CVE-2026-55991

In NLnet Labs Unbound 1.22.0 up to and including 1.25.1, a remote unauthenticated client can trigger a libngtcp2 assertion if compiled with assertions on and terminate the entire Unbound process using a single DNS-over-QUIC DoQ connection and one normal DNS query. This is caused by an erroneous...

CVE-2026-47143

Capstone is a disassembly framework. Versions prior to 6.0.0-Alpha8 and 5.0.8 have a NULL pointer dereference in modRMRequired and decode when disassembling 3DNow! opcodes 0F 0F in builds compiled with -DCAPSTONEX86REDUCE, allowing a remote attacker to crash any application using the reduced X86...

CVE-2026-47143

Capstone disassembly framework vulnerability CVE-2026-47143 affects Capstone builds compiled with -DCAPSTONE_X86_REDUCE. A NULL pointer dereference in modRMRequired() and decode() when disassembling 3DNow! opcodes (0F 0F) can crash applications using the reduced X86 library if given a crafted inp...

glibc: glibc: Application crash or uninitialized memory read via crafted DNS response

A flaw was found in glibc GNU C Library. The deprecated functions nsprintrrf, nsprintrr, and fpnquery do not properly validate the length of RDATA Resource Record Data in a DNS Domain Name System response when processing specific record types like LOC, CERT, TKEY, or TSIG. A remote attacker could...

CVE-2026-47275 nanomq NULL Pointer Dereference in MQTTv5 Client CONNECT Decoder Leading to Remote DoS

In nanomq versions 0.24.11 and earlier, a NULL pointer dereference in nnimqttv5msgdecodeconnect allows a malicious MQTT broker to crash any connecting NanoMQ MQTTv5 client including bridge mode with a single packet, causing remote denial of service via SIGSEGV. In nnimqttv5msgdecodeconnect...

pacemaker: Pacemaker: Denial of Service via integer overflow in remote message decompression

A flaw was found in Pacemaker. An unauthenticated remote attacker can exploit an integer overflow vulnerability in the remote message decompression process. By sending a specially crafted compressed remote message before authentication, an attacker can cause memory corruption, leading to a denial...

CVE-2026-34150

CVE-2026-34150 describes a heap buffer overflow in wazuh-analysisd for Wazuh versions 1.0.0–4.14.4 that can be exploited by an unauthenticated remote attacker to crash the Wazuh manager’s analysis engine, leading to complete loss of SIEM alert processing. The attack leverages the default wazuh/wa...

CVE-2025-56363

A null pointer dereference vulnerability exists in the Matter SDK connectedhomeip before 1.4.0, affecting the ReadRevisionAttribute function used in multiple clusters Channel, Account Login, TargetNavigator, etc.. The function lacks proper validation of the delegate pointer before dereferencing. ...

NATS Server: Remote crash via integer overflow in Connz pagination

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CVE-2026-60109

Zeek before 8.0.9 contains a null pointer dereference vulnerability in its Kerberos protocol analyzer that allows unauthenticated remote attackers to crash the sensor by sending a crafted KRBERROR message with error-code 25 KDCERRPREAUTHREQUIRED containing a PA-DATA element with padata-type 2, 3,...

CVE-2026-11404 Cesanta Mongoose before 7.22 Out-of-Bounds Read in MG_TLS_BUILTIN ClientHello Session ID Parsing

Cesanta Mongoose before 7.22 contains an out-of-bounds read in the built-in TLS server function mgtlsserverrecvhello, which uses an attacker-controlled sessionidlen byte from a TLS ClientHello as a buffer index without validating it against the length of received data. A remote, unauthenticated...

CVE-2026-60109 Zeek < 8.0.9 Null Pointer Dereference DoS via Kerberos KRB_ERROR Parsing

Zeek before 8.0.9 contains a null pointer dereference vulnerability in its Kerberos protocol analyzer that allows unauthenticated remote attackers to crash the sensor by sending a crafted KRBERROR message with error-code 25 KDCERRPREAUTHREQUIRED containing a PA-DATA element with padata-type 2, 3,...

CVE-2026-33630

A flaw was found in c-ares. A use-after-free / double-free vulnerability exists in the query-completion handling path, where a query callback is invoked while the query is still linked in internal lookup structures. A remote attacker can exploit this via aresgetaddrinfo over TCP by sending crafte...

CVE-2026-15173

A flaw was found in Wireshark. A remote attacker could exploit a vulnerability in the pcapng file parser, leading to a crash of the application. This denial of service DoS could prevent legitimate users from accessing the service, impacting its availability. Mitigation To mitigate this issue, use...

SUSE CVE-2026-60002

ssh in OpenSSH before 10.4 can have a use-after-free when a server changes its host key during a key re-exchange. This outcome occurs only on the client side...

PT-2026-56810

Name of the Vulnerable Software and Affected Versions Zeek versions prior to 8.0.9 Description A null pointer dereference exists in the Kerberos protocol analyzer. An unauthenticated remote attacker can cause the sensor to crash by sending a specially crafted KRB ERROR message with error-code 25...

CVE-2026-58207

CVE-2026-58207 affects NATS Server. A client sending account-scoped Connz pagination requests could cause an integer overflow in the pagination logic, crashing the server before the response window is bounded. Affected versions are before 2.14.3 and before 2.12.12; fixed releases are 2.14.3 and 2...

CVE-2026-58207 NATS Server: Remote crash via integer overflow in Connz pagination

NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.3 and 2.12.12, a client able to send account-scoped connection monitoring requests could crash the server by supplying Connz pagination Offset and Limit values that overflowed internal...

CVE-2026-58207 NATS Server: Remote crash via integer overflow in Connz pagination

NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.3 and 2.12.12, a client able to send account-scoped connection monitoring requests could crash the server by supplying Connz pagination Offset and Limit values that overflowed internal...

httpd: mod_authn_socache: NULL pointer dereference can cause a child process crash

A flaw was found in the modauthnsocache module of httpd. This vulnerability allows an unauthenticated remote user to crash a child process due to a NULL pointer dereference when the server is operating in a caching forward proxy configuration...