How severe is CVE-2021-33795?

CVE-2021-33795 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2021-33795 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-33795?

CVE-2021-33795 primarily affects Foxitsoftware Foxit Reader. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-33795?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-33795 published?

CVE-2021-33795 was published on 2021-07-09 and last updated on 2026-06-17.

CVE-2021-33795

CVE-2021-33795 is a medium-severity vulnerability in Foxitsoftware Foxit Reader with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-755.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-755
Affected product: Foxitsoftware Foxit Reader
Published: 2021-07-09
Last modified: 2026-06-17

Description

Foxit Reader before 10.1.4 and PhantomPDF before 10.1.4 produce incorrect PDF document signatures because the certificate name, document owner, and signature author are mishandled.

Frequently asked questions

What is CVE-2021-33795?: Foxit Reader before 10.1.4 and PhantomPDF before 10.1.4 produce incorrect PDF document signatures because the certificate name, document owner, and signature author are mishandled.
How severe is CVE-2021-33795?: CVE-2021-33795 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2021-33795 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-33795?: CVE-2021-33795 primarily affects Foxitsoftware Foxit Reader. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-33795?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-33795 published?: CVE-2021-33795 was published on 2021-07-09 and last updated on 2026-06-17.

References

https://www.foxitsoftware.com/support/security-bulletins.html

Affected products (2)

cpe:2.3:a:foxitsoftware:foxit_reader:*:*:*:*:*:*:*:*
cpe:2.3:a:foxitsoftware:phantompdf:*:*:*:*:*:*:*:*

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