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| CVE | Vendors | Products | Updated | CVSS v3.1 |
|---|---|---|---|---|
| CVE-2026-89768 | 1 Linux | 1 Linux Kernel | 2026-09-11 | 2.3 Low |
| In the Linux kernel, the following vulnerability has been resolved: fs: fix user path of nested backing files backing_file_open() derives the path to be stored in the new backing file from user_file->f_path. This is incorrect when user_file itself is a backing file, which is the case for nested stacking filesystems, e.g. overlayfs mounts where the lowerdir of one overlayfs is the merged directory of another. Since commit def3ae83da02 ("fs: store real path instead of fake path in backing file f_path") the f_path of a backing file holds the real path of the intermediate layer, not the path that the user opened. Commit 924577e4f6ca ("ovl: Fix nested backing file paths") fixed this for such configurations by passing file_user_path() from ovl_open_realfile(). However, commit 6af36aeb147a ("lsm: add backing_file LSM hooks") changed the first argument of backing_file_open() from the user path back to the user file and derived the path from user_file->f_path again, silently re-introducing the problem. As a result, files mapped through a nested overlayfs show the wrong path in /proc/<pid>/maps and in perf/ftrace mmap records. For example, with two nested overlayfs mounts: mkdir -p /ovl/{lower,upper,work,merged} /ovl/nested echo hello > /ovl/lower/foo mount -t overlay overlay \ -o lowerdir=/ovl/lower,upperdir=/ovl/upper,workdir=/ovl/work \ /ovl/merged # at least two lowerdirs are needed when upperdir is nonexistent mount -t overlay overlay \ -o lowerdir=/ovl/merged:/ovl/lower /ovl/nested mapping /ovl/nested/foo shows a disconnected path instead of the user path: # readlink /proc/self/fd/3 /ovl/nested/foo # grep foo /proc/self/maps 7f6e2c100000-7f6e2c101000 r--s 00000000 00:24 15813027 /foo The bogus path is derived from the f_path of the intermediate backing file, whose mount is a private clone that d_path() cannot resolve. Fix this by using file_user_path(), which returns the outermost user-visible path for backing files and falls back to &user_file->f_path for regular files. This restores the behavior of commit 924577e4f6ca ("ovl: Fix nested backing file paths") for overlayfs and also fixes the same problem for the other backing_file_open() callers, fuse passthrough and erofs ishare, when their user file is itself a backing file. backing_tmpfile_open() has the same pattern but is not affected: it is only called by ovl_create_tmpfile() for the upper layer, and another overlayfs is rejected as upperdir by the DCACHE_OP_REAL check in ovl_mount_dir_check(), so its user_file can never be a backing file. | ||||
| CVE-2026-80229 | 2 Curl, Haxx | 2 Curl, Curl | 2026-09-11 | 7.5 High |
| When performing transfers via libcurl’s multi interface, pooled TLS connections can outlive their originating easy handles. In OpenSSL 3 provider configurations, libcurl attaches an allocated library context to the easy handle's state and passes it to OpenSSL without acquiring an ownership reference; destroying the easy handle prematurely frees this context while the active connection retains a dangling pointer, leading to a heap-use-after-free upon subsequent I/O or post-handshake operations. | ||||
| CVE-2026-45752 | 1 Oisf | 1 Suricata | 2026-09-11 | 5.9 Medium |
| Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Starting in version 8.0.0 and prior to version 8.0.5, when certain detection transforms are chained, the decompress transform pipeline could read from an inspection buffer after it had been reallocated and freed. The issue is reached during network traffic processing, but requires a malicious rule as Suricata will crash whatever the traffic. Version 8.0.5 contains a fix. As a workaround, avoid rules that chain `gunzip` or `zlib_deflate` with `max-size` bigger than 4096 after another transform. | ||||
