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CVE-2026-81988

Acrobat Reader | Use After Free (CWE-416)

Acrobat Reader is affected by a Use After Free vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Products
CVE-2026-78133

Use-After-Free in strongSwan IKEv2 Rekeying Collision Handling

libcharon in strongSwan 6.0.0 through 6.0.7 has a use-after-free in IKEv2 rekeying collision handling.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
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Products
CVE-2022-1199

kernel: Null pointer dereference and use after free in ax25_release()

A flaw was found in the Linux kernel. This flaw allows an attacker to crash the Linux kernel by simulating amateur radio from the user space, resulting in a null-ptr-deref vulnerability and a use-after-free vulnerability.

CVSS 3.1 · 7.5 High EPSS 2.2% KEV · Not listed
Vendors
CVE-2026-45447

Heap Use-After-Free in the PKCS7_verify() Function

Issue summary: A specially crafted PKCS#7 or S/MIME signed message could trigger a use-after-free during PKCS#7 signature verification. Impact summary: A use-after-free may result in process crashes, heap corruption, or potentially remote code execution. When processing a PKCS#7 or S/MIME signed message, if the SignedData digestAlgorithms field is present as an empty ASN.1 SET, OpenSSL may incorrectly free a caller-owned BIO during PKCS7_verify(). A subsequent use of the BIO by the calling application results in a use-after-free condition. In the common case this occurs when the application later calls BIO_free() on the BIO originally passed to PKCS7_verify(). Depending on allocator behavior and application-specific BIO usage patterns, this may result in a crash or other memory corruption. In some application contexts this may potentially be exploitable for remote code execution. Applications that process PKCS#7 or S/MIME signed messages using OpenSSL PKCS#7 APIs may be affected. Applications using the CMS APIs for this processing are not affected. The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this issue, as the affected code is outside the OpenSSL FIPS module boundary.

CVSS 3.1 · 8.8 High EPSS 4.0% KEV · Not listed
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Products
CVE-2026-80162

Acrobat Reader | Use After Free (CWE-416)

Acrobat Reader is affected by a Use After Free vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to disclose sensitive information. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Products
CVE-2026-79909

Acrobat Reader | Use After Free (CWE-416)

Acrobat Reader is affected by a Use After Free vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Products
CVE-2026-81989

Acrobat Reader | Use After Free (CWE-416)

Acrobat Reader is affected by a Use After Free vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Products
CVE-2026-21102

Use‑After‑Free in DualDAR Allows Root Privilege Escalation

Use after free in DualDAR prior to SMR Sep-2026 Release 1 allows local privileged attackers to execute arbitrary code with root privilege.

CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
CVE-2026-87933

DaveGamble cJSON cJSON_Utils.c cJSONUtils_MergePatch use after free

A vulnerability was found in DaveGamble cJSON up to 1.7.19. The affected element is the function cJSONUtils_MergePatch of the file cJSON_Utils.c. The manipulation results in use after free. The attack may be launched remotely. The exploit has been made public and could be used. The pull request to fix this issue awaits acceptance.

CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
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CVE-2026-87877

zstd-jni 1.3.8-4 through 1.5.7-13 Use-After-Free via Setters Called After close()

zstd-jni versions before 1.5.7-14 fail to validate closed state in setDict, setLongMax, setLevel and setRefMultipleDDicts methods of stream classes. Attackers can call these methods on closed streams to write through freed native pointers, corrupting unrelated objects or crashing the JVM.

CVSS 4.0 · 7 High EPSS < 1% KEV · Not listed
Vendors
Products
CVE-2026-7476

Mali GPU Kernel Driver allows access to already freed memory

Use After Free vulnerability in Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user process to perform improper GPU memory processing operations to access already freed memory. This issue affects Bifrost GPU Kernel Driver: from r49p3 through r49p5, r51p0, from r54p1 through r54p2; Valhall GPU Kernel Driver: from r49p3 through r49p5, from r51p0 through r54p3, r55p0; Arm 5th Gen GPU Architecture Kernel Driver: from r49p3 through r49p5, from r51p0 through r54p3, r55p0.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Arm
CVE-2026-5729

Mali GPU Kernel Driver allows access to already freed memory

Use After Free vulnerability in Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user process to perform valid GPU processing operations to access already freed memory. This issue affects Valhall GPU Kernel Driver: from r50p0 through r54p3, r55p0; Arm 5th Gen GPU Architecture Kernel Driver: from r50p0 through r54p3, r55p0.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Arm
CVE-2026-11891

Mali GPU Userspace Driver allows access to already freed memory

Use After Free vulnerability in Arm Ltd Valhall GPU Userspace Driver, Arm Ltd Arm 5th Gen GPU Architecture Userspace Driver allows a non-privileged user process to perform valid GPU processing operations, including via WebGL or WebGPU, to access already freed memory. This issue affects Valhall GPU Userspace Driver: from r46p0 through r49p5, from r50p0 through r54p3, r55p0; Arm 5th Gen GPU Architecture Userspace Driver: from r46p0 through r49p5, from r50p0 through r54p3, r55p0.

CVSS 3.1 · 5.1 Medium EPSS < 1% KEV · Not listed
Vendors
Arm