How severe is CVE-2017-8059?

CVE-2017-8059 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-8059 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-8059?

CVE-2017-8059 primarily affects Foxitsoftware Foxit Pdf. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-8059?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2017-8059 published?

CVE-2017-8059 was published on 2017-05-05 and last updated on 2026-06-17.

CVE-2017-8059

CVE-2017-8059 is a high-severity vulnerability in Foxitsoftware Foxit Pdf with a CVSS 3.x base score of 8.1. 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-295.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-295
Affected product: Foxitsoftware Foxit Pdf
Published: 2017-05-05
Last modified: 2026-06-17

Description

Acceptance of invalid/self-signed TLS certificates in "Foxit PDF - PDF reader, editor, form, signature" before 5.4 for iOS allows a man-in-the-middle and/or physically proximate attacker to silently intercept login information (username/password), in addition to the static authentication token if the user is already logged in.

Frequently asked questions

What is CVE-2017-8059?: Acceptance of invalid/self-signed TLS certificates in "Foxit PDF - PDF reader, editor, form, signature" before 5.4 for iOS allows a man-in-the-middle and/or physically proximate attacker to silently intercept login information (username/password), in addition to the static authentication token if the user is already logged in.
How severe is CVE-2017-8059?: CVE-2017-8059 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-8059 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-8059?: CVE-2017-8059 primarily affects Foxitsoftware Foxit Pdf. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-8059?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2017-8059 published?: CVE-2017-8059 was published on 2017-05-05 and last updated on 2026-06-17.

References

https://medium.com/%40chronic_9612/follow-up-76-popular-apps-confirmed-vulnerable-to-silent-interception-of-tls-protected-data-64185035029f

Affected products (2)

cpe:2.3:a:foxitsoftware:foxit_pdf:5.2.1:*:*:*:*:iphone_os:*:*
cpe:2.3:a:foxitsoftware:foxit_pdf:5.3.2:*:*:*:*:iphone_os:*:*

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