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Use After Free

memory HIGH

Use-after-free vulnerabilities occur when a program continues to access memory through a pointer after that memory has been deallocated.

How It Works

Use-after-free vulnerabilities occur when a program continues to access memory through a pointer after that memory has been deallocated. When memory is freed, it returns to the allocator's pool and may be reallocated for an entirely different purpose. The original pointer becomes "dangling"—it still points to that memory location, but the contents are now undefined or controlled by different code.

Attackers exploit this by orchestrating a three-step process: first, trigger the memory deallocation; second, cause the allocator to reassign that same memory region with attacker-controlled data (often through carefully timed allocations); third, trigger the program to dereference the dangling pointer. Because the memory now contains attacker data instead of the expected object, this can corrupt function pointers, vtables, or other critical structures.

The vulnerability is particularly dangerous in object-oriented code where freed objects contain function pointers or virtual method tables. When the program calls a method on the freed object, it may jump to attacker-controlled addresses. Browser engines are frequent targets because DOM manipulation allows attackers to control object allocation and deallocation timing through JavaScript, while kernel UAFs enable privilege escalation by manipulating file descriptors or process structures.

Impact

  • Arbitrary code execution — attacker overwrites function pointers or vtables to redirect program flow to malicious code
  • Privilege escalation — in kernel UAFs, gain root/system privileges by corrupting process credentials or security tokens
  • Information disclosure — read sensitive data from reallocated memory that wasn't properly cleared
  • Sandbox escape — break out of browser or application sandboxes by corrupting security-critical objects
  • Denial of service — crash the application through memory corruption, though attackers typically aim for exploitation rather than simple crashes

Real-World Examples

CVE-2021-30551 affected Chrome's V8 JavaScript engine, where improper handling of JavaScript typed arrays created a use-after-free in object property management. Attackers could trigger object deletion while retaining references, then reallocate the memory with controlled data to achieve code execution within the renderer process.

Windows kernel vulnerabilities like CVE-2020-17087 involved use-after-free conditions in the Windows keyboard layout handling code. Attackers exploited race conditions in keyboard layout switching to free kernel objects while retaining references, then reallocated the memory with controlled structures to elevate privileges from user to SYSTEM level.

The WhatsApp vulnerability CVE-2019-11932 demonstrated UAF exploitation in media parsing code, where specially crafted GIF files triggered premature memory deallocation. Subsequent access to the freed buffers allowed remote code execution without user interaction beyond receiving the malicious file.

Mitigation

  • Memory-safe languages — use Rust, Go, Swift, or other languages with automatic memory management
  • Smart pointers — employ RAII patterns and reference counting (unique_ptr, shared_ptr in C++)
  • AddressSanitizer (ASAN) — detect UAF during testing through instrumented builds
  • Immediate pointer nullification — set pointers to NULL after free() to cause immediate crashes rather than exploitable conditions
  • Garbage collection — languages with GC prevent manual memory management errors
  • Control Flow Integrity (CFI) — limits exploit impact by validating function pointer targets
  • Heap hardening — allocator metadata protection and delayed reuse policies increase exploitation difficulty

Recent CVEs (6141)

EPSS 2% CVSS 9.8
CRITICAL PATCH Act Now

An issue was discovered in Foxit Reader and PhantomPDF before 10.1. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

Use After Free Memory Corruption RCE +2
NVD
EPSS 2% CVSS 9.8
CRITICAL PATCH Act Now

An issue was discovered in Foxit Reader and PhantomPDF before 10.1. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

Use After Free Memory Corruption Information Disclosure +2
NVD
EPSS 2% CVSS 8.8
HIGH This Week

When recursing through graphical layers while scrolling, an iterator may have become invalid, resulting in a potential use-after-free. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Use After Free Mozilla Memory Corruption +6
NVD
EPSS 1% CVSS 8.8
HIGH This Week

