What is CVE-2015-0874?

CVE-2015-0874 is a medium-severity vulnerability in Apple Iphone OS, classified under Improper Certificate Validation. CVSS score: 5.9/10. Published 2017-09-26.

How severe is CVE-2015-0874?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Vulnerability in Apple Iphone OS

CVE-2015-0874

Smartphone Passbook 1.0.0 does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to obtain sensitive information from encrypted communications via a crafted certificate.

Vulnerability class: Improper Certificate Validation

Published 2017-09-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.008 (55.8th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 55.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-295 — Improper Certificate Validation

References

www.securityfocus.com/bid/72597 (VDB Entry, Third Party Advisory, vdb-entry)
jvndb.jvn.jp/en/contents/2015/JVNDB-2015-000015.html (VDB Entry, Third Party Advisory, third-party-advisory)
jvn.jp/en/jp/JVN14522790/index.html (VDB Entry, Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2015-0874?: CVE-2015-0874 is a medium-severity vulnerability in Apple Iphone OS, classified under Improper Certificate Validation. CVSS score: 5.9/10. Published 2017-09-26.
How severe is CVE-2015-0874?: Medium severity. CVSS v3 base score is 5.9 out of 10.