CVE-2026-40369

This is a rewrite and summary of VoidSec’s public technical analysis of CVE-2026-40369, with an added flowchart and defensive notes for my own understanding. All core technical details come from his research. I did not perform independent reverse engineering on this bug. CVE-2026-40369: Defensive...

CVE-2020-16898-Bad-Neighbor

================================================================================= Simple policy to detect CVE-2020-16898: Bad Neighbor Following functionality are provided by the script :: 1 Script checks on heuristic described here:...

CLEANSTART-2026-ST70744 NewNTUnicodeString does not check for string length overflow

CVE-2026-39824 affects multiple packages. NewNTUnicodeString does not check for string length overflow. See references for individual vulnerability details...

CVE-2026-73260

The Mongoose embedded web server and network library is vulnerable to an out-of-bounds read due to a length-counter underflow in its built-in TLS X.509 DER parser (prior to version 7.23 ). Specifically, the functions mg_der_to_tlv() and mg_der_next() fail to verify if a long-form DER element leng...

CVE-2026-106465

The NetX Secure DTLS server sends a HelloVerifyRequest carrying a freshly generated cookie, but never checks the cookie a client returns. The ClientHello parser copies the client's cookie bytes over the value the server issued, and the server then decides whether the client has been verified from...

CVE-2026-102054

An Improper Handling of Length Parameter Inconsistency vulnerability in L2ALM of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to obtain stale PFE packet memory via VXLAN overlay-ping traffic sent to a local VTEP...

CVE-2026-75085 Out-of-bounds read from received-frame length underflow in the STM32WBA IEEE 802.15.4 driver

The STM32WBA IEEE 802.15.4 driver in drivers/ieee802154/ieee802154stm32wba.c computed the packet length of a received frame as pktlen = rxframe-length - IEEE802154FCSLENGTH without first checking that the radio-reported length could hold an FCS. pktlen is a uint8t, so a reported length of 0 or 1...

CVE-2026-75085

The STM32WBA IEEE 802.15.4 driver in drivers/ieee802154/ieee802154_stm32wba.c is vulnerable to an out-of-bounds read due to a length underflow. The driver calculates packet length by subtracting IEEE802154_FCS_LENGTH from the radio-reported length without first verifying that the reported length ...

CVE-2026-75085 Out-of-bounds read from received-frame length underflow in the STM32WBA IEEE 802.15.4 driver

The STM32WBA IEEE 802.15.4 driver in drivers/ieee802154/ieee802154stm32wba.c computed the packet length of a received frame as pktlen = rxframe-length - IEEE802154FCSLENGTH without first checking that the radio-reported length could hold an FCS. pktlen is a uint8t, so a reported length of 0 or 1...

CVE-2026-75084 Out-of-bounds write in the TI CC1200 IEEE 802.15.4 driver from an unvalidated radio-supplied packet length

The CC1200 sub-GHz IEEE 802.15.4 driver takes the PHY packet length from the first byte of the radio's RX FIFO in getpacketlength and validates it in verifyrxfifovalidity drivers/ieee802154/ieee802154cc1200.c. That validation only enforced a lower bound pktlen data and then calls netbufadd with t...

CVE-2026-75084

The TI CC1200 IEEE 802.15.4 driver contains an out-of-bounds write vulnerability in drivers/ieee802154/ieee802154_cc1200.c. The root cause is insufficient validation of the PHY packet length from the radio's RX FIFO in verify_rxfifo_validity(), which fails to bound large values when the radio is ...

CVE-2026-19673 Out-of-bounds read and net_buf length underflow in Zephyr Ethernet L2 when parsing a truncated VLAN header

ethernetrecv in subsys/net/l2/ethernet/ethernet.c validates only that the first netbuf of a received frame holds a plain 14-byte struct netethhdr. When the ethertype is 0x8100 and VLAN is enabled on the interface, the same buffer is reinterpreted as the 18-byte struct netethvlanhdr without...

CVE-2026-19673

The Zephyr RTOS Ethernet L2 layer contains an out-of-bounds read and net_buf length underflow in subsys/net/l2/ethernet/ethernet.c. When parsing a truncated VLAN header (ethertype 0x8100), the ethernet_recv() function fails to re-verify the buffer length when reinterpreting the header as an 18-by...

CVE-2026-19673 Out-of-bounds read and net_buf length underflow in Zephyr Ethernet L2 when parsing a truncated VLAN header

ethernetrecv in subsys/net/l2/ethernet/ethernet.c validates only that the first netbuf of a received frame holds a plain 14-byte struct netethhdr. When the ethertype is 0x8100 and VLAN is enabled on the interface, the same buffer is reinterpreted as the 18-byte struct netethvlanhdr without...

CVE-2026-98394

In the Linux kernel, the following vulnerability has been resolved: afunix: Return immediately when manageoob returns NULL for 0-length buffer. Fahad Alharbi reported that recv0, MSGPEEK triggers busy-wait in unixstreamreadgeneric if recv is blocking and the last skb in the queue is MSGOOB skb. I...

CVE-2026-98393

In the Linux kernel, the following vulnerability has been resolved: net: ipv4: Fix UDP length overflow with PMTU discover and big MTU This commit bounds cork-base.fragsize to IPMAXMTU to avoid a possible overflow of UDP length that triggers a WARN in udpsetlenshort when setsockopt IPMTUDISCOVER i...

CURL-CVE-2026-92386 server-set cookie aborts cookie jar load

When writing a long cookie name and value to a Netscape cookie jar, a remote HTTP server can make curl write a record that exceeds its line-length parsing limit. Consequently, any subsequent curl invocation reading from that same cookie jar using --cookie silently aborts parsing prematurely upon...

Rocky Linux 8 [CIQ] Security Update: libxml2 / libxml2-debuginfo / libxml2-debugsource / libxml2-devel / etc (crlsa-2026_80675)

The Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202680675 advisory. libxml2: libxml2: Heap-based buffer overflow in xmlXPtrEval due to xpointer length saturation CVE-2026-86142 Tenable has extracted the preceding description block...

CVE-2026-105007

An elevation of privilege vulnerability exists in the Network Driver Interface Specification NDIS when ndis.sys fails to check the length of a buffer prior to copying memory to it. To exploit the vulnerability, in a local attack scenario, an attacker could run a specially crafted application to...

CVE-2026-105007

An elevation of privilege vulnerability exists in the Network Driver Interface Specification (NDIS) because ndis.sys fails to validate buffer length before copying memory. In a local attack scenario, an attacker with the ability to execute a malicious application could run a specially crafted app...