What is CVE-2016-4704?

CVE-2016-4704 is a high-severity vulnerability in Apple Xcode, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2016-09-18.

How severe is CVE-2016-4704?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in Apple Xcode

CVE-2016-4704

otool in Apple Xcode before 8 allows local users to gain privileges or cause a denial of service (memory corruption and application crash) via unspecified vectors, a different vulnerability than CVE-2016-4705.

Vulnerability class: Buffer Overflow

Published 2016-09-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.003 (22.0th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 22.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Apple Xcode

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

References

www.securitytracker.com/id/1036787 (vdb-entry)
support.apple.com/HT207140 (Vendor Advisory)
www.securityfocus.com/bid/92931 (vdb-entry)
lists.apple.com/archives/security-announce/2016/Sep/msg00003.html (vendor-advisory, Mailing List, Vendor Advisory)

Frequently asked questions

What is CVE-2016-4704?: CVE-2016-4704 is a high-severity vulnerability in Apple Xcode, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2016-09-18.
How severe is CVE-2016-4704?: High severity. CVSS v3 base score is 7.8 out of 10.