CVE-2017-9591

Name: CVE-2017-9591
Creator: NVD / NIST
Published: 2017-06-16T12:29:01.207+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.9/10EPSS 0.48%

Last modified Jun 17, 2026

CVE-2017-9591 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. The "PCB Mobile" by Phelps County Bank app 3.0.2 -- aka pcb-mobile/id436891295 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.. EPSS estimates a 0.48% chance of exploitation in the next 30 days.

Description

The "PCB Mobile" by Phelps County Bank app 3.0.2 -- aka pcb-mobile/id436891295 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

Metrics

CVSS 3.1

5.9/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

0.48%

37.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-295

Affected Software

Vendor	Product	Versions
Mypcb	Pcb Mobile	3.0.2

References

Timeline

Published: Jun 16, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-9591?

How severe is CVE-2017-9591?

CVE-2017-9591 has a CVSS score of 5.9/10 (MEDIUM severity). The EPSS model estimates a 0.48% probability of exploitation in the next 30 days.

How do I fix CVE-2017-9591?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-9591?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST