Is CVE-2020-25097 in the CISA KEV catalog?

No. CVE-2020-25097 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-25097?

CVE-2020-25097 has a CVSS v3 base score of 8.6 (HIGH).

What is the EPSS score for CVE-2020-25097?

CVE-2020-25097 has an EPSS score of 8.16% (94th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-25097?

Upgrade squid on debian 11 to 4.13-8 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2020-25097

HIGHEPSS 94th pctl

8.6

CVSS v3

NVD

Description

An issue was discovered in Squid through 4.13 and 5.x through 5.0.4. Due to improper input validation, it allows a trusted client to perform HTTP Request Smuggling and access services otherwise forbidden by the security controls. This occurs for certain uri_whitespace configuration settings.

CWE-20Improper Input Validation CWE-444

How to fix

Remediation Available

squidDebian

Fixed in:4.13-8CVE-2020-25097

squidUbuntu

Fixed in:3.5.12-1ubuntu7.16USN-4895-1

Fixed in:3.5.27-1ubuntu1.10USN-4895-1

Fixed in:4.10-1ubuntu1.3USN-4895-1

squid3Ubuntu

Fixed in:3.5.12-1ubuntu7.16USN-4895-1

Fixed in:3.5.27-1ubuntu1.10USN-4895-1

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

ScopeChanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

8.16%probability of exploitation in 30 days

94thpercentile

High risk: more likely to be exploited than 94% of all known CVEs.

References

Patch3

Third-Party Advisory3

Other references3

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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.