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CVE-2026-124877

Use-after-free in the Layout: Positioned component

Use-after-free in the Layout: Positioned component. This vulnerability was fixed in Firefox 160, Firefox ESR 115.45, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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CVE-2026-124876

Use-after-free in the CSS Parsing and Computation component

Use-after-free in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox 160, Firefox ESR 115.45, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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CVE-2026-124872

Use-after-free in the Cycle Collector component

Use-after-free in the Cycle Collector component. This vulnerability was fixed in Firefox 160, Firefox ESR 115.45, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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CVE-2026-124869

Use-after-free in the DOM: Core & HTML component

Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 160, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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CVE-2026-124866

Use-after-free in the Layout component

Use-after-free in the Layout component. This vulnerability was fixed in Firefox 160, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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CVE-2026-124865

Use-after-free in the Audio/Video component

Use-after-free in the Audio/Video component. This vulnerability was fixed in Firefox 160, Firefox ESR 115.45, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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CVE-2026-124864

Sandbox escape due to use-after-free in the DOM: Service Workers component

Sandbox escape due to use-after-free in the DOM: Service Workers component. This vulnerability was fixed in Firefox 160, Firefox ESR 115.45, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.

CVSS 3.1 · 9.6 Critical EPSS < 1% KEV · Not listed
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CVE-2026-124863

Use-after-free in the DOM: HTML Parser component

Use-after-free in the DOM: HTML Parser component. This vulnerability was fixed in Firefox 160, Firefox ESR 115.45, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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CVE-2026-124862

Use-after-free in the DOM: Core & HTML component

Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 160, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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CVE-2026-124860

Use-after-free in the Audio/Video component

Use-after-free in the Audio/Video component. This vulnerability was fixed in Firefox 160, Firefox ESR 115.45, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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CVE-2026-124858

Use-after-free in the DOM: HTML Parser component

Use-after-free in the DOM: HTML Parser component. This vulnerability was fixed in Firefox 160, Firefox ESR 115.45, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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CVE-2026-124857

Use-after-free in the Graphics: Canvas2D component

Use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 160, Firefox ESR 115.45, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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CVE-2026-63816

f2fs: atomic: fix UAF issue on f2fs_inode_info.atomic_inode

In the Linux kernel, the following vulnerability has been resolved: f2fs: atomic: fix UAF issue on f2fs_inode_info.atomic_inode - ioctl(F2FS_IOC_GARBAGE_COLLECT_RANGE) - shrink - f2fs_gc - gc_data_segment - ra_data_block(cow_inode) - mapping = F2FS_I(inode)->atomic_inode->i_mapping : f2fs_is_cow_file(cow_inode) is true - f2fs_evict_inode(atomic_inode) - clear_inode_flag(fi->cow_inode, FI_COW_FILE) - F2FS_I(fi->cow_inode)->atomic_inode = NULL ... - truncate_inode_pages_final(atomic_inode) - f2fs_grab_cache_folio(mapping) : create folio in atomic_inode->mapping - clear_inode(atomic_inode) - BUG_ON(atomic_inode->i_data.nrpages) We need to add a reference on fi->atomic_inode before using its mapping field during garbage collection, otherwise, it will cause UAF issue.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
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CVE-2026-118024

Use-after-free in the Graphics: Text component

Use-after-free in the Graphics: Text component. This vulnerability was fixed in Firefox 159, Thunderbird 159, Firefox ESR 153.7, and Thunderbird 153.7.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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CVE-2026-118021

Sandbox escape due to use-after-free in the XPCOM component

Sandbox escape due to use-after-free in the XPCOM component. This vulnerability was fixed in Firefox 159, Thunderbird 159, Firefox ESR 153.7, and Thunderbird 153.7.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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CVE-2026-118007

Use-after-free in the JavaScript: GC component

Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 159, Thunderbird 159, Firefox ESR 153.7, and Thunderbird 153.7.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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CVE-2026-93424

FastNetMon: NetFlow/IPFIX template cache returns unlocked pointers, causing heap-use-after-free on multi-port deployments

FastNetMon is a high-performance DDoS detector and sensor. In version 1.2.9 and earlier, peer_find_template() in src/netflow_plugin/netflow_collector.cpp and src/netflow_plugin/netflow_v9_collector.cpp returns a pointer into global_netflow9_templates after releasing the cache mutex. On deployments with at least two entries in netflow_ports, concurrent template redefinition and data-flowset processing can let add_update_peer_template() reassign the template and free its records vector while another listener dereferences the escaped pointer. An unauthenticated sender that can reach both NetFlow/IPFIX listener ports can trigger a heap-use-after-free and reliably crash FastNetMon. No fixed release is available as of this review.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
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CVE-2026-58927

The vulnerability is a Use-After-Free (UAF) in the EVS AIDL HAL, arising from a data race on an unsynchronized `std::weak_ptr` within `EvsEnumerator::openCamera()`. Specifically, concurrent calls from a privileged UID (e.g., `AID_AUTOMOTIVE_EVS`) can cause a torn `weak_ptr` state, leading to a virtual call through a freed object's vtable at `cameraObj->getCameraInfo(&desc)`. This allows for potential arbitrary code execution within the `hal_evs_default` process.

CVSS 3.1 · 6.7 Medium EPSS < 1% KEV · Not listed
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CVE-2026-124943

Use-after-free in the Layout component

Use-after-free in the Layout component. This vulnerability was fixed in Firefox 160 and Thunderbird 160.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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CVE-2026-124908

Use-after-free in the CSS Parsing and Computation component

Use-after-free in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox 160 and Thunderbird 160.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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