# CVE-2025-43343: Memory corruption in Safari > Attackers can cause a browser crash by processing malicious web content, affecting users of Apple Safari and related operating systems. - **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`) - **Exploited in the wild:** Not known - **Login needed:** Not needed - **Attackable:** Over the internet - **Victim action needed:** Not needed - **Fix available:** Yes - **Published:** 15 Sep 2025 - **Updated:** 2 Apr 2026 - **Also known as:** ALSA-2025:18070, CLSA-2025-1764234735, DEBIAN-CVE-2025-43343, GHSA-r357-mp92-7297, RHSA-2025:18070, RHSA-2025:19913, RHSA-2025:19914, RHSA-2025:19915, RHSA-2025:19916, RHSA-2025:19918, RHSA-2025:19919, RHSA-2025:19920, RHSA-2025:19946, RLSA-2025:18070, UBUNTU-CVE-2025-43343, USN-7895-1 ## What is CVE-2025-43343? CVE-2025-43343 is a critical memory corruption vulnerability in Apple Ipados, published on 15 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim. ### Official description The issue was addressed with improved memory handling. This issue is fixed in Safari 26, iOS 26 and iPadOS 26, macOS Tahoe 26, tvOS 26, visionOS 26, watchOS 26. Processing maliciously crafted web content may lead to an unexpected process crash. Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) ## Which versions are affected by CVE-2025-43343? It affects 9 products. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `webkit2gtk3` | AlmaLinux:8 | All versions | 2.50.1-1.el8_10 | | `webkit2gtk3-devel` | AlmaLinux:8 | All versions | 2.50.1-1.el8_10 | | `webkit2gtk3-jsc` | AlmaLinux:8 | All versions | 2.50.1-1.el8_10 | | `webkit2gtk3-jsc-devel` | AlmaLinux:8 | All versions | 2.50.1-1.el8_10 | | `webkit2gtk3` | Red Hat:enterprise_linux:8::appstream | All versions | 0:2.50.1-1.el8_10 | | `webkit2gtk3-debuginfo` | Red Hat:enterprise_linux:8::appstream | All versions | 0:2.50.1-1.el8_10 | | `webkit2gtk3-debugsource` | Red Hat:enterprise_linux:8::appstream | All versions | 0:2.50.1-1.el8_10 | | `webkit2gtk3-devel` | Red Hat:enterprise_linux:8::appstream | All versions | 0:2.50.1-1.el8_10 | | `webkit2gtk3-devel-debuginfo` | Red Hat:enterprise_linux:8::appstream | All versions | 0:2.50.1-1.el8_10 | | `webkit2gtk3-jsc` | Red Hat:enterprise_linux:8::appstream | All versions | 0:2.50.1-1.el8_10 | | `webkit2gtk3-jsc-debuginfo` | Red Hat:enterprise_linux:8::appstream | All versions | 0:2.50.1-1.el8_10 | | `webkit2gtk3-jsc-devel` | Red Hat:enterprise_linux:8::appstream | All versions | 0:2.50.1-1.el8_10 | | `webkit2gtk3-jsc-devel-debuginfo` | Red Hat:enterprise_linux:8::appstream | All versions | 0:2.50.1-1.el8_10 | | `webkit2gtk3` | Red Hat:rhel_aus:8.2::appstream | All versions | 0:2.50.1-1.el8_2 | | `webkit2gtk3-debuginfo` | Red Hat:rhel_aus:8.2::appstream | All versions | 0:2.50.1-1.el8_2 | | `webkit2gtk3-debugsource` | Red Hat:rhel_aus:8.2::appstream | All versions | 0:2.50.1-1.el8_2 | | `webkit2gtk3-devel` | Red Hat:rhel_aus:8.2::appstream | All versions | 0:2.50.1-1.el8_2 | | `webkit2gtk3-devel-debuginfo` | Red Hat:rhel_aus:8.2::appstream | All versions | 0:2.50.1-1.el8_2 | | `webkit2gtk3-jsc` | Red Hat:rhel_aus:8.2::appstream | All versions | 0:2.50.1-1.el8_2 | | `webkit2gtk3-jsc-debuginfo` | Red Hat:rhel_aus:8.2::appstream | All versions | 0:2.50.1-1.el8_2 | | `webkit2gtk3-jsc-devel` | Red Hat:rhel_aus:8.2::appstream | All versions | 0:2.50.1-1.el8_2 | | `webkit2gtk3-jsc-devel-debuginfo` | Red Hat:rhel_aus:8.2::appstream | All versions | 0:2.50.1-1.el8_2 | | `webkit2gtk3` | Red Hat:rhel_aus:8.4::appstream | All versions | 0:2.50.1-1.el8_4 | | `webkit2gtk3-debuginfo` | Red Hat:rhel_aus:8.4::appstream | All versions | 0:2.50.1-1.el8_4 | | `webkit2gtk3-debugsource` | Red Hat:rhel_aus:8.4::appstream | All versions | 0:2.50.1-1.el8_4 | | `webkit2gtk3-devel` | Red