Alertas de Seguridad de la Información

U Crítico vulnerabilidad

01/07/2026

[CVE-2026-7840] UltraVNC repeater through 1.8.2.2 contains a global buffer overflow in its embedded HTTP administrat…

UltraVNC repeater through 1.8.2.2 contains a global buffer overflow in its embedded HTTP administration server. The functions wi_senderr() and wi_replyhdr() in repeater/webgui/webutils.c write the caller-supplied HTTP request URI into a fixed 1000-byte global buffer (hdrbuf) via unchecked sprintf calls. The HTTP receive buffer accepts URIs up to approximately 150 KB (WI_RXBUFSIZE = 153600), so an …

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Alto vulnerabilidad

01/07/2026

[CVE-2026-20458] In Modem, there is a possible memory corruption due to a missing bounds check. This could lead to re…

In Modem, there is a possible memory corruption due to a missing bounds check. This could lead to remote escalation of privilege, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01402160; Issue ID: MSV-7298.

nvdaltovulnerabilidad CVSS 7.5 NVD

M Alto vulnerabilidad

01/07/2026

[CVE-2026-14191] An out-of-bounds heap write exists in the RAR5 recovery-volume (.rev) parser in WinRAR and UnRAR (Re…

An out-of-bounds heap write exists in the RAR5 recovery-volume (.rev) parser in WinRAR and UnRAR (RecVolumes5::ReadHeader in recvol5.cpp). The RecItems vector is sized only when the first .rev file in a set is processed; subsequent .rev files supply an independent RecNum value that is validated against that file's own TotalCount field but never against the actual size of RecItems. A crafted set of…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

01/07/2026

[CVE-2026-54592] Oj (Optimized JSON) is a JSON parser and Object marshaller packaged as a Ruby gem. In versions prior…

Oj (Optimized JSON) is a JSON parser and Object marshaller packaged as a Ruby gem. In versions prior to 3.17.3, Oj::Doc#each_child, when invoked recursively over a deeply nested JSON document, overflows a fixed-size stack buffer and aborts the process, leading to DoS. In a two-step chain in ext/oj/fast.c, doc_each_child increments doc->where past the where_path[MAX_STACK = 100] array with no boun…

nvdaltovulnerabilidad CVSS 7.5 NVD

G Crítico vulnerabilidad

30/06/2026

[CVE-2026-14152] Out of bounds read and write in ANGLE in Google Chrome prior to 150.0.7871.47 allowed a remote attac…

Out of bounds read and write in ANGLE in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Low)

nvdcriticovulnerabilidad CVSS 9.6 NVD

G Alto vulnerabilidad

30/06/2026

[CVE-2026-14087] Heap buffer overflow in WebNN in Google Chrome on Windows prior to 150.0.7871.47 allowed a remote at…

Heap buffer overflow in WebNN in Google Chrome on Windows prior to 150.0.7871.47 allowed a remote attacker who had compromised the renderer process to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Low)

nvdaltovulnerabilidad CVSS 8.8 NVD

M Crítico vulnerabilidad

30/06/2026

[CVE-2026-14241] Memory safety bugs present in Firefox 152.0.3. Some of these bugs showed evidence of memory corrupti…

Memory safety bugs present in Firefox 152.0.3. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 152.0.4.

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Alto vulnerabilidad

29/06/2026

[CVE-2026-13592] A vulnerability was detected in liftoff-sr CIPster up to e8e9dba09bf56962807d3504b783ccdb6287f3e4. A…

A vulnerability was detected in liftoff-sr CIPster up to e8e9dba09bf56962807d3504b783ccdb6287f3e4. Affected by this issue is the function BufWriter::append of the component EtherNet IP Message Handler. Performing a manipulation results in out-of-bounds write. Remote exploitation of the attack is possible. The exploit is now public and may be used. This product follows a rolling release approach fo…

nvdaltovulnerabilidad CVSS 7.3 NVD

M Alto vulnerabilidad

28/06/2026

[CVE-2026-58049] FFmpeg's RASC video decoder (decode_dlta in libavcodec/rasc.c) performs 32-bit reads and writes at t…

FFmpeg's RASC video decoder (decode_dlta in libavcodec/rasc.c) performs 32-bit reads and writes at the row cursor before the NEXT_LINE row-boundary check and validates the DLTA region in pixel rather than byte units, so a DLTA run on a PAL8 frame can access several bytes past the row allocation. A crafted media stream using the RASC FourCC, decoded by libavcodec, triggers a bitstream-controlled ou…

nvdaltovulnerabilidad CVSS 8.6 NVD

Z Alto vulnerabilidad

28/06/2026

[CVE-2026-10643] Zephyr's IP socket recvmsg() implementation (subsys/net/lib/sockets/sockets_inet.c, insert_pktinfo()…

Zephyr's IP socket recvmsg() implementation (subsys/net/lib/sockets/sockets_inet.c, insert_pktinfo()) validated the user-supplied ancillary (msg_control) buffer using only the payload length (msg->msg_controllen < pktinfo_len) before writing a full control message consisting of an aligned cmsg header plus the payload. Because the check omitted the cmsg header size, a control buffer whose length fa…

nvdaltovulnerabilidad CVSS 8.7 NVD

F Alto vulnerabilidad

27/06/2026

[CVE-2026-45258] dsp_mmap_single() validated the requested mapping by checking the sum of the user-supplied offset an…

dsp_mmap_single() validated the requested mapping by checking the sum of the user-supplied offset and length against the buffer size. This addition could overflow, so that a large offset and length wrapped around and passed the check. The offset was then narrowed from 64 to 32 bits when converted to a buffer address, yielding a mapping that extended past the audio buffer into unrelated kernel me…

nvdaltovulnerabilidad CVSS 7.8 NVD

G Alto vulnerabilidad

26/06/2026

[CVE-2026-46604] The TIFF decoder can panic when decoding an invalid image with an out-of-bounds strip offset.

