CVE-2016-4655

Apple iOS Information Disclosure

5.5 MEDIUMActively exploited (CISA KEV)Public exploitEPSS 33.4%

Published25 Aug 2016
Added to CISA KEV24 May 2022
Remediation due14 Jun 2022

Description

The kernel in Apple iOS before 9.3.5 allows attackers to obtain sensitive information from memory via a crafted app.

CVSS 3.1 breakdown

Attack vectorLocal

Attack complexityLow

Privileges requiredNone

User interactionRequired

ScopeUnchanged

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Affected products

Apple iPhone OS< 9.3.5 · 10.0

Remediation

Fixed in

Apple iPhone OS≥ 9.3.5

Patch & vendor advisories

References

http://lists.apple.com/archives/security-announce/2016/Aug/msg00000.htmlMailing ListVendor AdvisoryBroken Link
http://lists.apple.com/archives/security-announce/2016/Sep/msg00005.htmlMailing ListVendor AdvisoryBroken Link
https://blog.lookout.com/blog/2016/08/25/trident-pegasus/Broken Link
https://support.apple.com/HT207107Vendor Advisory
https://support.apple.com/HT207145Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-4655US Government Resource
https://www.exploit-db.com/exploits/44836/ExploitThird Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/92651Broken LinkThird Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/92965Broken LinkThird Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1036694Broken LinkThird Party AdvisoryVDB Entry

Frequently asked

Is CVE-2016-4655 being actively exploited?

Yes. CVE-2016-4655 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 24 May 2022.

How severe is CVE-2016-4655?

CVE-2016-4655 has a CVSS 3.1 base score of 5.5, rated medium. EPSS estimates a 33.4% probability of exploitation.

Which products are affected by CVE-2016-4655?

Affected products include Apple iPhone OS.

How do I fix CVE-2016-4655?

Upgrade affected software to a fixed version, for example Apple iPhone OS 9.3.5 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2016-4655 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.