SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-3843

An exploitable type confusion vulnerability exists in the way Foxit PDF Reader version 9.0.1.1049 parses files with associated file annotations.

HIGH 8.8EPSS 21.6%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 21.6%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.

Description

An exploitable type confusion vulnerability exists in the way Foxit PDF Reader version 9.0.1.1049 parses files with associated file annotations. A specially crafted PDF document can lead to an object of invalid type to be dereferenced, which can potentially lead to sensitive memory disclosure, and possibly to arbitrary code execution. An attacker needs to trick the user into opening the malicious file to trigger this vulnerability. If the browser plugin extension is enabled, visiting a malicious site can also trigger the vulnerability.

CVSS 3.1
8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
21.56% probability · 98th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-704
Affected
foxitsoftware/foxit reader
Source
talos-cna@cisco.com
EPSS trend
0%13%25%27 October 2026: 21.56%27 October 202627 October 2026

EPSS 21.6% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.