When processing surfaces, the lifetime may outlive a persistent buffer leading to memory corruption and a potentially exploitable crash. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Buffer Overflow Use After Free Mozilla +2
NVD
EPSS 2% CVSS 8.8
HIGH This Week

Mozilla developers reported memory safety bugs present in Firefox 80 and Firefox ESR 78.2. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Mozilla Buffer Overflow Memory Corruption +7
NVD
EPSS 1% CVSS 8.8
HIGH This Week

When aborting an operation, such as a fetch, an abort signal may be deleted while alerting the objects to be notified. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Use After Free Mozilla Memory Corruption +3
NVD
EPSS 0% CVSS 3.2
LOW PATCH Monitor

QEMU 5.0.0 has a use-after-free in hw/usb/hcd-xhci.c because the usb_packet_map return value is not checked. Rated low severity (CVSS 3.2), this vulnerability is low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

Use After Free Memory Corruption Information Disclosure +2
NVD
EPSS 2% CVSS 8.8
HIGH PATCH This Week

Use after free in offscreen canvas in Google Chrome prior to 85.0.4183.102 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Google Use After Free Denial Of Service +6
NVD
EPSS 2% CVSS 9.6
CRITICAL Act Now

Use after free in video in Google Chrome on Android prior to 85.0.4183.102 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted. Rated critical severity (CVSS 9.6), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Google Use After Free Denial Of Service +6
NVD
EPSS 2% CVSS 8.8
HIGH This Week

Use after free in presentation API in Google Chrome prior to 85.0.4183.83 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Google Use After Free Denial Of Service +6
NVD
EPSS 1% CVSS 8.6
HIGH This Week

Use after free in extensions in Google Chrome prior to 84.0.4147.125 allowed a remote attacker to potentially perform a sandbox escape via a crafted Chrome Extension. Rated high severity (CVSS 8.6), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Google Use After Free Denial Of Service +4
NVD
EPSS 2% CVSS 8.8
HIGH This Week

Use after free in offline mode in Google Chrome on iOS prior to 84.0.4147.125 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Denial Of Service Memory Corruption Apple +5
NVD
EPSS 2% CVSS 8.8
HIGH This Week

Use after free in Blink in Google Chrome prior to 84.0.4147.125 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Google Use After Free Denial Of Service +4
NVD
EPSS 29% CVSS 8.8
HIGH This Week

Use after free in WebXR in Google Chrome prior to 84.0.4147.125 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Google Use After Free Denial Of Service +4
NVD
EPSS 29% CVSS 8.8
HIGH This Week

Use after free in IndexedDB in Google Chrome prior to 84.0.4147.125 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Google Use After Free Denial Of Service +4
NVD
EPSS 29% CVSS 8.8
HIGH This Week

Use after free in media in Google Chrome prior to 84.0.4147.125 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Google Use After Free Denial Of Service +4
NVD
EPSS 1% CVSS 8.8
HIGH This Week

Use after free in audio in Google Chrome prior to 84.0.4147.125 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Google Use After Free Denial Of Service +4
NVD
EPSS 1% CVSS 8.8
HIGH This Week

Use after free in media in Google Chrome prior to 84.0.4147.125 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Google Use After Free Denial Of Service +4
NVD
EPSS 1% CVSS 8.8
HIGH This Week

Use after free in task scheduling in Google Chrome prior to 84.0.4147.125 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Google Use After Free Denial Of Service +4
NVD
EPSS 2% CVSS 8.8
HIGH This Week

Use after free in ANGLE in Google Chrome prior to 84.0.4147.125 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Google Use After Free Denial Of Service +4
NVD
EPSS 23% CVSS 8.8
HIGH This Week

Use after free in WebUSB in Google Chrome prior to 84.0.4147.105 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Google Use After Free Denial Of Service +4
NVD
EPSS 1% CVSS 8.8
HIGH This Week

Use after free in CSS in Google Chrome prior to 84.0.4147.105 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Google Use After Free Denial Of Service +4
NVD
EPSS 1% CVSS 8.8
HIGH This Week

Use after free in SCTP in Google Chrome prior to 84.0.4147.105 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Google Use After Free Denial Of Service +4
NVD
EPSS 0% CVSS 6.5
MEDIUM This Month

Taurus-AN00B versions earlier than 10.1.0.156(C00E155R7P2) have a use-after-free (UAF) vulnerability. Rated medium severity (CVSS 6.5), this vulnerability is low attack complexity. No vendor patch available.

