CVE-2021-30762
A use after free issue was addressed with improved memory management. This issue is fixed in iOS 12.5.4. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..
CVSS
- Version: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Base score: 8.8
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 11%
- Percentile among all scored CVEs: 96
- Score date: 10/8/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
CISA KEV — actively exploited
- Added to catalog: 11/3/2021
- Remediation due date: 11/17/2021
- Known ransomware use: Unknown
🎯 ATT&CK techniques
How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.
- Exploitation
T1203Exploitation for Client Executionexecution95 % - Primary impact
T1059Command and Scripting Interpreterexecution90 % - Secondary impact
T1005Data from Local Systemcollection70 %
Contenido web malicioso requiere interacción (UI:R). CWE-416 (use-after-free) en navegador permite ejecución arbitraria de código. Explotación activa confirmada en ransomware.
Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.
🛡️ ATT&CK mitigations that cover these techniques
Affected technologies (1)
CWEs
- CWE-416
- CWE-416
References
Raw JSON (NVD)
Show
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