CVE-2017-2547

Home/CVE/An issue was discovered in certain Apple products. iOS before 10.3.2 is affected. Safari before 10.1.1 is affected. The

CVE

An issue was discovered in certain Apple products. iOS before 10.3.2 is affected. Safari before 10.1.1 is affected. The

An issue was discovered in certain Apple products. iOS before 10.3.2 is affected. Safari before 10.1.1 is affected. The issue involves the "WebKit" component.

It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.

HIGH · CVSS 8.8 EPSS 0.56117

Act now

EPSS ≥ 0.50 - high probability of exploitation in the next 30 days
EPSS percentile: top 2% of all CVEs by exploitation likelihood
Public exploit or PoC is available
CVSS base score ≥ 7.0

Sigma rules0 YARA rules0

Look this up elsewhere - one-click external pivots

NVD CVE.org CISA Vulners Exploit-DB GitHub PoC VulnCheck KEV GreyNoise

▸ How to read a CVE - triage first, then detect and patch

This page is every public fact about CVE-2017-2547, cross-linked. Its job is to answer one question fast - does this need my attention now? - and then hand you the two things you do about it. Here is how an analyst reads it.

Triage: should I act now? Four signals, and they are not interchangeable:

CVSSseverity - how bad it is IF exploited, 0-10. A high CVSS alone is not urgency; a flaw can be a perfect 10 and never actually be attacked. EPSSprobability - a model’s estimate of the chance it is exploited in the next 30 days, 0-1. This is the “will it actually happen” signal. CISA KEVconfirmed - it is being exploited in the wild right now. The strongest signal on the page; KEV beats any score. Weaponisedavailability - public exploits / PoCs, and especially Metasploit modules rated Excellent / Great. Reliable, packaged exploit code means low-skill attackers can use it today.

How they combine: KEV, or a dependable Metasploit module, means patch now regardless of CVSS. High CVSS + low EPSS + no exploit is real but not an emergency - schedule it. Low CVSS but KEV-listed still gets patched now. The verdict above already weighed these for you; this is how it got there.

Then what - two workflows:

Detectwhen you cannot patch today, follow this CVE to the ATT&CK techniques it enables, then Build a SIEM detection (the green button) - author a rule, test it in Atomic, deploy it. That buys visibility while the patch waits. PatchAffected products / packages tell you if you are exposed; Fixed versions by distribution and Vendor advisories give the exact version that closes it.

Reading order for the panels below: verdict + badges, then Public exploits / Metasploit (is it weaponised), then ATT&CK techniques + Sigma / IDS rules (can I detect it), then Affected products / packages + Fixed versions (am I exposed, what patches it), then Threat actors / IOCs (who uses it), then Scoring & timeline / references (the evidence).

View attack path from CVE-2017-2547

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ATT&CK techniques

Techniques this CVE enables - linked via CWECAPECATT&CK. High◆ = named directly in ATT&CK or Nuclei templates.

T1203 · Exploitation for Client Execution T1566 · Phishing

▤ Build a SIEM detection for these techniques

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CAPEC attack patterns

Attack patterns this CVE enables - the bridge from weakness to ATT&CK technique.

CAPEC-CAPEC-10 · Buffer Overflow via Environment Variables CAPEC-CAPEC-100 · Overflow Buffers CAPEC-CAPEC-123 · Buffer Manipulation CAPEC-CAPEC-14 · Client-side Injection-induced Buffer Overflow CAPEC-CAPEC-24 · Filter Failure through Buffer Overflow CAPEC-CAPEC-42 · MIME Conversion CAPEC-CAPEC-44 · Overflow Binary Resource File CAPEC-CAPEC-45 · Buffer Overflow via Symbolic Links CAPEC-CAPEC-46 · Overflow Variables and Tags CAPEC-CAPEC-47 · Buffer Overflow via Parameter Expansion CAPEC-CAPEC-8 · Buffer Overflow in an API Call CAPEC-CAPEC-9 · Buffer Overflow in Local Command-Line Utilities

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Weakness Classification

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

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Affected Products & Versions

apple safari<= 10.1

apple iphone os<= 10.3.1

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Affected Packages

Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.

Ubuntu:16.04:LTS webkit2gtk fixed in 2.16.1-0ubuntu0.16.04.2

Ubuntu:20.04:LTS qtwebkit-opensource-src

Ubuntu:22.04:LTS qtwebkit-opensource-src

Ubuntu:24.04:LTS qtwebkit-opensource-src

Ubuntu:Pro:16.04:LTS qtwebkit-opensource-src

Ubuntu:Pro:16.04:LTS qtwebkit-source

Ubuntu:Pro:16.04:LTS webkitgtk

Ubuntu:Pro:18.04:LTS qtwebkit-opensource-src

Ubuntu:Pro:18.04:LTS qtwebkit-source

Ubuntu:Pro:18.04:LTS webkitgtk

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Public Exploits & PoCs

These PoC and exploit links come from public sources and are not verified to be safe or functional. Review the code before running anything, and treat unverified entries as untrusted.
dosWebKit JSC - JIT Optimization Check Failed in IntegerCheckCombiningPhase::handleBlockverified
pocARPSyndicate/cvemon (trickest)
pocSeaJae/exploitPlayground (trickest)
pocSkyBulk/RealWorldPwn (trickest)
pocaddicjanov/js-vuln-db (trickest)
pocexternalist/exploit_playground (trickest)
poclikekabin/exploit_playground_lists_androidCVE (trickest)
poclikescam/exploit_playground_lists_androidCVE (trickest)
poclnick2023/nicenice (trickest)
pocotravidaahora2t/js-vuln-db (trickest)
pocqazbnm456/awesome-cve-poc (trickest)
poctheori-io/zer0con2018_singi (trickest)
poctunz/js-vuln-db (trickest)
pocwwkenwong/Debugging-CVE (trickest)
pocxbl3/awesome-cve-poc_qazbnm456 (trickest)
pocwww.exploit-db.com · 42190www.exploit-db.com