Use After Free Memory Corruption Information Disclosure +1
NVD
EPSS 0% CVSS 7.8
HIGH This Week

In SurfaceFlinger, there is a possible use-after-free due to improper locking. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.

Google Use After Free Privilege Escalation +2
NVD
EPSS 0% CVSS 6.7
MEDIUM This Month

In iorap, there is a possible memory corruption due to a use after free. Rated medium severity (CVSS 6.7), this vulnerability is low attack complexity. No vendor patch available.

Denial Of Service Buffer Overflow Privilege Escalation +5
NVD
EPSS 1% CVSS 8.8
HIGH This Week

In the Media extractor, there is a possible use after free due to improper locking. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Denial Of Service Memory Corruption RCE +3
NVD
EPSS 0% CVSS 7.8
HIGH This Week

In Pixel's use of the Catpipe library, there is possible memory corruption due to a use after free. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.

Denial Of Service Buffer Overflow Privilege Escalation +4
NVD
EPSS 0% CVSS 7.8
HIGH PATCH This Week

In blk_mq_queue_tag_busy_iter of blk-mq-tag.c, there is a possible use after free due to improper locking. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.

Denial Of Service Privilege Escalation Memory Corruption +3
NVD
EPSS 0% CVSS 6.7
MEDIUM PATCH This Month

In l2tp_session_delete and related functions of l2tp_core.c, there is possible memory corruption due to a use after free. Rated medium severity (CVSS 6.7), this vulnerability is low attack complexity.

Denial Of Service Buffer Overflow Privilege Escalation +4
NVD
EPSS 3% CVSS 7.8
HIGH POC This Week

An exploitable vulnerability exists in the cross-reference table repairing functionality of Nitro Software, Inc.’s Nitro Pro 13.13.2.242. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Use After Free Memory Corruption Information Disclosure +1
NVD
EPSS 3% CVSS 6.5
MEDIUM PATCH This Month

An issue was discovered in InspIRCd 2 before 2.0.29 and 3 before 3.6.0. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

Use After Free Denial Of Service Memory Corruption +2
NVD GitHub
EPSS 0% CVSS 7.8
HIGH PATCH This Week

The Linux kernel 4.9.x before 4.9.233, 4.14.x before 4.14.194, and 4.19.x before 4.19.140 has a use-after-free because skcd->no_refcnt was not considered during a backport of a CVE-2020-14356 patch. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

Use After Free Linux Memory Corruption +2
NVD
EPSS 2% CVSS 3.6
LOW POC PATCH Monitor

In PHP versions 7.2.x below 7.2.33, 7.3.x below 7.3.21 and 7.4.x below 7.4.9, while processing PHAR files using phar extension, phar_parse_zipfile could be tricked into accessing freed memory, which. Rated low severity (CVSS 3.6). Public exploit code available.

Information Disclosure Use After Free Memory Corruption +3
NVD
EPSS 2% CVSS 4.3
MEDIUM This Month

SAP 3D Visual Enterprise Viewer, version - 9, allows a user to open manipulated SKP file received from untrusted sources which results in crashing of the application and becoming temporarily. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

SAP Use After Free Denial Of Service +2
NVD
EPSS 2% CVSS 4.3
MEDIUM This Month

SAP 3D Visual Enterprise Viewer, version - 9, allows a user to open manipulated SKP file received from untrusted sources which results in crashing of the application and becoming temporarily. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

SAP Use After Free Denial Of Service +2
NVD
EPSS 2% CVSS 4.3
MEDIUM This Month

SAP 3D Visual Enterprise Viewer, version - 9, allows a user to open manipulated SKP file received from untrusted sources which results in crashing of the application and becoming temporarily. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

SAP Use After Free Denial Of Service +2
NVD
EPSS 0% CVSS 7.8
HIGH This Week

u'During the error occurrence in capture request, the buffer is freed and later accessed causing the camera APP to fail due to memory use-after-free' in Snapdragon Consumer IOT, Snapdragon Mobile in. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.

