022-40494 is a critical (CVSS 9.8) Improper Authentication vulnerability in ehang-io nps. EPSS estimates a 2.06% chance of exploitation in the next 30 days, higher than 81.1% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
2.06%
0%100%
Low · +0.34 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 06-10-2022
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

NPS before v0.26.10 was discovered to contain an authentication bypass vulnerability via constantly generating and sending the Auth key and Timestamp parameters.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

2.06%

Chance of exploitation in the next 30 days

Percentile

81%

Versus all other CVEs

30-day change

+0.34 pp

From 1.72% on 21-09-2026

21-09-202621-10-2026
EPSS score
2.06%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (blog.carrot2.cn)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Ehang-io1 product
  • nps≥ 0.19.0, ≤ 0.26.10

1 vendor · 1 product

References

2 links