high Known exploitedREV. 01
CVE-2023-32409Apple WebKit — out of the web content isolation
A remote attacker breaks out of the isolation Apple puts around web content, which Apple addressed with better bounds checks. Active exploitation was reported, and the fix spans every platform that ships the engine.
Read the risk
THE VITAL STATS- CVSS score
- 8.6/ 10 CVSS v3.1
- EPSS probability
- 17% Likelihood of exploitation
- Attack complexity
- Low Conditions needed to exploit
- Known exploited
- Yes — CISA KEV
- CVE published
- 2023-06-23
- Added to KEV
- 2023-05-22
- Exploit published
- Not recorded
- Confidence
- medium
- Kill chain
- execution
- MITRE ATT&CK
- T1203
- Severity
- high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
Attacker needsThe user must open attacker-controlled web content.
Fixed iniOS 16.5, iOS 15.7.8, macOS Ventura 13.4, Safari 16.5, tvOS 16.5, watchOS 9.5
Behind the card
5 REFERENCES- 01CVE recordNVD recordnvd.nist.gov
- 02CISACISA Known Exploited Vulnerabilities catalogcisa.gov
- 03Vendor advisorysupport.apple.comsupport.apple.com
- 04Vendor advisorysupport.apple.comsupport.apple.com
- 05Vendor advisorysupport.apple.comsupport.apple.com
Field-level provenanceTRACE THE SOURCES +
Which source supports each field, when it was retrieved, and who extracted it.
| Fields | Source | Retrieved | Extractor | Confidence |
|---|---|---|---|---|
| cvss, exploitation.attack_complexity, exploitation.exploit_available, references, published_at | nvd.nist.gov | 2026-09-24 | scrty-crds-pipeline/0.1 | high |
| exploitation.known_exploited, exploitation.kev_added | cisa.gov | 2026-09-24 | scrty-crds-pipeline/0.1 | high |
| epss | api.first.org | 2026-09-24 | scrty-crds-pipeline/0.1 | high |
| title, summary, severity, remediation, mitre_attack, kill_chain, recommended_action, confidence, tags, exploitation.prerequisites | nvd.nist.gov | 2026-09-24 | claude-code | high |
Printing history
THE RECORD- r1Initial base card
First printing. This card has not been reprinted since publication.