Use After Free Qualcomm Memory Corruption +8
NVD
EPSS 0% CVSS 7.8
HIGH PATCH This Week

u'Possible use-after-free while accessing diag client map table since list can be reallocated due to exceeding max client limit.' in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT,. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

Use After Free Qualcomm Memory Corruption +18
NVD
EPSS 0% CVSS 7.8
HIGH This Week

u'Calling thread may free the data buffer pointer that was passed to the callback and later when event loop executes the callback, data buffer may not be valid and will lead to use after free. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.

Use After Free Qualcomm Denial Of Service +23
NVD
EPSS 0% CVSS 5.5
MEDIUM POC PATCH This Month

A use after free was found in igc_reloc_struct_ptr() of psi/igc.c of ghostscript-9.25. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. Public exploit code available.

Use After Free Denial Of Service Memory Corruption +2
NVD
EPSS 0% CVSS 5.5
MEDIUM PATCH This Month

A flaw was found in the Linux kernel's implementation of GRO in versions before 5.2. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

Denial Of Service Use After Free Linux +2
NVD
EPSS 0% CVSS 6.8
MEDIUM This Month

Dell G7 17 7790 BIOS versions prior to 1.13.2 contain a UEFI BIOS Boot Services overwrite vulnerability. Rated medium severity (CVSS 6.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Use After Free Memory Corruption Dell +2
NVD
EPSS 0% CVSS 6.8
MEDIUM This Month

Dell Inspiron 7347 BIOS versions prior to A13 contain a UEFI BIOS Boot Services overwrite vulnerability. Rated medium severity (CVSS 6.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Use After Free Memory Corruption Dell +2
NVD
EPSS 1% CVSS 5.5
MEDIUM POC This Month

In Netwide Assembler (NASM) 2.15rc10, there is heap use-after-free in saa_wbytes in nasmlib/saa.c. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Use After Free Memory Corruption Information Disclosure +1
NVD
EPSS 1% CVSS 5.5
MEDIUM PATCH This Month

GNU Bison before 3.7.1 has a use-after-free in _obstack_free in lib/obstack.c (called from gram_lex) when a '\0' byte is encountered. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

Use After Free Denial Of Service Memory Corruption +1
NVD GitHub
EPSS 4% CVSS 3.3
LOW Monitor

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Foxit PhantomPDF 9.7.1.29511. Rated low severity (CVSS 3.3), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Use After Free Memory Corruption Information Disclosure +2
NVD
EPSS 6% CVSS 7.8
HIGH This Week

Adobe Acrobat and Reader versions 2020.009.20074 and earlier, 2020.001.30002, 2017.011.30171 and earlier, and 2015.006.30523 and earlier have an use-after-free vulnerability. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Adobe Use After Free Memory Corruption +3
NVD
EPSS 50% 6.1 CVSS 7.8
HIGH POC KEV THREAT Act Now

Adobe Acrobat and Reader versions 2020.009.20074 and earlier, 2020.001.30002, 2017.011.30171 and earlier, and 2015.006.30523 and earlier have an use-after-free vulnerability. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. Actively exploited in the wild (cisa kev) and public exploit code available.

RCE Memory Corruption Use After Free +1
NVD VulDB
EPSS 0% CVSS 6.7
MEDIUM This Month

Huawei smartphone Taurus-AL00B with versions earlier than 10.1.0.126(C00E125R5P3) have a user after free vulnerability. Rated medium severity (CVSS 6.7), this vulnerability is low attack complexity. No vendor patch available.

