CVE-2021-1870 · netVigilance record NV21-0187

Apple iOS, iPadOS, and macOS WebKit Remote Code Execution

past due

What to do

Apply updates per vendor instructions.

CISA deadline 2021-11-17 · passed 4 years 9 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA

What happened

Apple iOS, iPadOS, and macOS WebKit contain an unspecified logic vulnerability that allows a remote attacker to execute code. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

Who is affected

Apple iOS, iPadOS, and macOS. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.

Weakness class: CWE-1173.

Timeline

2021-11-03
Added to CISA KEVExploitation in the wild confirmed by CISA
2021-11-17
CISA remediation deadlinepassed 4 years 9 months ago

Sources

NVD entry for CVE-2021-1870 nvd.nist.gov/vuln/detail/CVE-2021-1870
CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2021-1870