What is CVE-2021-1796?

CVE-2021-1796 is a critical-severity vulnerability in Apple Ios And Ipados, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2021-04-02.

How severe is CVE-2021-1796?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Apple Ios And Ipados

CVE-2021-1796

An out-of-bounds write was addressed with improved input validation. This issue is fixed in iOS 14.4 and iPadOS 14.4. A remote attacker may be able to cause arbitrary code execution.

Vulnerability class: Buffer Overflow

EPSS: 0.020 (77.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Apple Ios And Ipados — versions unspecified
Apple Ipad_os
Apple Iphone_os

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

product-security@apple.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-1796?: CVE-2021-1796 is a critical-severity vulnerability in Apple Ios And Ipados, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2021-04-02.
How severe is CVE-2021-1796?: Critical severity. CVSS v3 base score is 9.8 out of 10.