Huawei Use After Free Memory Corruption +2
NVD
EPSS 1% CVSS 5.5
MEDIUM POC This Month

njs through 0.4.3, used in NGINX, allows control-flow hijack in njs_value_property in njs_value.c. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.

Information Disclosure Use After Free Memory Corruption +2
NVD GitHub
EPSS 1% CVSS 7.8
HIGH POC This Week

njs through 0.4.3, used in NGINX, has a use-after-free in njs_json_parse_iterator_call in njs_json.c. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Information Disclosure Use After Free Memory Corruption +2
NVD GitHub
EPSS 1% CVSS 7.8
HIGH POC This Week

Artifex MuJS through 1.0.7 has a use-after-free in jsrun.c because of unconditional marking in jsgc.c. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Use After Free Memory Corruption Information Disclosure +1
NVD GitHub
EPSS 2% CVSS 7.8
HIGH POC This Week

A use-after-free vulnerability in xps_finish_image_path() in devices/vector/gdevxps.c of Artifex Software GhostScript v9.50 allows a remote attacker to escalate privileges via a crafted PDF file. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Use After Free Privilege Escalation Memory Corruption +3
NVD
EPSS 1% CVSS 9.8
CRITICAL Act Now

There is a possible memory corruption due to a use after free.Product: AndroidVersions: Android SoCAndroid ID: A-152647365. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Denial Of Service Buffer Overflow Memory Corruption +3
NVD
EPSS 1% CVSS 9.8
CRITICAL Act Now

There is a possible memory corruption due to a use after free.Product: AndroidVersions: Android SoCAndroid ID: A-152236803. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Denial Of Service Buffer Overflow Memory Corruption +3
NVD
EPSS 0% CVSS 7.8
HIGH This Week

In clearPropValue of MediaAnalyticsItem.cpp, there is a possible use-after-free due to improper locking. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.

Google Use After Free Privilege Escalation +2
NVD
EPSS 0% CVSS 7.8
HIGH This Week

In reset of NuPlayerDriver.cpp, there is a possible use-after-free due to improper locking. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.

Google Use After Free Privilege Escalation +2
NVD
EPSS 1% CVSS 7.8
HIGH This Week

DaviewIndy 8.98.7 and earlier version contain Use-After-Free vulnerability, triggered when the user opens a malformed specific file that is mishandled by Daview.exe. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Use After Free Memory Corruption RCE +1
NVD
EPSS 0% CVSS 7.8
HIGH This Week

Use after free issue while processing error notification from camx driver due to not properly releasing the sequence data in Snapdragon Mobile in Saipan, SM8250, SXR2130. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.

Use After Free Qualcomm Denial Of Service +4
NVD
EPSS 1% CVSS 9.8
CRITICAL Act Now

Use-after-free issue could occur due to dangling pointer when generating a frame buffer in OpenGL ES in Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile,. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Use After Free Qualcomm Memory Corruption +10
NVD
EPSS 3% CVSS 8.8
HIGH This Week

Use after free in developer tools in Google Chrome prior to 84.0.4147.89 allowed a remote attacker who had convinced the user to use developer tools to potentially exploit heap corruption via a. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Google Use After Free Denial Of Service +6
NVD
EPSS 3% CVSS 8.8
HIGH This Week

Use after free in tab strip in Google Chrome prior to 84.0.4147.89 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Google Use After Free Denial Of Service +6
NVD
EPSS 1% CVSS 9.6
CRITICAL Act Now

Use after free in extensions in Google Chrome prior to 83.0.4103.116 allowed an attacker who convinced a user to install a malicious extension to potentially perform a sandbox escape via a crafted. Rated critical severity (CVSS 9.6), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Google Use After Free Denial Of Service +2
NVD
EPSS 1% CVSS 9.6
CRITICAL Act Now

Use after free in speech in Google Chrome prior to 83.0.4103.106 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. Rated critical severity (CVSS 9.6), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Google Use After Free Denial Of Service +2
NVD
EPSS 0% CVSS 3.3
LOW POC PATCH Monitor

QEMU 4.2.0 has a use-after-free in hw/net/e1000e_core.c because a guest OS user can trigger an e1000e packet with the data's address set to the e1000e's MMIO address. Rated low severity (CVSS 3.3), this vulnerability is low attack complexity. Public exploit code available.

