CVE-2026-63387

libevent <2.1.13 and

EUVD-2026-63508

Libevent is an event notification library. Prior to 2.1.13 and 2.2.2-alpha, libevent has an off-by-one stack buffer overflow in evdns.c when dnsnametolabels formats a name-bearing DNS record at the end of the 64 KB stack buffer allocated by evdnsserverrequestformatresponse. The final-label check...

CVE-2026-16909

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to execute arbitrary code due to an off-by-one error in bounds checking...

EUVD-2026-62830

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to execute arbitrary code due to an off-by-one error in bounds checking...

CVE-2026-16909

IBM AIX 7.2, 7.3, and PowerVM VIOS 4.1 contain an off-by-one error in bounds checking, enabling a remote attacker to execute arbitrary code (CVSS 8.8, HIGH). IBM's advisory is linked; no exploitation evidence is provided. Patch availability is not specified in the documents.

CVE-2026-16909 Vulnerabilities in IBM AIX and PowerVM VIOS

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to execute arbitrary code due to an off-by-one error in bounds checking...

CVE-2026-74495

A flaw was found in the igbvf driver of the Linux kernel. An off-by-one error during the cleanup of transmit TX Direct Memory Access DMA buffer mappings can lead to a memory leak. If an error occurs while mapping TX buffers, one DMA mapping may not be properly unmapped, potentially impacting syst...

CVE-2026-72345

A flaw was found in the Linux kernel's mlx5 LAG Link Aggregation Group driver. An off-by-one error in the mlx5lagcreatesinglefdb function's error rollback mechanism can lead to operations on uninitialized memory or a double-free condition. This could result in system instability or a denial of...

glib: off-by-one error in glib/gkeyfile.c via "g_key_file_get_locale_string_list"

A flaw was found in GLib. An off-by-one error can occur in the gkeyfilegetlocalestringlist function in the gkeyfile.c file when loading a key file with an empty value. This flaw can cause an out-of-bounds access of 1 byte or a denial of service when the out-of-bounds access crosses a page boundar...

glib: buffer over-read in glib/gvariant-serialiser.c via gvs_tuple_is_normal()

A flaw was found in GLib. An off-by-one error can occur in the gvstupleisnormal function in the glib/gvariant-serialiser.c file when doing an alignment padding check because the bounds check uses instead of =, causing an out-of-bounds read of only 1 byte. This issue can cause a minor information...

CVE-2026-44687

An off-by-one error in Unbound's default harden-below-nxdomain logic can lead to a denial of service. When an intermediate label under a DNSSEC-signed zone is queried, the flaw incorrectly bypasses configured stub or forward zones, disrupting their name resolution. Mitigation Disable the...

ALSA-2026:57015 Moderate: glib2 security update

GLib provides the core application building blocks for libraries and applications written in C. It provides the core object system used in GNOME, the main loop implementation, and a large set of utility functions for strings and common data structures. Security Fixes: glib: buffer over-read in...

CVE-2026-72339

A flaw was found in the Linux kernel's qede component, which handles network device operations. Under specific memory pressure conditions, an error in how network buffer descriptors BDs are managed can lead to an off-by-one issue. This desynchronizes the BD ring, potentially corrupting memory and...

CVE-2026-12520 Stack buffer overflow and off-by-one writes in Zephyr HL7800 modem AT response handlers

The Sierra Wireless HL7800 cellular modem driver drivers/modem/vendorstandalone/hl7800.c, located at drivers/modem/hl7800.c in v4.4.0 and earlier parses AT responses with roughly twenty handlers that call netbuflinearizevalue, sizeofvalue, buf, 0, len into a 128-byte stack buffer and then write...

CVE-2026-12520

In Zephyr RTOS v4.4.0 and earlier, the HL7800 modem driver's ~20 AT-response handlers write into a 128-byte stack buffer. The +KCELLMEAS handler passes the unbounded wire length as destination size, causing a full stack overflow; other handlers suffer single-byte off-by-one NUL writes. The fix us...

CVE-2026-12520 Stack buffer overflow and off-by-one writes in Zephyr HL7800 modem AT response handlers

The Sierra Wireless HL7800 cellular modem driver drivers/modem/vendorstandalone/hl7800.c, located at drivers/modem/hl7800.c in v4.4.0 and earlier parses AT responses with roughly twenty handlers that call netbuflinearizevalue, sizeofvalue, buf, 0, len into a 128-byte stack buffer and then write...

CVE-2026-72210

A flaw was found in the Linux kernel's NTFS filesystem driver. An error in how the driver checks the boundaries of data it processes, specifically an 'off-by-one' error, allows it to read one byte beyond its intended memory region. This 'out-of-bounds read' could potentially lead to the disclosur...

Linux Distros Unpatched Vulnerability : CVE-2026-72345

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net/mlx5: LAG, Fix off-by-one in single-FDB error rollback On failure at index i, the reverse cleanup loop in mlx5lagcreatesinglefdb starts from i, so the faile...

Linux Distros Unpatched Vulnerability : CVE-2026-74404

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - crypto: ccp - Fix snpfilterreservedmemregions off-by-one Sashiko notes: regarding the bounds check in snpfilterreservedmemregions called via walkiomemresdesc:...

AlmaLinux 9 : glib2 (ALSA-2026:55440)

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:55440 advisory. glib: buffer over-read in glib/gvariant-serialiser.c via gvstupleisnormal CVE-2026-58010 glib: out-of-bounds read in glib/gdatetime.c:gdatetimegetymd via...