CVE-2017-16813

A denial-of-service issue was discovered in the Foxit MobilePDF app before 6.1 for iOS. This occurs when a user uploads a file that includes a hexadecimal Unicode character in the "filename" parameter via Wi-Fi, since the app could fail to parse this.

Published: 2018-02-26 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2017-16813 is rated Moderate Risk (40.4/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.76%). Mandatory action: Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2017-16813

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.01% 0.76% +0.75%
2 2025-03-17 0.06% 0.01% -0.04%
3 2023-03-07 0.06%

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-16813

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.0 MEDIUM
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
1.8 3.6 [email protected]
2.9 2.0 LOW
AV:A/AC:M/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:A)
Requires access to an adjacent network segment.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
5.5 2.9 [email protected]

Weakness enumeration for CVE-2017-16813

Affected software / configurations for CVE-2017-16813

Vendor Product Version Raw CPE
foxitsoftware mobilepdf <= 6.0.0 cpe:2.3:a:foxitsoftware:mobilepdf:*:*:*:*:*:iphone_os:*:*

References for CVE-2017-16813

cvelogic Threat Intelligence