Use After Free Memory Corruption Information Disclosure +2
NVD
EPSS 6% CVSS 7.8
HIGH PATCH This Week

An elevation of privilege vulnerability exists when the Windows Graphics Component improperly handles objects in memory, aka 'Windows Graphics Component Elevation of Privilege Vulnerability'. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

Microsoft Use After Free Memory Corruption +3
NVD
EPSS 1% CVSS 7.8
HIGH PATCH This Week

An elevation of privilege vulnerability exists when the Windows Graphics Component improperly handles objects in memory, aka 'Windows Graphics Component Elevation of Privilege Vulnerability'. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

Microsoft Use After Free Memory Corruption +3
NVD
EPSS 2% CVSS 8.8
HIGH This Week

When processing callbacks that occurred during window flushing in the parent process, the associated window may die; causing a use-after-free condition. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Buffer Overflow Use After Free Mozilla +6
NVD
EPSS 2% CVSS 6.5
MEDIUM This Month

A NULL pointer dereference, or possible use-after-free flaw was found in Samba AD LDAP server in versions before 4.10.17, before 4.11.11 and before 4.12.4. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Use After Free Denial Of Service Memory Corruption +6
NVD
EPSS 1% CVSS 7.8
HIGH This Week

HUAWEI Mate 30 with versions earlier than 10.1.0.150(C00E136R5P3) have a use after free vulnerability. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Denial Of Service Memory Corruption RCE +3
NVD
EPSS 3% CVSS 6.5
MEDIUM This Month

A use-after-free flaw was found in all samba LDAP server versions before 4.10.17, before 4.11.11, before 4.12.4 used in a AC DC configuration. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Use After Free Denial Of Service Memory Corruption +4
NVD
EPSS 1% CVSS 5.5
MEDIUM PATCH This Month

PlayerGeneric.cpp in MilkyTracker through 1.02.00 has a use-after-free in the PlayerGeneric destructor. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

Use After Free Memory Corruption Information Disclosure +2
NVD GitHub
EPSS 1% CVSS 9.8
CRITICAL PATCH Act Now

In nDPI through 3.2, ndpi_reset_packet_line_info in lib/ndpi_main.c omits certain reinitialization, leading to a use-after-free. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

Use After Free Memory Corruption Information Disclosure +1
NVD GitHub
EPSS 3% CVSS 6.5
MEDIUM PATCH This Month

jp2/opj_decompress.c in OpenJPEG through 2.3.1 has a use-after-free that can be triggered if there is a mix of valid and invalid files in a directory operated on by the decompressor. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

Use After Free Memory Corruption Information Disclosure +3
NVD GitHub
EPSS 4% CVSS 7.8
HIGH PATCH This Week

Adobe Bridge versions 10.0.1 and earlier version have an use after free vulnerability. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity.

Denial Of Service Adobe Memory Corruption +3
NVD
EPSS 3% CVSS 7.8
HIGH PATCH This Week

Adobe Bridge versions 10.0.1 and earlier version have an use after free vulnerability. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity.

Denial Of Service Adobe Memory Corruption +3
NVD
EPSS 0% CVSS 5.5
MEDIUM This Month

An issue was discovered in OpenEXR before 2.5.2. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.

