Buffer overflow in Apple Ios
CVE-2020-9819
A memory consumption issue was addressed with improved memory handling. This issue is fixed in iOS 13.5 and iPadOS 13.5, iOS 12.4.7, watchOS 6.2.5, watchOS 5.3.7. Processing a maliciously crafted mail message may lead to heap corruption.
Vulnerability class: Buffer Overflow
EPSS: 0.022 (80.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L.
Affected products
- Apple Ios — versions unspecified
- Apple Ios-1 — versions unspecified
- Apple Ipados
- Apple Iphone_os
- Apple Watchos — versions unspecified
- Apple Watchos-1 — versions unspecified
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_MISC, Release Notes, Vendor Advisory)
- product-security@apple.com (x_refsource_MISC, Release Notes, Vendor Advisory)
- product-security@apple.com (x_refsource_MISC, Release Notes, Vendor Advisory)
- product-security@apple.com (x_refsource_MISC, Release Notes, Vendor Advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2020-9819?
- CVE-2020-9819 is a medium-severity vulnerability in Apple Ios, classified under Out-of-bounds Write. CVSS score: 4.3/10. Published 2020-06-09.
- How severe is CVE-2020-9819?
- Medium severity. CVSS v3 base score is 4.3 out of 10.
- Is CVE-2020-9819 known to be exploited?
- Yes. CVE-2020-9819 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 2 public proof-of-concept repositories are indexed.