A race condition was addressed with improved state handling. This issue is fixed in macOS Monterey 12.1, iOS 15.2 and iPadOS 15.2. A malicious application may be able to execute arbitrary code with kernel privileges.
CVE-2021-30996
HIGHNVD 7.07.0—
EchelonGraph scoreMEDIUM confidence
This high-severity CVE scores 7.0 under NVD CVSS v3. EPSS exploit probability: 0.8%, top 47% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: epss, nvd
7.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.0Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.0
- EG Score
- 7.0(medium)
- EG Risk
- 36(Track)EG Risk 36/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity70% × 45%Exploitation1% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 1%
- EPSS %ILE
- 55%
- KEV
- Not listed
Published
August 24, 2021
Last Modified
November 21, 2024
References (4)
- product-security@applehttps://support.apple.com/en-us/HT212976
- product-security@applehttps://support.apple.com/en-us/HT212978
- af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/en-us/HT212976
- af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/en-us/HT212978
Related CVEs
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Frequently asked(5)
What is CVE-2021-30996?
CVE-2021-30996 is a high vulnerability published on August 24, 2021. A race condition was addressed with improved state handling. This issue is fixed in macOS Monterey 12.1, iOS 15.2 and iPadOS 15.2. A malicious application may be able to execute arbitrary code with kernel privileges.
When was CVE-2021-30996 disclosed?
CVE-2021-30996 was first published in the National Vulnerability Database on August 24, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-30996 actively exploited?
CVE-2021-30996 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 44.5% of all scored CVEs.
What is the CVSS score of CVE-2021-30996?
CVE-2021-30996 has a CVSS v3 base score of 7.0 (NVD).
How do I remediate CVE-2021-30996?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-30996, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2021-30996
Is Your Infrastructure Affected by CVE-2021-30996?
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