CVE-2017-13868: It allows attackers to bypass intended memory-read restrictions via a crafted app

Recommended actionWithin 7 days

Medium technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance.

Fix not verified

What, why and how

An issue was discovered in certain Apple products. iOS before 11.2 is affected. macOS before 10.13.2 is affected. tvOS before 11.2 is affected. watchOS before 4.2 is affected. The issue involves the "Kernel" component. It allows attackers to bypass intended memory-read restrictions via a crafted app.

What

Why

The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

How

An attacker operating through local access may attempt exploitation without authentication after a user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

Why

The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

How

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation

Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.

No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material

Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.

Reference recorded

A structured CVE source labels at least one public reference as exploit material. BlackTree has not independently validated that it is safe, reliable or weaponised.

Likely attack path: local access → Exposure of Sensitive Information to an Unauthorized Actor → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface: Local
Privileges required: None: unauthenticated exploitation is possible
User interaction: Required interaction required
Attack complexity: Low: no specialised conditions are recorded
Security boundary: Unchanged: impact remains within the vulnerable component's security authority
Weakness ? CWE means Common Weakness Enumeration: a standard category for the underlying weakness.: CWE-200 ↗
CWE-200: Exposure of Sensitive Information to an Unauthorized Actor. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
CVSS vector ? CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Common Vulnerability Scoring System 3.0: the compact vector below is decoded into plain language.
AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UIRequiredUser interaction: Another user must perform an action for exploitation to succeed.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.INoneIntegrity impact: No direct loss is represented by this metric.ANoneAvailability impact: No direct loss is represented by this metric.
Post-exploitation / living off the land: The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.

UnauthenticatedCWE-200Public exploit reference

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

ENISA EUVD · EUVD-2017-5383Official EUVD mapping

0 linked advisory records.

Official EUVD record ↗

Canadian Centre for Cyber Security · English · AV17-185Apple security update

er 2017 Purpose The purpose of this advisory is to bring attention to an Apple system security update for, iOS, macOS High Sierra, tvOS, watchOS. Assessment Apple has released a support article regarding security vulnerabilities in their products and the relevant iOS, macOS High Sierra, tvOS, watchOS. iOS 11.2 macOS High Sierra 10.13.2, Security Update 2017-002 Sierra, and Security Update 2017-005 El Capitan tvOS 11.2 watchOS 4.2 This update addresses vulnerabilities on the system listed above. CVE Reference: CVE-2017-13847,CVE-2017-13879,CVE-2017-13861,CVE-2017-13862,CVE-2017-13876,CVE-2017-13833,CVE-2017-13855,CVE-2017-13867,CVE-2017-13865,CVE-2017-13868,CVE-2017-13869,CVE-2017-13874,CVE-2017-13860,CVE-2017-13080,CVE-2017-9798,CVE-2017-1000254,CVE-2017-13872,CVE-2017-13883,CVE-2017-13878,CVE-2017-13875,CVE-2017-13844,CVE-2017-13848,CVE-2017-13858,CVE-2017-13871,CVE-2017-3735,CVE-2017-13826,CVE-2017-13080 Suggested Action CCIRC recommends that system administrators test and deploy the vendor-released updates to affected applications accordingly. References: https://support.apple.com/en-us/HT208334 https://support.apple.com/en-us/HT208331 https://support.apple.com/en-us/HT208327 https://support.apple.com/en-us/HT208325

Official advisory ↗

CERT-FR · French · CERTFR-2017-AVI-451Multiples vulnérabilités dans les produits Apple

d?id=CVE-2017-13847 Référence CVE CVE-2017-13848 https://www.cve.org/CVERecord?id=CVE-2017-13848 Référence CVE CVE-2017-13855 https://www.cve.org/CVERecord?id=CVE-2017-13855 Référence CVE CVE-2017-13858 https://www.cve.org/CVERecord?id=CVE-2017-13858 Référence CVE CVE-2017-13860 https://www.cve.org/CVERecord?id=CVE-2017-13860 Référence CVE CVE-2017-13861 https://www.cve.org/CVERecord?id=CVE-2017-13861 Référence CVE CVE-2017-13862 https://www.cve.org/CVERecord?id=CVE-2017-13862 Référence CVE CVE-2017-13865 https://www.cve.org/CVERecord?id=CVE-2017-13865 Référence CVE CVE-2017-13867 https://www.cve.org/CVERecord?id=CVE-2017-13867 Référence CVE CVE-2017-13868 https://www.cve.org/CVERecord?id=CVE-2017-13868 Référence CVE CVE-2017-13869 https://www.cve.org/CVERecord?id=CVE-2017-13869 Référence CVE CVE-2017-13871 https://www.cve.org/CVERecord?id=CVE-2017-13871 Référence CVE CVE-2017-13872 https://www.cve.org/CVERecord?id=CVE-2017-13872 Référence CVE CVE-2017-13875 https://www.cve.org/CVERecord?id=CVE-2017-13875 Référence CVE CVE-2017-13876 https://www.cve.org/CVERecord?id=CVE-2017-13876 Référence CVE CVE-2017-13878 https://www.cve.org/CVERecord?id=CVE-2017-13878 Référence CVE CVE-2017-13883 https://www.cve.org/CVERecord?id=CVE-2017-13883 Référence CVE CVE-2017-3735 https://www.cve.org/CVERecord?id=C

