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CVE-2021-34847

58
FAUCET Score

CVE-2021-34847 is a critical vulnerability in Foxit PDF Reader 11.0.0.49893, specifically within its handling of Annotation objects, allowing remote code execution. Exploitation requires user interaction, such as opening a malicious file or visiting a malicious page. With a CVSS score of 7.8 (High), it poses a significant risk, enabling attackers to execute code with the privileges of the current process. Despite its severity, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 11.0.0.49893CPE matchmatch criteria
cpe:2.3:a:foxit:pdf_reader:*:*:*:*:*:*:*:*
<= 10.1.4.37651CPE matchmatch criteria
cpe:2.3:a:foxitsoftware:pdf_editor:*:*:*:*:*:*:*:*
11.0.0.49893CPE matchmatch criteria
cpe:2.3:a:foxitsoftware:pdf_editor:11.0.0.49893:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.8HIGH

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
61.55%
Probability of exploitation in next 30 days
EPSS Percentile
99.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.6155 is in the 99th percentile among its peer group of 11,616 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

foxit.com / support/security-bulletins.html
Vendor Advisory
zerodayinitiative.com / advisories/ZDI-21-929
Third Party AdvisoryVDB Entry