The TIFF decoder can panic when decoding an invalid image with an out-of-bounds strip offset.

nvdaltovulnerabilidad CVSS 7.5 NVD

M Alto vulnerabilidad

26/06/2026

[CVE-2026-57876] An unauthenticated out-of-bounds write vulnerability exists in onvif.cgi in GeoVision GV-LPC2011 and…

An unauthenticated out-of-bounds write vulnerability exists in onvif.cgi in GeoVision GV-LPC2011 and GV-LPC2211 V1.12 and earlier. The vulnerability is caused by insufficient bounds checking when processing HTTP request body data. A remote attacker may exploit this vulnerability by sending a crafted request with excessive input, causing memory corruption and resulting in a denial of service.

nvdaltovulnerabilidad CVSS 7.5 NVD

W Alto vulnerabilidad

25/06/2026

[CVE-2026-6325] Out-of-bounds write in SetSuitesHashSigAlgo when processing an oversized signature algorithms list, …

Out-of-bounds write in SetSuitesHashSigAlgo when processing an oversized signature algorithms list, allowing a write past the bounds of the destination buffer.

nvdaltovulnerabilidad CVSS 7.5 NVD

W Alto vulnerabilidad

25/06/2026

[CVE-2026-6679] A heap buffer overflow could occur in the DTLS 1.3 ACK serialization path before the connecting peer…

A heap buffer overflow could occur in the DTLS 1.3 ACK serialization path before the connecting peer is authenticated. The buffer overflow was due to an integer truncation when computing the length of the ACK record-number list, causing an undersized buffer to be allocated and then overrun. This affects builds using DTLS 1.3 and wolfSSL version 5.9.0 and earlier. A fix was added to the 5.9.1 relea…

nvdaltovulnerabilidad CVSS 7.5 NVD

W Alto vulnerabilidad

25/06/2026

[CVE-2026-55958] Out-of-bounds write in the Renesas TSIP TLS 1.3 transcript buffer. In tsip_StoreMessage() the capaci…

Out-of-bounds write in the Renesas TSIP TLS 1.3 transcript buffer. In tsip_StoreMessage() the capacity check guarding the fixed message bag (MSGBAG_SIZE) sets an error code but fails to return, so execution falls through to an XMEMCPY that writes past the end of the buffer once the accumulated TLS 1.3 handshake transcript exceeds MSGBAG_SIZE (8 KB), corrupting adjacent heap state and potentially c…

nvdaltovulnerabilidad CVSS 7.5 NVD

R Crítico vulnerabilidad

25/06/2026

[CVE-2026-56786] RTKLIB through 2.4.3 contains an out-of-bounds write vulnerability in decode_type1033 function that …

RTKLIB through 2.4.3 contains an out-of-bounds write vulnerability in decode_type1033 function that fails to clamp length counters to destination buffer size, allowing up to 191-byte overflow into fixed 64-byte descriptor fields. An attacker controlling an NTRIP or serial RTCM3 correction stream can craft a valid CRC-bearing type-1033 message to corrupt adjacent rtcm_t object members, potentially …

nvdcriticovulnerabilidad CVSS 9.8 NVD

J Alto vulnerabilidad

25/06/2026

[CVE-2026-49839] jq is a command-line JSON processor. Prior to 1.8.2,` jq --rawfile` can turn a handled oversized-str…

jq is a command-line JSON processor. Prior to 1.8.2,` jq --rawfile` can turn a handled oversized-string error into invalid-state reuse and a real heap out-of-bounds write in assertion-disabled builds. When jv_load_file(raw=1) reads an attacker-controlled file, it repeatedly appends file chunks to the same jv string accumulator. Once jv_string_append_buf() returns jv_invalid_with_msg("String too lo…

nvdaltovulnerabilidad CVSS 7.1 NVD

V Alto vulnerabilidad

25/06/2026

[CVE-2026-57455] Vim is an open source, command line text editor. Prior to 9.2.0698, the single-byte branch of spell_…

Vim is an open source, command line text editor. Prior to 9.2.0698, the single-byte branch of spell_soundfold_sofo() in src/spell.c translates a word through a spell file's SOFO (sound-folding) byte map into a caller-owned result buffer. Its copy loop advances the output index ri with no upper bound and terminates only on the input NUL, writing one byte per input byte into the MAXWLEN-element stac…

nvdaltovulnerabilidad CVSS 7.8 NVD

V Alto vulnerabilidad

25/06/2026

[CVE-2026-55693] Vim is an open source, command line text editor. Prior to 9.2.0653, the tree_count_words() function …

Vim is an open source, command line text editor. Prior to 9.2.0653, the tree_count_words() function in src/spellfile.c fills in the word-count fields of a spell-file word trie by walking it iteratively with a depth counter. The counter is bounded only by the trie structure itself; it is never checked against the size of the fixed MAXWLEN-element stack arrays it indexes (arridx[], curi[], wordcount…

nvdaltovulnerabilidad CVSS 7.8 NVD