CVE-2026-56416

In NLnet Labs Unbound up to and including version 1.25.1, when the validator builds the canonical RDATA form for an RRSIG-covered PX/RP/MINFO/SOA RRset, it computes the address of the second embedded domain name as 'datstart + dnamevaliddatstart, ...' and passes it straight to 'querydnametolower'...

CVE-2026-53910

diff3 tool from GNU diffutils is vulnerable to a heap‑based buffer overflow due to multiple signed integer overflows in line‑mapping calculations. Incorrect arithmetic in mapping line ranges can result in corrupted values being used for memory allocation and loop bounds. When processing crafted...

EUVD-2026-47661

A heap-buffer-overflow flaw was found in Directory Server 389-ds-base. When a DN contains a legacy-quoted value, the server won't close the heap allocation allowing another call to refer to the same memory pointer causing a denial of service or an arbitrary memory write operation...

libreoffice: LibreOffice Calc: Arbitrary code execution via heap buffer overflow in formula compilation

A vulnerability has been identified in LibreOffice Calc. An application crash may occur if a user opens a malicious spreadsheet that contains excessively long formulas. Successful exploitation of this vulnerability could result in a denial of service or potentially lead to arbitrary code executio...

CVE-2026-61390

There is a heap buffer overflow vulnerability in some Hikvision cameras, which may allow unauthenticated attackers to cause device malfunction by sending specially crafted packets...

PT-2026-63392

Name of the Vulnerable Software and Affected Versions NLnet Labs Unbound versions prior to 1.25.2 Description A heap buffer overflow occurs when the validator builds the canonical RDATA form for an RRSIG-covered PX, RP, MINFO, or SOA RRset. The system computes the address of the second embedded...

PT-2026-63341

There is a heap buffer overflow vulnerability in some Hikvision cameras, which may allow unauthenticated attackers to cause device malfunction by sending specially crafted packets...

CVE-2026-55869

Heap-Based Buffer Overflow in KMREQ Handling...

AlmaLinux 9 : libtiff (ALSA-2026:42668)

The remote AlmaLinux 9 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2026:42668 advisory. libtiff: libtiff: Heap-based buffer overflow via crafted PixarLog-compressed TIFF image CVE-2026-12912 Tenable has extracted the preceding description block...

CVE-2026-47254

libheif is a HEIF and AVIF file format decoder and encoder. Prior to version 1.22.0, Track::initsampletimingtable in libheif/sequences/track.cc stores an out-of-bounds chunk index mchunks.size into mpresentationtimeline when the number of chunks defined in the stco box is less than the number of...

CVE-2026-45382

libde265 prior to v1.0.19 contains a heap-buffer-overflow read in decode_slice_unit_tiles caused by unvalidated PPS tile geometry (ctbAddrRS computed from PPS colBd/rowBd without ensuring it fits CtbAddrRStoTS.size() == sps->PicSizeInCtbsY). A malformed PPS that passes set_derived_values but e...

CVE-2026-45382

libde265 is an open source implementation of the h.265 video codec. Prior to version 1.0.19, decodercontext::decodesliceunittiles libde265/decctx.cc:920 reads pps.CtbAddrRStoTSctbAddrRS at line 966 where ctbAddrRS = ctbY ctbsWidth + ctbX is computed from PPS-supplied colBd/rowBd arrays without...

CVE-2026-63881

A flaw was found in the Linux kernel's AMD KFD Kernel Fusion Driver debugger component. The getqueueids function, responsible for handling queue identifiers, contains an integer overflow vulnerability. This occurs when calculating the size of an array, where a malicious local user could provide a...

Security update for aws-nitro-enclaves-cli

This update for aws-nitro-enclaves-cli fixes the following issues CVE-2026-41677: openssl: out-of-bounds read in PEM password callback when returning an oversized length bsc1270542. CVE-2026-41678: openssl: OOB write due to incorrect bounds assertion in aes::unwrapkey bsc1270705. CVE-2026-41681:...

ANT-2026-19SGCVZZ · Alembic · Heap Buffer Overflow

heap-buffer-overflow high Severity Claude high · Security research firm high · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Trail of Bits. ANT-2026-19SGCVZZ: Heap buffer overflow in Ogawa...

ANT-2026-D7FC4YDQ · rabbitmq-c · Heap-buffer-overflow

heap-buffer-overflow high Severity Claude critical · Security research firm high · Maintainer - Discovered by Claude Opus 4.6 REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Trail of Bits. ANT-2026-D7FC4YDQ: Heap-buffer-overflow in rabbitmq-c libFuzz...

ANT-2026-8DRZW7VM · ClamAV · Integer Overflow

integer-overflow high CVE-2026-20215 GHSA-6gff-7f37-2v35 Severity Claude high · Security research firm high · Maintainer high Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Trail of Bits. ANT-2026-8DRZW7VM: Intege...

ANT-2026-G1XC2M5V · CGIF · other

other high Severity Claude high · Security research firm - · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis of this finding, sealed at approval. ANT-2026-G1XC2M5V: cgif/cgiffuzzer/20251218020844unknown/ cgif's LZW encoder computes a conservative upper bound for the...

ANT-2026-QQ2P9M9V · openexr · Heap-buffer-overflow

heap-buffer-overflow high CVE-2026-45696 Severity Claude high · Security research firm high · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Ada Logics. ANT-2026-QQ2P9M9V: Heap-buffer-overflow in...

ANT-2026-NQ9DPCK0 · gdal · Heap-buffer-overflow

heap-buffer-overflow high Severity Claude high · Security research firm high · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Ada Logics. ANT-2026-NQ9DPCK0: Heap-buffer-overflow in hfaopen.cpp:3533 Wh...