| CVE-2026-81988 | 3 Adobe, Apple, Microsoft | 7 Acrobat, Acrobat 2024, Acrobat Dc and 4 more | 2026-09-11 | 7.8 High |
| 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. | ||||
| CVE-2026-78133 | 1 Strongswan | 1 Strongswan | 2026-09-11 | 7.5 High |
| libcharon in strongSwan 6.0.0 through 6.0.7 has a use-after-free in IKEv2 rekeying collision handling. | ||||
| CVE-2026-66798 | 1 Microsoft | 2 Edge, Edge Chromium | 2026-09-11 | 4.3 Medium |
| Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network. | ||||
| CVE-2022-1199 | 3 Linux, Netapp, Redhat | 13 Linux Kernel, Active Iq Unified Manager, H300s and 10 more | 2026-09-11 | 7.5 High |
| 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. | ||||
| CVE-2026-69827 | 1 Microsoft | 14 Windows 10 1607, Windows 10 1809, Windows Server 2012 and 11 more | 2026-09-11 | 8.1 High |
| Concurrent execution using shared resource with improper synchronization ('race condition') in DNS Server allows an unauthorized attacker to execute code over a network. | ||||
| CVE-2026-45751 | 1 Oisf | 1 Suricata | 2026-09-11 | 5.9 Medium |
| Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, Suricata's inspection-buffer helper could leave an inspection pointer referencing freed memory after a chained transform caused the backing buffer to be reallocated. The issue is reached during a specific network traffic processing, and requires a specific but not malicious rule. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, avoid rules that chain `dotprefix` transform after another one. | ||||
| CVE-2026-69573 | 1 Microsoft | 26 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 23 more | 2026-09-11 | 7 High |
| Use after free in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to elevate privileges locally. | ||||
| CVE-2026-70577 | 1 Microsoft | 18 Windows 10 1809, Windows 10 21h2, Windows 10 21h2 and 15 more | 2026-09-11 | 7 High |
| Use after free in Windows Modern Device Management (MDM) allows an authorized attacker to elevate privileges locally. | ||||
| CVE-2026-69605 | 1 Microsoft | 15 Windows 10 21h2, Windows 10 21h2, Windows 10 22h2 and 12 more | 2026-09-11 | 7 High |
| Use after free in Microsoft Install Service allows an authorized attacker to elevate privileges locally. | ||||
| CVE-2026-69472 | 1 Microsoft | 21 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 18 more | 2026-09-11 | 7 High |
| Use after free in Windows Devices Human Interface allows an authorized attacker to elevate privileges locally. | ||||
| CVE-2026-69396 | 1 Microsoft | 26 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 23 more | 2026-09-11 | 7.1 High |
| Use after free in Windows NDIS allows an authorized attacker to elevate privileges over a network. | ||||
| CVE-2026-69296 | 1 Microsoft | 14 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 11 more | 2026-09-11 | 7.1 High |
| Use after free in Windows Device Association Service allows an authorized attacker to elevate privileges over a network. | ||||
| CVE-2026-45447 | 1 Openssl | 1 Openssl | 2026-09-11 | 8.8 High |
| 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. | ||||
| CVE-2026-80162 | 3 Adobe, Apple, Microsoft | 6 Acrobat, Acrobat 2024, Acrobat Dc and 3 more | 2026-09-11 | 5.5 Medium |
| 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. | ||||
| CVE-2026-79909 | 3 Adobe, Apple, Microsoft | 7 Acrobat, Acrobat 2024, Acrobat Dc and 4 more | 2026-09-11 | 7.8 High |
| 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. | ||||
| CVE-2026-81989 | 3 Adobe, Apple, Microsoft | 7 Acrobat, Acrobat 2024, Acrobat Dc and 4 more | 2026-09-11 | 7.8 High |
| 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. | ||||
| CVE-2026-69791 | 1 Microsoft | 18 Windows 10 1809, Windows 10 21h2, Windows 10 21h2 and 15 more | 2026-09-10 | 7 High |
| Use after free in Windows Device Association Service allows an authorized attacker to elevate privileges locally. | ||||