Apple iOS WebKit Memory Corruption Vulnerability (CVE-2021-30761)
Severity: high · Patch status: patched · Since 2021-11-03 · CVE-2021-30761
Apple iOS WebKit contains a memory corruption vulnerability that leads to code execution when processing maliciously crafted web content. 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. CISA added CVE-2021-30761 to its Known Exploited Vulnerabilities catalog on Nov 3, 2021, which means attackers are exploiting it in the wild.
What to do
- Apply updates per vendor instructions.
- US federal agencies must remediate by Nov 17, 2021 (BOD 22-01); treat that as the outer limit.
Sources
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