High severity · published Dec 31, 2020
CVE-2020-35931
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)
7.8
CVSS
2.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.3% · higher than 83% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FR
Foxit Reader · Foxitsoftware
before 10.1.1; before 4.1.1 · source: NVD
PH
Phantompdf · Foxitsoftware
before 9.7.5; 10.0.0 before 10.1.1; before 4.1.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-35931
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-35931
Patch
https://www.foxitsoftware.com/support/security-bulletins.html
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