Answer in brief
CVE-2021-30666 records a High severity buffer overflow vulnerability in Apple iOS WebKit Buffer Overflow Vulnerability. The source record marks it as known exploited. No package mapping is present, so exposure must be confirmed against the affected product and deployment inventory.
Answer in brief
CVE-2021-30666 records a High severity buffer overflow vulnerability in Apple iOS WebKit Buffer Overflow Vulnerability. The source record marks it as known exploited. No package mapping is present, so exposure must be confirmed against the affected product and deployment inventory.
Review the upstream advisory, identify the affected product in your inventory, and apply the vendor update when one is available.
Buffer Overflow describes the vulnerability class recorded for this advisory. CISA KEV marks CVE-2021-30666 as known exploited, so exposure review should be prioritized. This is a product-level record in the current feed, not a package-level dependency mapping.
Affected software not mapped. Review the upstream record for vendor-specific product and version guidance.
No references were reported by the source.
Apple iOS WebKit contains a buffer-overflow 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.
Reported by CISA KEV (kev).
CVE-2021-30666 records a High severity buffer overflow vulnerability in Apple iOS WebKit Buffer Overflow Vulnerability. The source record marks it as known exploited. No package mapping is present, so exposure must be confirmed against the affected product and deployment inventory.
The source record marks it as known exploited.
Confirm whether the product or interface named by this advisory exists in your inventory.
HOL Guard can help your team monitor supply-chain activity while the upstream record is clarified.
Explore HOL GuardReview the upstream advisory, identify the affected product in your inventory, and apply the vendor update when one is available.
Buffer Overflow describes the vulnerability class recorded for this advisory. CISA KEV marks CVE-2021-30666 as known exploited, so exposure review should be prioritized. This is a product-level record in the current feed, not a package-level dependency mapping.
Affected software not mapped. Review the upstream record for vendor-specific product and version guidance.
No references were reported by the source.
Apple iOS WebKit contains a buffer-overflow 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.
Reported by CISA KEV (kev).
CVE-2021-30666 records a High severity buffer overflow vulnerability in Apple iOS WebKit Buffer Overflow Vulnerability. The source record marks it as known exploited. No package mapping is present, so exposure must be confirmed against the affected product and deployment inventory.
The source record marks it as known exploited.
Confirm whether the product or interface named by this advisory exists in your inventory.
HOL Guard can help your team monitor supply-chain activity while the upstream record is clarified.
Explore HOL Guard