Seguridad de la Información

Alertas de Seguridad de la Información

Vulnerabilidades explotadas activamente, incidentes y análisis relevantes para México y LATAM. Actualizado automáticamente desde fuentes oficiales.

48 vulnerabilidades en CISA KEV — explotación activa confirmada Ver todas →

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cwe-193 × Limpiar todo ×

M Alto vulnerabilidad

[CVE-2026-42618] In NTFS-3G before 2026.7.7, a heap buffer overflow exists in ntfs_decompress() in compress.c that al…

In NTFS-3G before 2026.7.7, a heap buffer overflow exists in ntfs_decompress() in compress.c that allows an attacker to corrupt one byte of heap memory in the SUID-root ntfs-3g binary by crafting a malicious NTFS image. The overflow is triggered by reading the special crafted file.

M Alto vulnerabilidad

[CVE-2026-101014] A vulnerability was detected in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this vulne…

A vulnerability was detected in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this vulnerability is the function opendmarc_util_cleanup in the library libopendmarc/opendmarc_util.c of the component DMARC Record Parser. Performing a manipulation results in off-by-one. The attack may be initiated remotely. The exploit is now public and may be used. The patch is named b3b1da9264bc80324094…

M Alto vulnerabilidad

[CVE-2026-100889] A vulnerability was detected in Trusted Domain Project OpenDKIM up to 2.11.0. Affected is the functi…

A vulnerability was detected in Trusted Domain Project OpenDKIM up to 2.11.0. Affected is the function dkim_qp_decode of the file util.c of the component Decoder. The manipulation results in off-by-one. The attack may be performed from remote. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

M Alto vulnerabilidad

[CVE-2026-81396] Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute cod…

Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

M Alto vulnerabilidad

Vulnerabilidad alta en D-Link DIR-605 B1v202WWB03: desbordamiento de búfer en L2TP

D-Link DIR-605 B1v202WWB03 presenta una vulnerabilidad de off-by-one en el analizador L2TP Control Message Parser que permite manipulación remota del parámetro peer_hostname. Afecta principalmente a routers utilizados como puntos de acceso VPN en PyMEs y oficinas remotas en LATAM. El acceso requiere conocimiento técnico avanzado, pero el impacto potencial incluye ejecución remota de código en la red corporativa.

M Alto vulnerabilidad

[CVE-2026-46369] Nimiq is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus…

Nimiq is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. Through 1.5.0, the validity store uses a strict lower-bound comparison that expires a stored transaction too early relative to Transaction::is_valid_at, allowing a remote attacker to replay the same signed transaction during a blocks_per_batch minus one block window and cause the sender …

M Alto vulnerabilidad

[CVE-2026-65927] Off-by-one Error vulnerability in Apache Tomcat impacting the [N] flag on the rewrite valves causes …

Off-by-one Error vulnerability in Apache Tomcat impacting the [N] flag on the rewrite valves causes rewrite processing to restart at the second rule rather than the first rule. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from 9.0.0.M1 through 9.0.120. The following versions were EOL at the time the CVE was created but are known to be…

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M Alto vulnerabilidad

[CVE-2026-63387] Libevent is an event notification library. Prior to 2.1.13 and 2.2.2-alpha, libevent has an off-by-o…

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 dnsname_to_labels formats a name-bearing DNS record at the end of the 64 KB stack buffer allocated by evdns_server_request_format_response. The final-label check permits j plus label_len plus one to equal buf_len, after which the terminating null byte is writ…

M Alto vulnerabilidad

[CVE-2026-14899] The code to parse MIME headers for display when forwarding a message (if the setting to view all hea…

The code to parse MIME headers for display when forwarding a message (if the setting to view all headers was enabled) had an off-by-one error, allowing a single byte to be read from the memory after the buffer for the headers, and potentially crashing Thunderbird. This vulnerability was fixed in Thunderbird 153 and Thunderbird 140.13.

G Alto vulnerabilidad

[CVE-2026-58380] A flaw was found in GIMP's PNM file format parser. When parsing a specially crafted PNM file, the pn…

A flaw was found in GIMP's PNM file format parser. When parsing a specially crafted PNM file, the pnmscanner_gettoken() function writes a null terminator one byte past the end of a stack-allocated buffer due to an off-by-one error in the loop boundary check. This could lead to memory corruption, potentially resulting in denial of service or arbitrary code execution.

