Weakness (CWE)
CWE-416: Use After Free
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
How to prevent it (2 mitigations)
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Architecture and Design
Choose a language that provides automatic memory management.
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Implementation
When freeing pointers, be sure to set them to NULL once they are freed. However, the utilization of multiple or complex data structures may lower the usefulness of this strategy.
Source: MITRE CWE-416
914 results · Clear filters · Feed
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Medium 5.5
Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: use-after-free information disclosure in createsaverwindow()
A use-after-free flaw was found in the X.Org X server and Xwayland in CreateSaverWindow(). A client can trigger a use-after-free read after changing window attributes and forcing the screen saver, leading to information disclosure.
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Medium 4.7
Use after free in Network in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who had compromised the ren…
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Medium 6.5
Use after free in Codecs in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to obtain potentially sensit…
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Medium 6.5
Use after free in WebGL in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to obtain potentially sensiti…
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Medium 4.9
libexpat before 2.8.2 lacks handler call depth tracking for calls to XML_GetBuffer, XML_Parse, XML_ParseBuffer, XML_Par…
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Medium 6.3
EIPStackGroup OpENer SendRRData cipmessagerouter.c CreateMessageRouterRequestStructure use after free
A security vulnerability has been detected in EIPStackGroup OpENer up to 2.3.0. Affected is the function CreateMessageRouterRequestStructure of the file cipmessagerouter.c of the component SendRRData Handler. The manipulation leads to use after free. Remote e…
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Medium 5.3
Assimp ASE File scene.cpp ~aiNode use after free
A weakness has been identified in Assimp up to 6.0.4. Affected by this vulnerability is the function aiNode::~aiNode of the file scene.cpp of the component ASE File Parser. Executing a manipulation can lead to use after free. The attack needs to be launched l…
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Medium 5.5
A heap use-after-free in the dasher_process function (/filters/dasher.c) of GPAC Project/MP4Box before 26.02.0 allows a…
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Medium 5.4CVE-2026-4390 Public exploit
TeamSpeak 3 Server Connection State Management process_resend_queue use after free
A weakness has been identified in TeamSpeak 3 Server up to 3.13.7. This affects the function process_resend_queue of the component Connection State Management. This manipulation causes use after free. The attack may be initiated remotely. Upgrading to version…
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Medium 6.5
libyang - Heap Use-After-Free Write in XML Metadata Parsing
libyang before 5.4.3 contains a heap use-after-free write vulnerability in lyd_parser_set_data_flags that incorrectly updates metadata list pointers when freeing non-head default metadata entries. Attackers can trigger this vulnerability by submitting crafted…
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Medium 6.5
filemanagement_storage_service has an use after free vulnerability
in OpenHarmony v6.0 and prior versions allow a local attacker arbitrary code execution.
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Medium 4.3
Open5GS NRF nghttp2-server.c discover_handler use after free
A security flaw has been discovered in Open5GS up to 2.7.7. Affected by this issue is the function discover_handler in the library /lib/sbi/nghttp2-server.c of the component NRF. The manipulation results in use after free. The attack can be launched remotely.…
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Medium —
rkyv: Panic safety bugs in `InlineVec::clear` and `SerVec::clear` enable arbitrary code execution
`InlineVec::clear()` and `SerVec::clear()` in `rkyv` were not panic-safe. Both functions iterate over their elements and call `drop_in_place` on each, updating `self.len` only *after* the loop. If an element's `Drop` implementation panics during the loop, `se…
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Medium 6.9
Improper input validation in the AMD Secure Processor (ASP) PCI driver could allow a local attacker to trigger a Use-Af…
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Medium 6.5
Use after free in Google Lens in Google Chrome prior to 148.0.7778.168 allowed a remote attacker who had compromised th…
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Medium 4.8CVE-2026-40701 Public exploit
NGINX ngx_http_ssl_module vulnerability
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_ssl_module module when the ssl_verify_client directive is set to "on" or "optional," and the ssl_ocsp directive is set to "on" or the leaf parameters are configured with a resolver. With th…
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Medium 6.4
Use-After-Free in MongoDB FLE Query Analysis When Processing Positional Projections on Encrypted Fields
A use-after-free vulnerability exists in MongoDB's Field-Level Encryption (FLE) query analysis component, affecting client-side uses of mongocryptd and crypt_shared. Triggering this vulnerability requires control over the structure of a client's FLE-related q…
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Medium 6.8
Use after free for some Linux kernel driver for the Intel(R) Ethernet 800 series before version 2.3.14 within Ring 0: K…
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Medium 5.3
A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.7.9 and iPadOS 18.7…
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Medium 6.5
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.5, macOS Tahoe 2…
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Medium 6.5
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.5, iOS 26.5 and …
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Medium 6.3
SoapServer session-persisted object use-after-free via SOAP header fault
In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, when SoapServer is configured with SOAP_PERSISTENCE_SESSION, the handler object is persisted across requests via session storage. However, in the case SOAP …
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Medium 4.7
Use after free in Views in Google Chrome prior to 148.0.7778.96 allowed a remote attacker who had compromised the rende…
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Medium 6.1CVE-2026-23631 Public exploit
redis-server Lua use-after-free may allow remote code execution
Redis is an in-memory data structure store. In all versions of redis-server with Lua scripting, an authenticated attacker can exploit the master-replica synchronization mechanism to trigger a use-after-free on replicas where replica-read-only is disabled or c…
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Medium 5.5
Use After Free in Wireshark
SDP protocol dissector crash in Wireshark 4.6.0 to 4.6.4 allows denial of service
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Medium 5.5
Foxit PDF Editor/Reader AcroForm Signature Use-After-Free Vulnerability
Flaws in page lifecycle management allow document structure changes to desynchronize internal component states, causing subsequent operations to access invalidated objects and crash the program.
