CVE-2021-34846: This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Re

Q: How do I fix CVE-2021-34846?

pdf reader: upgrade to newer than 11.0.0.49893; pdf editor: upgrade to newer than 10.1.4.37651. Exact commands for each OS are on this page.

Q: Is CVE-2021-34846 being exploited?

CVE-2021-34846 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-34846 affect?

CVE-2021-34846 affects pdf reader, pdf editor. Severity is high (CVSS 7.8). This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader 11.0.0.49893. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or op

Q: How urgent is CVE-2021-34846?

Priority 50/100. High severity; EPSS top 9%: very likely to be exploited

This month

HIGH 7.8UPGRADEUPGRADE

CVE-2021-34846 is a high-severity flaw (CVSS 7.8) affecting pdf reader, pdf editor. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader 11.0.0.49893. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of Annotation objects. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An

Why this priority

High severity
EPSS top 9%: very likely to be exploited

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	4.0% (top 9%)
CISA exploited list	No
Weakness	CWE-416
Published	2021-08-04
Last modified	2026-06-17

Publisher (CNA): Zero Day Initiative · Vendor: foxit · foxitsoftware

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-08-04 16:15 UTCPublished CVE record published
2026-06-17 03:56 UTCUpdated Record last modified

foxit pdf reader UPGRADE

Affected: <= 11.0.0.49893

Fixed in: newer than 11.0.0.49893

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy pdf-reader || rpm -q pdf-reader || pdf-reader --version

2. UPGRADE to newer than 11.0.0.49893 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade pdf-reader

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade pdf-reader

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

foxitsoftware pdf editor UPGRADE

Affected: <= 10.1.4.37651 · 11.0.0.49893

Fixed in: newer than 10.1.4.37651

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy pdf-editor || rpm -q pdf-editor || pdf-editor --version

2. UPGRADE to newer than 10.1.4.37651 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade pdf-editor

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade pdf-editor

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-34846?

pdf reader: upgrade to newer than 11.0.0.49893; pdf editor: upgrade to newer than 10.1.4.37651. Exact commands for each OS are on this page.

Is CVE-2021-34846 being exploited?

CVE-2021-34846 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-34846 affect?

CVE-2021-34846 affects pdf reader, pdf editor. Severity is high (CVSS 7.8). This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader 11.0.0.49893. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or op

How urgent is CVE-2021-34846?

Priority 50/100. High severity; EPSS top 9%: very likely to be exploited

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References

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