L Alto vulnerabilidad

[CVE-2026-12413] An invalidly formatted IKEv2 fragment causes the Libreswan pluto daemon to crash and restart. Contin…

An invalidly formatted IKEv2 fragment causes the Libreswan pluto daemon to crash and restart. Continued exploitation would cause a denial of service. The function reassemble_v2_incoming_fragments() would ignore unknown outer payloads but still store these in a fixed size array msg_digest.digest[PAYLIMIT]. An off-by-one error in the assertion PASSERT(logger, md->digest_roof < elemsof(md->digest)) c…

U Alto vulnerabilidad

[CVE-2026-7831] UltraVNC viewer through 1.8.2.2 contains an off-by-one stack buffer overflow in the RFB ServerInit m…

UltraVNC viewer through 1.8.2.2 contains an off-by-one stack buffer overflow in the RFB ServerInit message handler. In vncviewer/ClientConnection.cpp, when the server-supplied nameLength equals exactly 2024 the code declares a 2024-byte stack buffer _dn[2024] and calls ReadString(_dn, 2024). ReadString writes the NUL terminator at buf[length], i.e., _dn[2024], one byte past the end of the stack bu…

G Alto vulnerabilidad

[CVE-2026-58014] A flaw was found in GLib. An off-by-one error can occur in the g_key_file_get_locale_string_list fun…

A flaw was found in GLib. An off-by-one error can occur in the g_key_file_get_locale_string_list 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 boundary.

L Crítico vulnerabilidad

[CVE-2026-53309] In the Linux kernel, the following vulnerability has been resolved: ocfs2/dlm: fix off-by-one in dl…

In the Linux kernel, the following vulnerability has been resolved: ocfs2/dlm: fix off-by-one in dlm_match_regions() region comparison The local-vs-remote region comparison loop uses '

M Alto vulnerabilidad

[CVE-2026-56790] CANBoat through 6.22, fixed in commit a5a22b7, contains an off-by-one global buffer overflow in the …

CANBoat through 6.22, fixed in commit a5a22b7, contains an off-by-one global buffer overflow in the searchForPgn() function in analyzer/pgn.c that allows remote attackers to crash the application. Attackers can deliver a crafted NMEA-2000 message with an out-of-range PGN value over CAN bus or N2K-over-IP to trigger an out-of-bounds array access and denial of service.

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L Crítico vulnerabilidad

[CVE-2026-53088] In the Linux kernel, the following vulnerability has been resolved: net: bcmgenet: fix off-by-one i…

In the Linux kernel, the following vulnerability has been resolved: net: bcmgenet: fix off-by-one in bcmgenet_put_txcb The write_ptr points to the next open tx_cb. We want to return the tx_cb that gets rewinded, so we must rewind the pointer first then return the tx_cb that it points to. That way the txcb can be correctly cleaned up.

L Alto vulnerabilidad

[CVE-2026-53036] In the Linux kernel, the following vulnerability has been resolved: bpf, arm64: Fix off-by-one in c…

In the Linux kernel, the following vulnerability has been resolved: bpf, arm64: Fix off-by-one in check_imm signed range check check_imm(bits, imm) is used in the arm64 BPF JIT to verify that a branch displacement (in arm64 instruction units) fits into the signed N-bit immediate field of a B, B.cond or CBZ/CBNZ encoding before it is handed to the encoder. The macro currently tests for (imm > 0 &…

M Alto vulnerabilidad

[CVE-2026-8357] LibreOffice Calc compiles cell formulas when opening a spreadsheet. A heap buffer overflow existed w…

LibreOffice Calc compiles cell formulas when opening a spreadsheet. A heap buffer overflow existed when compiling a very long formula made up of many opening tokens. The array that tracks nesting depth was allocated one element too small for that worst case, so such a formula wrote one element past its end. In fixed versions the array is sized to hold the largest possible nesting.

M Alto vulnerabilidad

[CVE-2026-54410] nanoMODBUS through v1.23.0 contains an off-by-one buffer overflow in the recv_msg_header() function …

nanoMODBUS through v1.23.0 contains an off-by-one buffer overflow in the recv_msg_header() function of the Modbus/TCP server that allows remote unauthenticated attackers to write one attacker-controlled byte past the end of the 260-byte receive buffer by sending a crafted MBAP frame whose Length field is set to 255. The overflow corrupts the adjacent buffer-index field of the nanoMODBUS state stru…

L Alto vulnerabilidad

[CVE-2026-52907] In the Linux kernel, the following vulnerability has been resolved: media: rockchip: rkcif: fix off…

In the Linux kernel, the following vulnerability has been resolved: media: rockchip: rkcif: fix off by one bugs Change these comparisons from > vs >= to avoid accessing one element beyond the end of the arrays. While at it, use ARRAY_SIZE instead of the _MAX enum values. [fix cosmetic issues]