CVE-2016-4631

ImageIO in Apple iOS before 9.3.3, OS X before 10.11.6, tvOS before 9.2.2, and watchOS before 2.2...

8.8 HighPublic exploit

ImageIO in Apple iOS before 9.3.3, OS X before 10.11.6, tvOS before 9.2.2, and watchOS before 2.2.2 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted TIFF file.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

4.83%Down 25.4 points since Feb 4, 2022

What each source reports

NVD Score used 8.8

Record: CVE-2016-4631
CVSS 3.0: 8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0: 6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness: CWE-119
Updated: 2026-11-02

CVE List No score

Record: CVE-2016-4631
Updated: 2026-11-02

EUVDEUVD-2016-5617 No score

Record: EUVD-2016-5617
Updated: 2026-11-03

GitHub AdvisoriesGHSA-fjwp-9m9r-9pw2 8.8

ImageIO in Apple iOS before 9.3.3, OS X before 10.11.6, tvOS before 9.2.2, and watchOS before 2.2...

Record: GHSA-fjwp-9m9r-9pw2
CVSS 3.0: 8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness: CWE-119
Updated: 2026-11-02

Affected products

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
PoC in GitHub	hansnielsen/tiffdisabler	2016-07-20
PoC in GitHub	l3onkers/FuxiOS	2025-07-31

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, PoC in GitHub

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2016-4631 is a high vulnerability (CVSS 8.8) in Apple Tvos, published July 22, 2016. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 4.83%, the 92nd percentile. No source names a fixed version.

References

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