Is CVE-2020-35931 in the CISA KEV catalog?

No. CVE-2020-35931 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-35931?

CVE-2020-35931 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2020-35931?

CVE-2020-35931 has an EPSS score of 2.29% (81th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-35931?

Upgrade foxit reader to 4.1.1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2020-35931

HIGHEPSS 81th pctl

7.8

CVSS v3

NVD

Description

An issue was discovered in Foxit Reader before 10.1.1 (and before 4.1.1 on macOS) and PhantomPDF before 9.7.5 and 10.x before 10.1.1 (and before 4.1.1 on macOS). An attacker can spoof a certified PDF document via an Evil Annotation Attack because the products fail to consider a null value for a Subtype entry of the Annotation dictionary, in an incremental update.

CWE-754

How to fix

Remediation Available

foxit readerNVD

Affected:< 4.1.1Fixed in:4.1.1CVE-2020-35931derived from NVD

phantompdfNVD

Affected:< 4.1.1Fixed in:4.1.1CVE-2020-35931derived 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 VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

2.29%probability of exploitation in 30 days

81stpercentile

Elevated risk: more likely to be exploited than 81% of all known CVEs.

References

Patch1

foxitsoftware.com

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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.