Hat:rhel_aus:8.4::appstream | All versions | 0:2.50.1-1.el8_4 | | `webkit2gtk3-devel-debuginfo` | Red Hat:rhel_aus:8.4::appstream | All versions | 0:2.50.1-1.el8_4 | | `webkit2gtk3-jsc` | Red Hat:rhel_aus:8.4::appstream | All versions | 0:2.50.1-1.el8_4 | | `webkit2gtk3-jsc-debuginfo` | Red Hat:rhel_aus:8.4::appstream | All versions | 0:2.50.1-1.el8_4 | | `webkit2gtk3-jsc-devel` | Red Hat:rhel_aus:8.4::appstream | All versions | 0:2.50.1-1.el8_4 | | `webkit2gtk3-jsc-devel-debuginfo` | Red Hat:rhel_aus:8.4::appstream | All versions | 0:2.50.1-1.el8_4 | | `webkit2gtk3` | Red Hat:rhel_aus:8.6::appstream | All versions | 0:2.50.1-1.el8_6 | | `webkit2gtk3-debuginfo` | Red Hat:rhel_aus:8.6::appstream | All versions | 0:2.50.1-1.el8_6 | | `webkit2gtk3-debugsource` | Red Hat:rhel_aus:8.6::appstream | All versions | 0:2.50.1-1.el8_6 | | `webkit2gtk3-devel` | Red Hat:rhel_aus:8.6::appstream | All versions | 0:2.50.1-1.el8_6 | | `webkit2gtk3-devel-debuginfo` | Red Hat:rhel_aus:8.6::appstream | All versions | 0:2.50.1-1.el8_6 | | `webkit2gtk3-jsc` | Red Hat:rhel_aus:8.6::appstream | All versions | 0:2.50.1-1.el8_6 | | `webkit2gtk3-jsc-debuginfo` | Red Hat:rhel_aus:8.6::appstream | All versions | 0:2.50.1-1.el8_6 | | `webkit2gtk3-jsc-devel` | Red Hat:rhel_aus:8.6::appstream | All versions | 0:2.50.1-1.el8_6 | | `webkit2gtk3-jsc-devel-debuginfo` | Red Hat:rhel_aus:8.6::appstream | All versions | 0:2.50.1-1.el8_6 | Products: Apple Ipados, Apple Iphone Os, Apple Macos, Apple Safari, Apple Tvos, Apple Visionos, Apple Watchos, Webkitgtk Webkitgtk, Wpewebkit Wpe Webkit. ## How do I fix CVE-2025-43343? Upgrade to a fixed version. ## Is CVE-2025-43343 being exploited? There is no known exploitation of CVE-2025-43343 in the wild and no public exploit code. ## Other vulnerabilities in Apple Ipados - [CVE-2025-43300](https://insights.sbomify.com/CVE-2025-43300/): Apple iOS, iPadOS, and macOS Out-of-Bounds Write (critical 10.0, exploited in the wild) - [CVE-2025-24201](https://insights.sbomify.com/CVE-2025-24201/): Apple Multiple Products WebKit Out-of-Bounds Write (critical 10.0, exploited in the wild) - [CVE-2025-24085](https://insights.sbomify.com/CVE-2025-24085/): Apple Multiple Products Use-After-Free (critical 10.0, exploited in the wild) - [CVE-2025-31200](https://insights.sbomify.com/CVE-2025-31200/): Apple Multiple Products Memory Corruption (critical 9.8, exploited in the wild) - [CVE-2025-31201](https://insights.sbomify.com/CVE-2025-31201/): Apple Multiple Products Arbitrary Read and Write (critical 9.8, exploited in the wild) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2025-43343 and fix it if it is affected. What it is: CVE-2025-43343 is a critical memory corruption vulnerability in Apple Ipados, published on 15 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim. Exploitation: There is no known exploitation of CVE-2025-43343 in the wild and no public exploit code. Affected product: Apple Ipados. No package-level version data is available, so check the vendor advisory linked from the reference page. Task: 1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies. 2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it. 3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead. 4. Run the tests and summarise what changed and why. 5. If nothing in the project is affected, say so and change nothing. Reference: https://insights.sbomify.com/CVE-2025-43343/ (Markdown: https://insights.sbomify.com/CVE-2025-43343/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2025-43343 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-43343 - OSV: https://osv.dev/vulnerability/CVE-2025-43343 --- From sbomify Insights: https://insights.sbomify.com/CVE-2025-43343/ Summaries are generated and may contain mistakes; the official description above is the record.