CVE-2021-30983 Technical Vulnerability Analysis & Patch Advisory (CVSS 7.8)
Executive & SecOps Summary
SECOPS ASSESSMENTSystems running unpatched versions impacted by CVE-2021-30983
A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 15.2 and iPadOS 15.2. An application may be ...
Apply vendor security patches and restrict external network exposure.
Affected Products & Version Scope
Remediation & Live Workaround Commands
PATCH & WORKAROUNDRemediation Steps
- Upgrade to the latest patched release from the vendor.
- Apply virtual patching or network segmentation until maintenance windows allow full patching.
Block Kernel Privilege Escalation & Ransomware Payloads Before You Can Reboot
Protect unpatched Windows, Linux, and macOS workloads against in-memory exploitation and lateral movement with autonomous EDR.
Technical Root Cause & Exploitation Mechanics
Technical Overview
A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 15.2 and iPadOS 15.2. An application may be able to execute arbitrary code with kernel privileges.
- CVSS Score: 7.8 (HIGH)
- CWE IDs: CWE-120, CWE-120
Official Vendor Advisories & References
A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 15.2 and iPadOS 15.2. An application may be able to execute arbitrary code with kernel privileges.
Frequently Asked SecOps Questions (CVE-2021-30983)
FAQQ1. How critical is CVE-2021-30983 and is it actively exploited in the wild?
CVE-2021-30983 is rated CVSS 7.8 (HIGH) with a 30-day EPSS exploitation probability of 2.9%. It is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, requiring immediate emergency remediation.
Q2. Which vendors and products are affected by CVE-2021-30983?
Primary impacted vendors include security-advisory across enterprise-software. Scope summary: All unpatched versions listed in the official NVD CPE configurations
Q3. What temporary mitigations or workarounds exist for CVE-2021-30983 before patching?
[Mitigation] Apply vendor security patches and restrict external network exposure. Follow the CLI remediation commands and interactive SecOps checklist on this page to restrict exposure prior to your maintenance window.
Generate an Internal Engineering Notice or CISO Report for CVE-2021-30983
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