How severe is CVE-2017-14820?

CVE-2017-14820 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2017-14820 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-14820?

CVE-2017-14820 affects Foxitsoftware Foxit Reader. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-14820?

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

When was CVE-2017-14820 published?

CVE-2017-14820 was published on 2017-12-20 and last updated on 2026-06-17.

CVE-2017-14820

CVE-2017-14820 is a medium-severity vulnerability in Foxitsoftware Foxit Reader with a CVSS 3.x base score of 6.5. 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-125.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.3
EPSS exploit prediction: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Foxitsoftware Foxit Reader
Published: 2017-12-20
Last modified: 2026-06-17

Description

This vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of Foxit Reader 8.3.1.21155. 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 tile index of the SOT marker in JPEG2000 images. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated object. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process. Was ZDI-CAN-5012.

Frequently asked questions

What is CVE-2017-14820?: This vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of Foxit Reader 8.3.1.21155. 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 tile index of the SOT marker in JPEG2000 images. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated object. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process. Was ZDI-CAN-5012.
How severe is CVE-2017-14820?: CVE-2017-14820 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2017-14820 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-14820?: CVE-2017-14820 affects Foxitsoftware Foxit Reader. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-14820?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-14820 published?: CVE-2017-14820 was published on 2017-12-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:foxitsoftware:foxit_reader:8.3.1.21155:*:*:*:*:*:*:*

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