CVE-2026-63387 Libevent: Off-by-one stack buffer overflow in dnsname_to_labels via crafted DNS server response

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-2026-73256 Mongoose: HTTP/1.0 detection off-by-one enables request smuggling via chunked TE

Mongoose is an embedded web server and network library. Prior to 7.22, a remote unauthenticated attacker can exploit an HTTP/1.0 reverse-proxy deployment by sending a request with Transfer-Encoding: chunked and conflicting framing. The httpcb function in src/http.c tests hm.proto.len with an...

CVE-2026-73256 Mongoose: HTTP/1.0 detection off-by-one enables request smuggling via chunked TE

Mongoose is an embedded web server and network library. Prior to 7.22, a remote unauthenticated attacker can exploit an HTTP/1.0 reverse-proxy deployment by sending a request with Transfer-Encoding: chunked and conflicting framing. The httpcb function in src/http.c tests hm.proto.len with an...

OESA-2026-3434 unbound security update

Unbound is a validating, recursive, caching DNS resolver. It is designed to be fast and lean and incorporates modern features based on open standards. To help increase online privacy, Unbound supports DNS-over-TLS which allows clients to encrypt their communication. Unbound is available for most...

RockyLinux 10 : glib2 (RLSA-2026:57015)

The remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:57015 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 v...

Oracle Linux 10 : glib2 (ELSA-2026-57015)

The remote Oracle Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-57015 advisory. - Fix CVE-2026-15588: limit D-Bus auth line read length - Fix CVE-2026-58011: range validation in gdatetimeaddfull - Fix CVE-2026-58012: buffer...

AlmaLinux 10 : glib2 (ALSA-2026:57015)

The remote AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:57015 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 vi...

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...

libkcapi: IV reuse in libkcapi one-shot symmetric cipher chunking causes cipher state reset across chunk boundaries

A flaw was found in libkcapi. When performing one-shot symmetric cipher operations on large inputs over 64 KiB in stateful modes such as Counter CTR or Cipher Block Chaining CBC, the library improperly reuses the Initialization Vector IV for each internal data chunk. A remote attacker could...

popt-devel: popt-static: Off-by-one in poptStuffArgs

A flaw was found in popt, a command-line option parsing library. An off-by-one error in the poptStuffArgs function, when repeatedly called by a host application or through deep alias nesting, can lead to corruption of internal program data. This corruption could potentially enable a local attacke...

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...

Oracle Linux 9 : glib2 (ELSA-2026-55440)

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-55440 advisory. - Fix CVE-2026-15588: limit D-Bus auth line read length - Fix CVE-2026-58010: off-by-one in GVariant tuple offset checking - Fix CVE-2026-58012: buffe...

PT-2026-78665

Name of the Vulnerable Software and Affected Versions IBM AIX versions 7.2 and 7.3 IBM PowerVM VIOS version 4.1 Description An off-by-one error in bounds checking allows a remote attacker to execute arbitrary code. An off-by-one error is a logic error where an iteration or loop runs one time too...