Official advisory ↗

JVN iPedia · Japanese · JVNDB-2017-011452複数の Apple 製品のカーネルコンポーネントにおけるメモリ読み取りの制限を回避される脆弱性

複数の Apple 製品のカーネルコンポーネントには、メモリ読み取りの制限を回避される脆弱性が存在します。

Official advisory ↗

Patch and workaround

Operational remediation based on structured source evidence.

Status ? Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.: Fix not verified
Affected: n/a: n/a
Fixed: No fixed version is explicitly recorded in the structured CVE data.
Action: No verified patch reference is present in the current structured sources. Check the vendor advisory before making a change.
Workaround: No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.

Evidence and provenance

Published 25 Dec 2017 · Last source change 5 Aug 2024, 19:13 UTC · CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor

CVE recordCVE.org · 5.1

CVSS sourceNIST NVD

EPSS source

The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.

FIRST · tracked since 2026-09-01

European sourceENISA EUVD · EUVD-2017-5383

Product sourceCNA

Remediation sourceCVE/CNA references

CWE sourceNIST NVD

NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗

5 Aug 2024, 19:13 UTC
Vendor guidanceAuthoritative vendor guidance changed from no authoritative guidance recorded to vendor advisory.
Before
no authoritative guidance recorded
After
vendor advisory
af854a3a-2127-422b-91ae-364da2661108 ↗
5 Aug 2024, 19:13 UTC
Public exploit evidencePublic exploit evidence changed from No public exploit to Public exploit reference.
Before
No public exploit
After
Public exploit reference
af854a3a-2127-422b-91ae-364da2661108 ↗
5 Aug 2024, 19:13 UTC
SeveritySeverity changed from Unknown to Medium.
Before
Unknown
After
Medium
NIST NVD ↗
5 Aug 2024, 19:13 UTC
CVSS scoreCVSS score changed from not recorded to 5.5 (CVSS 3.0 · NIST NVD · CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N).
Before
not recorded
After
5.5 (CVSS 3.0 · NIST NVD · CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N)
NIST NVD ↗
1 Sept 2026, 02:42 UTC
ENISA EUVD mappingEUVD-2017-5383 was added to the official ENISA EUVD mapping for this CVE.
Before
not recorded
After
{"euvdId":"EUVD-2017-5383"}
ENISA EUVD ↗
5 Aug 2024, 19:13 UTC
Catalogue recordCVE added to the BlackTree catalogue.
CNA ↗

2017-12-25CVE published

ENISA EUVD · EUVD-2017-5383↗CVE authority or vendor reference↗Vendor advisory↗Vendor advisory↗Vendor advisory↗Public exploit reference↗Public exploit reference↗Official CVE record (CNA and ADP data)↗NVD record↗

Technical terms and abbreviations used in this report

CVE: Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS: Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS: Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE: Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA: CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP: Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD: National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT: A computer security incident response team that publishes warnings or coordinates incident response.
PoC: Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF: Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL: Living off the land: abuse of legitimate tools or system functions during an attack.

It allows attackers to bypass intended memory-read restrictions via a crafted app

National CERT insights
?
CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

ENISA European Vulnerability Database

EUVD-2017-5383

What, why and how

Exploit reality and attack path

Official authority intelligence

Patch and workaround

Evidence and provenance

What changed after publication

It allows attackers to bypass intended memory-read restrictions via a crafted app

National CERT insights ?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

EUVD-2017-5383

What, why and how

Exploit reality and attack path

Official authority intelligence

Patch and workaround

Evidence and provenance

National CERT insights
?
CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.