CVE-2026-90261

A flaw was found in the btrfs zoned filesystem component of the Linux kernel. During metadata-heavy operations, a specific writeback scenario can prevent the system from properly managing active block groups. This issue can lead to a transaction abortion, forcing the filesystem into a read-only...

CVE-2026-90262

A flaw was found in the Linux kernel's btrfs filesystem. This flaw occurs when the btrfsreadmerkletreepage function encounters a Merkle folio that is not up-to-date. Instead of retrying the read, the system incorrectly treats this as a permanent error, causing transient read failures to become...

CVE-2026-81507

ESF-IDF is the Espressif Internet of Things IOT Development Framework. Prior to 5.2.8, 5.3.6, 5.5.5, 6.0.3, and 6.1-rc1, ESP-IDF BlueDroid L2CAP configuration-option processing in l2cmain.c and l2cutils.c does not consistently validate option lengths against the remaining received packet bytes. A...

CVE-2026-81507 ESF-IDF: Bluetooth Classic L2CAP Heap Memory Disclosure Allowing Unauthorized Access to Sensitive Data

ESF-IDF is the Espressif Internet of Things IOT Development Framework. Prior to 5.2.8, 5.3.6, 5.5.5, 6.0.3, and 6.1-rc1, ESP-IDF BlueDroid L2CAP configuration-option processing in l2cmain.c and l2cutils.c does not consistently validate option lengths against the remaining received packet bytes. A...

CVE-2026-81507

The ESF-IDF (Espressif IoT Development Framework) contains an out-of-bounds read vulnerability in the BlueDroid L2CAP configuration-option processing within l2c_main.c and l2c_utils.c. Due to inconsistent validation of option lengths against received packet bytes, a remote unauthenticated BR/EDR ...

CVE-2026-81507 ESF-IDF: Bluetooth Classic L2CAP Heap Memory Disclosure Allowing Unauthorized Access to Sensitive Data

ESF-IDF is the Espressif Internet of Things IOT Development Framework. Prior to 5.2.8, 5.3.6, 5.5.5, 6.0.3, and 6.1-rc1, ESP-IDF BlueDroid L2CAP configuration-option processing in l2cmain.c and l2cutils.c does not consistently validate option lengths against the remaining received packet bytes. A...

CVE-2026-90257

A flaw was found in the kernel's virtiobt component. When processing responses to Zephyr vendor commands, the system fails to properly check the length of the received data. This can lead to an out-of-bounds read, where adjacent memory is accessed beyond the intended buffer. Consequently, sensiti...

Moderate: Red Hat Security Advisory: tftp security update

An update for tftp is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the...

tftp: tftp-hpa: Denial of Service due to out-of-bounds read/write in remap engine

A flaw was found in tftp-hpa. When the in.tftpd remap engine processes an inverse remap rule that also aborts with a non-empty custom error message, it can pass invalid match offsets to the genmatchstring function. This leads to out-of-bounds read/write operations. A remote, unauthenticated...

CVE-2026-90246

A flaw was found in AppArmor within the Linux kernel. An unprivileged user can exploit an integer overflow vulnerability in the verifytags function by crafting a malicious AppArmor policy. This flaw allows an attacker to trigger an out-of-bounds read during policy loading, which could lead to...

CVE-2026-90230

A flaw was found in the Linux kernel's nvmet subsystem. A remote attacker, by sending a specially crafted NVMe-oF NVMe over Fabrics in-band authentication negotiation message with an invalid transfer length or identifier lengths, could trigger a heap out-of-bounds read in the nvmetauthnegotiate...

CVE-2026-90223

A flaw was found in the Near Field Communication NFC Logical Link Control Protocol LLCP in the Linux kernel. This vulnerability allows a nearby unauthenticated NFC device to trigger an out-of-bounds read during the parsing of Service Name List SNL Type-Length-Value TLV lists. This can occur due t...

CVE-2026-90285

A flaw was found in the Linux kernel's scsi: qla2xxx component. A redundant read of the Vital Product Data VPD flash in the qla2x00sysfsreadvpd function occurs without the necessary locking mechanism. This exposes flash access to concurrent operations, which can lead to unpredictable behavior or...

CVE-2026-90266

A flaw was found in the Linux kernel's btrfs zoned filesystem. When metadata over-commitment occurs during a reclaim operation, the btrfsdelayedrefsrsvrefill function may return a transient error -EAGAIN. This error can cause the current transaction to abort, leading to the filesystem being force...

CVE-2026-90314

A flaw was found in the Linux kernel's remoteproc component. This vulnerability allows a local attacker to trigger an out-of-bounds read by providing a specially crafted offset from firmware. The issue arises because a 32-bit unsigned integer offset is incorrectly handled as a signed integer,...

CVE-2026-90307

A flaw was found in the Linux kernel. A remote attacker could exploit a vulnerability in the SCSI Remote Protocol SRP implementation by sending a specially crafted, truncated credential request. This malformed request causes an out-of-bounds read, leading to a heap information leak of up to 8 byt...

CVE-2026-90263

A flaw was found in the Linux kernel's btrfs filesystem. A local user could bypass the intended read-only protection by setting a POSIX Access Control List ACL on a btrfs filesystem configured as read-only. This vulnerability occurs because the setacl code path fails to properly check the...

CVE-2021-43798

CVE-2021-43798 Directory Traversal and Arbitrary File Read on Grafana Authors: Wagner Alves - Red Team Analyst This exploit leverages Directory Traversal and Arbitrary File Read vulnerabilities in Grafana 8.0 - 8.3, allowing it to read files such as /etc/passwd, /etc/hosts, /home/user/.ssh/idrsa,...

CVE-2026-90177

A flaw was found in the Linux kernel's BPF Berkeley Packet Filter verifier. This vulnerability arises because the atomic Read-Modify-Write RMW verification process does not consistently check pointer types across all execution paths. Specifically, it only records the instruction pointer type when...

CVE-2026-90174

A flaw was found in ksmbd in the Linux kernel. A remote attacker can send a specially crafted login response with an oversized hash size during the authentication process. This can lead to a slab-out-of-bounds read in the ksmbdallocuser function, potentially resulting in information disclosure or...