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Medium 5.5
UAF in Foxit PDF Editor/Reader via XFA calculate event
A crafted XFA PDF can trigger a use-after-free condition during calculate event processing, causing the application to crash and resulting in an arbitrary code execution.
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Medium 5.0
Concurrent modification of RPZ data can lead to denial of servce
Having many concurrent transfers of the same RPZ can lead to inconsistent RPZ data, use after free and/or a crash of the recursor. Normally concurrent transfers of the same RPZ zone can only occur with a malfunctioning RPZ provider.
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Medium 5.1
Use-After-Free and Double-Free in IntoIter::drop when element drop panics
Double-Free / Use-After-Free (UAF) in the `IntoIter::drop` and `ThinVec::clear` functions in the thin_vec crate. A panic in `ptr::drop_in_place` skips setting the length to zero.
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Medium 4.3
Use after free in Codecs in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to potentially perform out …
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Medium 6.5
Windows UPnP Device Host Information Disclosure Vulnerability
Use after free in Windows Universal Plug and Play (UPnP) Device Host allows an unauthorized attacker to disclose information over an adjacent network.
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Medium 5.5
ImageMagick: Heap-use-after-free via XMP profile could result in a crash when printing values
ImageMagick is free and open-source software used for editing and manipulating digital images. Versions below 7.1.2-19 and 6.9.13-44 contain a heap use-after-free vulnerability that can cause a crash when reading and printing values from an invalid XMP profil…
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Medium 5.9
UAF vulnerability in the kernel module. Impact: Successful exploitation of this vulnerability will affect availability …
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Medium 5.7
UAF vulnerability in the kernel module. Impact: Successful exploitation of this vulnerability will affect availability …
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Medium 6.3
Heap Use-After-Free in PQC Hybrid KeyShare Error Cleanup in wolfSSL TLS 1.3
A heap use-after-free exists in wolfSSL's TLS 1.3 post-quantum cryptography (PQC) hybrid KeyShare processing. In the error handling path of TLSX_KeyShare_ProcessPqcHybridClient() in src/tls.c, the inner function TLSX_KeyShare_ProcessPqcClient_ex() frees a Kyb…
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Medium 5.1
LIBPNG has a yse-after-free in png_set_PLTE, png_set_tRNS and png_set_hIST leading to corrupted chunk data and potential heap information disclosure
LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From 1.0.9 to before 1.6.57, passing a pointer obtained from png_get_PLTE, png_get_tRNS, or png_get_hIST back into the …
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Medium 4.0
CUPS has a use-after-free in `cupsdDeleteTemporaryPrinters` via dangling subscription pointer
OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, a use-after-free vulnerability exists in the CUPS scheduler (cupsd) when temporary printers are automatically deleted. cupsdDele…
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Medium 6.5
Use After Free in Camera Driver
Memory Corruption when accessing freed memory due to concurrent fence deregistration and signal handling.
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Medium 5.8
Electron: Use-after-free in download save dialog callback
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to versions 38.8.6, 39.8.0, 40.7.0, and 41.0.0-beta.8, apps that allow downloads and programmatically destroy sessions may be vulnerable to a use-aft…
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Medium 6.3
Use after free in CSS in Google Chrome prior to 146.0.7680.178 allowed a remote attacker to execute arbitrary code insi…