[KEV] Use-After-Free in Apple Multiple Products (CVE-2025-43529)
Summary
Vulnerability in Apple Multiple Products (CVE-2025-43529). Successful exploitation can lead to full system takeover. Listed in CISA KEV — actively exploited.
Original description
The description as published by the source.
Apple iOS, iPadOS, macOS, and other Apple products contain a use-after-free vulnerability in WebKit. Processing maliciously crafted web content may lead to memory corruption. 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.
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2025-43529 has been found in Apple Multiple Products.
Successful exploitation can lead to full system takeover. CVSS score: 8.8/10.
Note: CISA has officially confirmed this is actively exploited in the wild. Treat it with elevated urgency.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Apple Multiple Products CVE-2025-43529" on the vendor's site.
CVE-2025-43529 (Apple Multiple Products) — CWE-416 / CVSS v3 8.8
Attack vector: remote (network-reachable) / unauthenticated
Listed in CISA KEV — actively exploited, treat as top priority.
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
Use-after-free (CWE-416) exists in Apple Multiple Products.
Check the vendor advisory for the affected versions of Apple Multiple Products.
Severity: High (CVSS 8.8/10). Successful exploitation can lead to full system takeover. Listed in CISA KEV — actively exploited in the wild, treat as top priority.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで Apple Multiple Products を使っているサービスとバージョンを洗い出す。
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2Consider incident declaration escalate
Notify SOC / on-callCISA KEV登録済 = 実環境で悪用が観測されている。侵入の兆候があればインシデント対応宣言、無くてもパッチ適用までWAF強化を最優先で。
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3Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2025-43529 webkit2gtk Fixed in: 2.50.4-1~deb11u1
- Ubuntu UBUNTU-CVE-2025-43529 qtwebkit-opensource-src
References
- advisory NVD
- patch product-security@apple.com
- patch product-security@apple.com
- patch product-security@apple.com
- patch product-security@apple.com
- patch product-security@apple.com
- patch product-security@apple.com
- patch product-security@apple.com
- web cisa.gov