Is CVE-2021-37704 in the CISA KEV catalog?

No. CVE-2021-37704 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-37704?

CVE-2021-37704 has a CVSS v3 base score of 5.4 (MEDIUM).

What is the EPSS score for CVE-2021-37704?

CVE-2021-37704 has an EPSS score of 6.13% (93th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-37704?

Upgrade phpfastcache to 8.0.7 or later.

CVE & CISA-KEV Catalog

CVE-2021-37704

MEDIUMEPSS 93th pctl

5.4

CVSS v3

NVD

Description

PhpFastCache is a high-performance backend cache system (packagist package phpfastcache/phpfastcache). In versions before 6.1.5, 7.1.2, and 8.0.7 the `phpinfo()` can be exposed if the `/vendor` is not protected from public access. This is a rare situation today since the vendor directory is often located outside the web directory or protected via server rule (.htaccess, etc). Only the v6, v7 and v8 will be patched respectively in 8.0.7, 7.1.2, 6.1.5. Older versions such as v5, v4 are not longer supported and will **NOT** be patched. As a workaround, protect the `/vendor` directory from public access.

CWE-200Information Exposure CWE-668

How to fix

Remediation Available

phpfastcacheNVD

Affected:>= 8.0.0, < 8.0.7Fixed in:8.0.7CVE-2021-37704derived 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 RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityLow

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

Exploit Intelligence

6.13%probability of exploitation in 30 days

93rdpercentile

High risk: more likely to be exploited than 93% of all known CVEs.

References

Patch2

Exploit1

github.com

Third-Party Advisory5

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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 2024-11-21.