Use After Free Memory Corruption Information Disclosure +5
NVD GitHub
EPSS 5% CVSS 7.8
HIGH This Week

Adobe Acrobat and Reader versions 2020.006.20042 and earlier, 2017.011.30166 and earlier, 2017.011.30166 and earlier, and 2015.006.30518 and earlier have an use-after-free vulnerability. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Adobe Use After Free Memory Corruption +3
NVD
EPSS 1% CVSS 7.8
HIGH This Week

Adobe Acrobat and Reader versions 2020.006.20042 and earlier, 2017.011.30166 and earlier, 2017.011.30166 and earlier, and 2015.006.30518 and earlier have an use-after-free vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.

Adobe Use After Free Memory Corruption +3
NVD
EPSS 1% CVSS 5.5
MEDIUM POC This Month

VMware ESXi (7.0 before ESXi_7.0.0-1.20.16321839, 6.7 before ESXi670-202006401-SG and 6.5 before ESXi650-202005401-SG), Workstation (15.x before 15.5.2), and Fusion (11.x before 11.5.2) contain a. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.

Information Disclosure Use After Free Memory Corruption +5
NVD
EPSS 1% CVSS 8.2
HIGH This Week

VMware ESXi (7.0 before ESXi_7.0.0-1.20.16321839, 6.7 before ESXi670-202004101-SG and 6.5 before ESXi650-202005401-SG), Workstation (15.x before 15.5.5), and Fusion (11.x before 11.5.5) contain a. Rated high severity (CVSS 8.2), this vulnerability is low attack complexity. No vendor patch available.

Information Disclosure Use After Free Memory Corruption +5
NVD
EPSS 2% CVSS 7.5
HIGH PATCH This Week

In FreeRDP before version 2.1.2, there is a use-after-free in gdi_SelectObject. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

Use After Free Memory Corruption Information Disclosure +5
NVD GitHub
EPSS 1% CVSS 5.0
MEDIUM This Month

In LoRa Basics Station before 2.0.4, there is a Use After Free vulnerability that leads to memory corruption. Rated medium severity (CVSS 5.0), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Buffer Overflow Use After Free Denial Of Service +2
NVD GitHub
EPSS 0% CVSS 7.8
HIGH This Week

Use after free issue in camera applications when used randomly over multiple operations due to pointer not set to NULL after free/destroy of the object in Snapdragon Consumer IOT, Snapdragon Mobile. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.

Use After Free Qualcomm Denial Of Service +14
NVD
EPSS 0% CVSS 9.8
CRITICAL Act Now

Function abc_pcie_issue_dma_xfer_sync creates a transfer object, adds it to the session object then continues to work with it. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Google Use After Free Memory Corruption +2
NVD
EPSS 3% CVSS 9.8
CRITICAL Act Now

Use after free in IPv6 subsystem in Intel(R) AMT and Intel(R) ISM versions before 11.8.77, 11.12.77, 11.22.77 and 12.0.64 may allow an unauthenticated user to potentially enable escalation of. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Denial Of Service Privilege Escalation Memory Corruption +4
NVD
EPSS 8% CVSS 9.8
CRITICAL Act Now

Adobe Flash Player Desktop Runtime 32.0.0.371 and earlier, Adobe Flash Player for Google Chrome 32.0.0.371 and earlier, and Adobe Flash Player for Microsoft Edge and Internet Explorer 32.0.0.330 and. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Denial Of Service Microsoft Adobe +6
NVD
EPSS 0% CVSS 7.8
HIGH PATCH This Week

In main of main.cpp, there is possible memory corruption due to a use after free. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.

Denial Of Service Buffer Overflow Privilege Escalation +4
NVD
EPSS 17% CVSS 8.8
HIGH PATCH This Week

A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory, aka 'Microsoft Excel Remote Code Execution Vulnerability'. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

Microsoft Use After Free Memory Corruption +4
NVD
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Quick Facts

Typical Severity
HIGH
Category
memory
Total CVEs
6141

Related CWEs

MITRE ATT&CK

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