CVE-2017-16813 — A denial-of-service issue was discovered in the Foxit MobilePDF app before 6

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.

01What is this vulnerability?

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.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2018-02-26T22:00:00.000Z
• Last modified: 2024-08-05T20:35:20.959Z

09References

• www.foxitsoftware.com — https://www.foxitsoftware.com/support/security-bulletins.php