Alertas de Seguridad de la Información

Z Alto vulnerabilidad

21/07/2026

[CVE-2026-10678] The MCTP-over-I2C+GPIO target binding in Zephyr (subsys/pmci/mctp/mctp_i2c_gpio_target.c) processes …

The MCTP-over-I2C+GPIO target binding in Zephyr (subsys/pmci/mctp/mctp_i2c_gpio_target.c) processes pseudo-register writes from an I2C bus master byte-by-byte in mctp_i2c_gpio_target_write_received() without validating the order or the receive buffer. In the affected versions the MCTP_I2C_GPIO_RX_MSG_ADDR (data) handler dereferences and writes through b->rx_pkt without checking that the receive bu…

nvdaltovulnerabilidad CVSS 8.1 NVD

L Alto vulnerabilidad

19/07/2026

[CVE-2026-53391] In the Linux kernel, the following vulnerability has been resolved: NFSv4/pNFS: reject zero-length …

In the Linux kernel, the following vulnerability has been resolved: NFSv4/pNFS: reject zero-length r_addr in nfs4_decode_mp_ds_addr nfs4_decode_mp_ds_addr() decodes the r_netid and r_addr opaques of a netaddr4 from a GETDEVICEINFO multipath-DS body, then immediately calls strrchr(buf, '.') to locate the port separator. Both decodes use xdr_stream_decode_string_dup(), and the current code checks …

nvdaltovulnerabilidad CVSS 7.5 NVD

L Alto vulnerabilidad

19/07/2026

[CVE-2026-53392] In the Linux kernel, the following vulnerability has been resolved: NFSv4/flexfiles: reject zero fi…

In the Linux kernel, the following vulnerability has been resolved: NFSv4/flexfiles: reject zero filehandle version count ff_layout_alloc_lseg() decodes the filehandle-version array count from the flexfiles layout body. The value is used as the count for kzalloc_objs(), and the current code only rejects NULL. A zero count yields ZERO_SIZE_PTR, which can be stored in dss_info->fh_versions even t…

nvdaltovulnerabilidad CVSS 7.5 NVD

L Alto vulnerabilidad

19/07/2026

[CVE-2026-53383] In the Linux kernel, the following vulnerability has been resolved: ksmbd: reject non-VALID session…

In the Linux kernel, the following vulnerability has been resolved: ksmbd: reject non-VALID session in compound request branch smb2_check_user_session() takes a shortcut for any operation that is not the first in a COMPOUND request: it reuses work->sess (the session bound by the first operation) and validates only the SessionId, then returns "valid". It never re-checks work->sess->state == SMB2_…

nvdaltovulnerabilidad CVSS 7.5 NVD

C Alto vulnerabilidad

16/07/2026

[CVE-2026-62309] CoreDNS is a DNS server written in Go. Prior to 1.14.4, a single 28-byte UDP datagram can crash the …

CoreDNS is a DNS server written in Go. Prior to 1.14.4, a single 28-byte UDP datagram can crash the CoreDNS process when the proxyproto plugin is enabled because plugin/pkg/proxyproto/proxyproto.go PacketConn.ReadFrom handles a PROXY v2 header with non-UDP transport such as family byte 0x11, reassigns addr from a nil readFrom result after parseProxyProtocol errors, and calls addr.String() in the w…

nvdaltovulnerabilidad CVSS 7.5 NVD

M Alto vulnerabilidad

16/07/2026

[CVE-2026-15352] A vulnerability exists in the Health & Safety (HS) application of NASA's Core Flight System (cFS). T…

A vulnerability exists in the Health & Safety (HS) application of NASA's Core Flight System (cFS). The flaw allows the application to crash via segmentation fault when processing a routine Housekeeping Telemetry request, leading to denial of service.

nvdaltovulnerabilidad CVSS 7.5 NVD

C Alto vulnerabilidad

14/07/2026

[CVE-2025-56363] A null pointer dereference vulnerability exists in the Matter SDK (connectedhomeip) before 1.4.0, af…

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. A remote unauthenticated attacker can exploit this issue by sending a crafted read request, causing…

nvdaltovulnerabilidad CVSS 7.5 NVD

M Alto vulnerabilidad

14/07/2026

[CVE-2026-50673] Null pointer dereference in Windows Kernel allows an authorized attacker to elevate privileges local…

Null pointer dereference in Windows Kernel allows an authorized attacker to elevate privileges locally.

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

14/07/2026

[CVE-2026-50315] Null pointer dereference in Windows Image Acquisition allows an authorized attacker to elevate privi…

Null pointer dereference in Windows Image Acquisition allows an authorized attacker to elevate privileges locally.

