Is CVE-2022-40482 in the CISA KEV catalog?

No. CVE-2022-40482 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-40482?

CVE-2022-40482 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2022-40482?

CVE-2022-40482 has an EPSS score of 0.88% (55th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-40482?

Upgrade framework to 9.32.0 or later.

CVE & CISA-KEV Catalog

CVE-2022-40482

MEDIUM

5.3

CVSS v3

NVD

Description

The authentication method in Laravel 8.x through 9.x before 9.32.0 was discovered to be vulnerable to user enumeration via timeless timing attacks with HTTP/2 multiplexing. This is caused by the early return inside the hasValidCredentials method in the Illuminate\Auth\SessionGuard class when a user is found to not exist.

CWE-203

How to fix

Remediation Available

frameworkNVD

Affected:>= 9.0.0, < 9.32.0Fixed in:9.32.0CVE-2022-40482derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Exploit Intelligence

0.88%probability of exploitation in 30 days

55thpercentile

Moderate risk: more likely to be exploited than 55% of all known CVEs.

References

Patch1

github.com

Exploit2

Release Notes1

github.com

Related Vulnerabilities

Other CWE-203 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2017-5753	Medium	5.6	94%	-	Fix
CVE-2003-0190	Medium	5.0	77%	-	Fix
CVE-2017-5715	Medium	5.6	74%	-	Fix
CVE-2018-3639	Medium	5.5	61%	-	Fix
CVE-2023-28770	High	7.5	58%	-	Fix
CVE-2004-1602	Medium	5.0	31%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-05-30.