CVE-2026-20700 · netVigilance record NV26-0033
Apple Multiple Buffer Overflow
past due
What to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA deadline 2026-03-05 · passed 6 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA
What happened
Apple iOS, macOS, tvOS, watchOS, and visionOS contain an improper restriction of operations within the bounds of a memory buffer vulnerability that could allow an attacker with memory write the capability to execute arbitrary code.
Who is affected
Apple Multiple Products. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.
Weakness class: CWE-119.
Timeline
- Added to CISA KEVExploitation in the wild confirmed by CISA
- CISA remediation deadlinepassed 6 months ago
Sources
- NVD entry for CVE-2026-20700 nvd.nist.gov/vuln/detail/CVE-2026-20700
- CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
- support.apple.com support.apple.com/en-us/126346
- support.apple.com support.apple.com/en-us/126348
- support.apple.com support.apple.com/en-us/126351
- support.apple.com support.apple.com/en-us/126352
- support.apple.com support.apple.com/en-us/126353
- nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2026-20700