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

13/07/2026

[CVE-2026-58101] Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow denial of service via NULL pointer derefer…

Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow denial of service via NULL pointer dereference. X509V3_EXT_d2i(ext) returns NULL when an extension's DER value fails to parse. basicC, ia5string, and auth_att dereference its result without a NULL check. keyid_data also dereferences akid->keyid, which is NULL for an empty AKI SEQUENCE (DER 30 00) even when the parse succeeds. A caller inv…

nvdaltovulnerabilidad CVSS 7.5 NVD

Z Alto vulnerabilidad

09/07/2026

[CVE-2026-60109] Zeek before 8.0.9 contains a null pointer dereference vulnerability in its Kerberos protocol analyze…

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 KRB_ERROR message with error-code 25 (KDC_ERR_PREAUTH_REQUIRED) containing a PA-DATA element with padata-type 2, 3, 11, or 19. Attackers can exploit a parser and analyzer state mismatch where proc_padata() derefe…

nvdaltovulnerabilidad CVSS 7.5 NVD

L Alto vulnerabilidad

08/07/2026

[CVE-2026-58250] NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Pr…

NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.12.8 and 2.11.17, an unauthenticated peer with network access to a leafnode listener with compression enabled could crash the server during the pre-authentication leafnode handshake by sending repeated leafnode INFO protocol messages before authentication and account setup completed. This i…

nvdaltovulnerabilidad CVSS 7.5 NVD

M Alto vulnerabilidad

06/07/2026

[CVE-2026-38976] mrubyc through 3.4.1 was found to contain a NULL pointer dereference in src/vm.c in op_super() / OP_…

mrubyc through 3.4.1 was found to contain a NULL pointer dereference in src/vm.c in op_super() / OP_SUPER due to a missing runtime guard for top-level super.

nvdaltovulnerabilidad CVSS 7.5 NVD

M Alto vulnerabilidad

01/07/2026

[CVE-2026-36912] A NULL pointer dereference in the AP4_AtomSampleTable::GetSample() function of Aleksoid1978 MPC-BE b…

A NULL pointer dereference in the AP4_AtomSampleTable::GetSample() function of Aleksoid1978 MPC-BE before commit 4341cb3 allows attackers to cause a Denial of Service (DoS) via a crafted MP4 file.

nvdaltovulnerabilidad CVSS 7.5 NVD

M Alto vulnerabilidad

29/06/2026

[CVE-2026-56017] JavaScript::Minifier::XS versions before 0.16 for Perl crash with a NULL pointer dereference when th…

JavaScript::Minifier::XS versions before 0.16 for Perl crash with a NULL pointer dereference when the first meaningful token of the input is a slash. The regexp versus division disambiguator in JsTokenizeString (XS.xs) inspects the previous token's last byte to choose between a regexp literal and a division operator. When a slash is the first meaningful token, with the start of input or only whit…

nvdaltovulnerabilidad CVSS 7.5 NVD

L Alto vulnerabilidad

26/06/2026

[CVE-2026-53284] In the Linux kernel, the following vulnerability has been resolved: btrfs: only release the dirty p…

In the Linux kernel, the following vulnerability has been resolved: btrfs: only release the dirty pages io tree after successful writes [WARNING] With extra warning on dirty extent buffers at umount (aka, the next patch in the series), test case generic/388 can trigger the following warning about dirty extent buffers at unmount time: BTRFS critical (device dm-2 state E): emergency shutdown …

nvdaltovulnerabilidad CVSS 7.5 NVD

L Alto vulnerabilidad

26/06/2026

[CVE-2026-53281] In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Avoid NULL pointer …

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Avoid NULL pointer dereference or refcount corruption Commit 60f030f7418d ("iommu/vt-d: Avoid use of NULL after WARN_ON_ONCE") fixed a NULL pointer dereference in an unlikely situation partly. If dev_pasid is not found in the dev_pasids list, it remains NULL. However, the teardown operations are executed uncondition…

nvdaltovulnerabilidad CVSS 8.8 NVD

E Alto vulnerabilidad

26/06/2026

[CVE-2026-47220] Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.37.0 u…

Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.37.0 until 1.37.5 and 1.38.3, when the %REQUESTED_SERVER_NAME(X:Y)% is used in log format and host related options is specified, like HOST_FIRST, SNI_FIRST, it's possible to crash Envoy when the specified host header is missing in the request headers. This vulnerability is fixed in 1.37.5 and 1.38.3.

nvdaltovulnerabilidad CVSS 7.5 NVD

M Alto vulnerabilidad

26/06/2026

[CVE-2026-57873] An unauthenticated NULL pointer dereference vulnerability exists in IEEE8021x_upload.cgi in GeoVisio…

An unauthenticated NULL pointer dereference vulnerability exists in IEEE8021x_upload.cgi in GeoVision GV-LPC2011 and GV-LPC2211 V1.12 and earlier. The vulnerability is caused by improper validation of multipart upload headers when processing certificate-related upload fields. A remote attacker may exploit this vulnerability by sending a malformed multipart request, causing the affected CGI process…

nvdaltovulnerabilidad CVSS 7.5 NVD

M Alto vulnerabilidad

26/06/2026

[CVE-2026-57875] An unauthenticated NULL pointer dereference vulnerability exists in the HTTP request parsing logic o…

An unauthenticated NULL pointer dereference vulnerability exists in the HTTP request parsing logic of multiple CGI components in GeoVision GV-LPC2011 and GV-LPC2211 V1.12 and earlier. The vulnerability is caused by improper validation of required HTTP request metadata before it is used by the affected components. A remote attacker may exploit this vulnerability by sending a specially crafted HTTP …

nvdaltovulnerabilidad CVSS 7.5 NVD