How severe is CVE-2022-40494?

CVE-2022-40494 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-40494 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-40494?

CVE-2022-40494 affects Ehang-io Nps. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-40494?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2022-40494 published?

CVE-2022-40494 was published on 2022-10-06 and last updated on 2026-06-17.

CVE-2022-40494

CVE-2022-40494 is a critical-severity vulnerability in Ehang-io Nps with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 2% (72nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Ehang-io Nps
Published: 2022-10-06
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2022-40494?: NPS before v0.26.10 was discovered to contain an authentication bypass vulnerability via constantly generating and sending the Auth key and Timestamp parameters.
How severe is CVE-2022-40494?: CVE-2022-40494 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-40494 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-40494?: CVE-2022-40494 affects Ehang-io Nps. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-40494?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2022-40494 published?: CVE-2022-40494 was published on 2022-10-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ehang-io:nps:*:*:*:*:*:*:*:*

More vulnerabilities in Ehang-io Nps

CVE-2019-15119 — Medium (CVSS 5.5): lib/install/install.go in cnlh nps through 0.23.2 uses 0777 permissions for /usr/local/bin/nps and/or /usr/bin/nps,…

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Other CWE-287 (Improper Authentication) vulnerabilities

CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-46389 — Critical (CVSS 10.0): UDS Identity Config builds the Keycloak configuration image (realm, plugins, theme, truststore, JARs) consumed by UDS…
CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

Browse all CWE-287 (Improper Authentication) vulnerabilities →