CVE-2021-1871
Severity not reported CISA KEVData quality: kev only.
This record comes from the CISA KEV catalog only; NVD details have not been synced yet.
Apple iOS, iPadOS, and macOS WebKit Remote Code Execution Vulnerability
Vendor / product: Apple — iOS, iPadOS, and macOS
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.
CVSS
—
Not reported by the source
Timeline (UTC)
Published: not reported
Modified: not reported
NVD status: not reported
Last synced 1 day ago
Verified against the source API 2026-10-27 06:50 UTC
Exploitation
Listed in CISA KEV
Added 2021-11-03 · due 2021-11-17
Known ransomware use: Unknown
Required action (CISA)
Apply updates per vendor instructions.
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- No references reported.
Data sources
CISA KEV — fetched 2026-10-27 06:50 UTC · record ↗