Buffer overflow in Apple Ios And Ipados
CVE-2021-30900
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 14.8.1 and iPadOS 14.8.1, iOS 15.1 and iPadOS 15.1. A malicious application may be able to execute arbitrary code with kernel privileges.
Vulnerability class: Buffer Overflow
EPSS: 0.052 (91.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Apple Ios And Ipados — versions unspecified
- Apple Ipados — versions 15.0
- Apple Iphone_os — versions 15.0
- Apple Macos
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Public proof-of-concept exploits
References
- product-security@apple.com (x_refsource_CONFIRM, Vendor Advisory)
- product-security@apple.com (x_refsource_MISC, Vendor Advisory)
- product-security@apple.com (x_refsource_MISC, Vendor Advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2021-30900?
- CVE-2021-30900 is a high-severity vulnerability in Apple Ios And Ipados, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2021-08-24.
- How severe is CVE-2021-30900?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2021-30900 known to be exploited?
- Yes. CVE-2021-30900 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2023-03-30), indicating it is being actively exploited. 2 public proof-of-concept repositories are indexed.