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CVE-2026-64909

Microsoft Office Remote Code Execution Vulnerability

Integer underflow (wrap or wraparound) in Microsoft Office allows an unauthorized attacker to execute code locally.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Microsoft
Products
365 Apps Microsoft 365 Office 2016 and 6 more
CVE-2026-70638

llama.cpp b1886–b7445 Integer Overflow via new_1batch() in llama-android.cpp

llama.cpp builds b1886 through b7445 contain an integer overflow vulnerability in the LLaMA-Android JNI wrapper where the new_1batch() function multiplies sizeof(llama_seq_id) by an attacker-controlled n_seq_max parameter without overflow validation, causing heap buffer allocation to wrap and allocate insufficient memory. Attackers can exploit this by providing a crafted n_seq_max value through a malicious model file or JNI call to trigger heap corruption and achieve denial of service or arbitrary code execution on Android applications using the LLaMA-Android binding.

CVSS 4.0 · 8.5 High EPSS < 1% KEV · Not listed
Vendors
Ggml Ggml-org
Products
Llama.cpp Llama.cpp
CVE-2026-70633

TimescaleDB 2.29.1 Out-of-Bounds Read DoS via Gorilla Compression Reverse Iterator

TimescaleDB through 2.29.1, fixed in commit 517c13e, contains an out-of-bounds read vulnerability in the Gorilla compression reverse row iterator that allows authenticated attackers to cause a denial of service by storing a crafted compressed datum with an internally inconsistent BitArray. Attackers with DML access to a compressed hypertable can trigger an unsigned integer wraparound in the reverse iterator bucket index computation, causing a read beyond the end of the bucket array, resulting in a SIGSEGV crash that can be repeatedly triggered on each subsequent reverse-order scan.

CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
Vendors
Timescale
Products
Timescaledb
CVE-2026-70628

FFmpeg 0.5 < 9.0 DVB Subtitle Parser Heap Buffer Overflow via WTV File

FFmpeg versions from 0.5 up to, but not including, 9.0 contain a signed integer overflow vulnerability in the DVB subtitle parser in libavcodec/dvbsub_parser.c that allows attackers to trigger a heap buffer overflow by supplying a crafted WTV file. The overflow causes the bounds-check guard expression to wrap to INT_MIN, bypassing the PARSE_BUF_SIZE comparison and invoking memcpy() with attacker-controlled data into a heap buffer, resulting in an out-of-bounds heap write and potential memory corruption or code execution.

CVSS 4.0 · 8.5 High EPSS < 1% KEV · Not listed
Vendors
Ffmpeg
Products
Ffmpeg
CVE-2026-70462

rsync 3.1.0 < 3.5.0 Signed Integer Overflow via MSG_IO_TIMEOUT

rsync 3.1.0 before 3.5.0 contains a signed integer overflow vulnerability in the I/O timeout implementation that allows attackers to permanently disable connection timeouts by injecting MSG_IO_TIMEOUT messages carrying non-positive (zero or negative) values. Attackers can craft malicious MSG_IO_TIMEOUT messages that cause the timeout variable to wrap to a non-positive value, preventing the timeout check from firing and enabling idle or stalled connections to hold daemon slots indefinitely, leading to resource exhaustion.

CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
Vendors
Rsync Project Samba
Products
Rsync Rsync
CVE-2026-43629

llama.cpp b4882–b9058 Buffer Overflow in KV Cache State Restore

llama.cpp builds b4882 through b9058 contain a heap buffer overflow vulnerability in the KV cache state restore path where the state_read_data() function computes write size without overflow checking, allowing attackers with write access to the slot_save_path directory to corrupt heap memory. Attackers can craft malicious state files where cell_count multiplication overflows or exceeds tensor buffer allocation to write attacker-controlled bytes past buffer boundaries, potentially resulting in heap metadata corruption, model weight corruption, or arbitrary code execution via function pointer overwrite.

CVSS 4.0 · 9.2 Critical EPSS < 1% KEV · Not listed
Vendors
Ggml Ggml-org
Products
Llama.cpp Llama.cpp
CVE-2026-43628

llama.cpp b3978–b9058 Integer Underflow via DRY Sampler

llama.cpp builds b3978 through b9058 contain an integer underflow and out-of-bounds read vulnerability in the DRY sampler that allows unauthenticated attackers to trigger a heap buffer underflow by sending a crafted HTTP request with dry_allowed_length set to INT32_MIN to the /v1/completions or /v1/chat/completions endpoints. Attackers can exploit this vulnerability to crash the server with SIGSEGV causing denial of service for all connected users, or corrupt token sampling probabilities by reading garbage values from memory before the allocated buffer.

CVSS 4.0 · 8.5 High EPSS < 1% KEV · Not listed
Vendors
Ggml Ggml-org
Products
Llama.cpp Llama.cpp
CVE-2026-43627

llama.cpp b1283–b9058 Integer Overflow in llama_batch_init() Function

llama.cpp builds b1283 through b9058 contain an integer overflow vulnerability in the llama_batch_init() function where unchecked multiplications in malloc() calls can wrap past INT32_MAX when computing allocation sizes. Attackers can pass specially crafted parameters to trigger integer overflow, causing heap corruption and potentially achieving arbitrary code execution through subsequent batch operations that write past allocated buffer boundaries.

CVSS 4.0 · 8.5 High EPSS < 1% KEV · Not listed
Vendors
Ggml Ggml-org
Products
Llama.cpp Llama.cpp
CVE-2026-48435

CAI Content Credentials | Integer Underflow (Wrap or Wraparound) (CWE-191)

CAI Content Credentials is affected by an Integer Underflow (Wrap or Wraparound) vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denial-of-service condition. Exploitation of this issue does not require user interaction.

CVSS 3.1 · 6.2 Medium EPSS < 1% KEV · Not listed
Vendors
Adobe
Products
C2pa C2pa-web C2patool and 3 more
CVE-2026-48444

CAI Content Credentials | Integer Overflow or Wraparound (CWE-190)

CAI Content Credentials is affected by an Integer Overflow or Wraparound vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denial-of-service condition. Exploitation of this issue does not require user interaction.

CVSS 3.1 · 6.2 Medium EPSS < 1% KEV · Not listed
Vendors
Adobe
Products
C2pa C2pa-web C2patool and 3 more
CVE-2026-48445

CAI Content Credentials | Integer Overflow or Wraparound (CWE-190)

CAI Content Credentials is affected by an Integer Overflow or Wraparound vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denial-of-service condition. Exploitation of this issue does not require user interaction.

CVSS 3.1 · 6.2 Medium EPSS < 1% KEV · Not listed
Vendors
Adobe
Products
C2pa C2pa-web C2patool and 3 more
CVE-2026-71389

CAI Content Credentials | Integer Underflow (Wrap or Wraparound) (CWE-191)

CAI Content Credentials is affected by an Integer Underflow (Wrap or Wraparound) vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denial-of-service condition. Exploitation of this issue does not require user interaction.

CVSS 3.1 · 6.2 Medium EPSS < 1% KEV · Not listed
Vendors
Adobe
Products
C2pa C2pa-web C2patool and 3 more
CVE-2026-48387

CAI Content Credentials | Integer Overflow or Wraparound (CWE-190)

CAI Content Credentials is affected by an Integer Overflow or Wraparound vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denial-of-service condition. Exploitation of this issue does not require user interaction.

CVSS 3.1 · 6.2 Medium EPSS < 1% KEV · Not listed
Vendors
Adobe
Products
C2pa C2pa-web C2patool and 3 more
CVE-2026-70329

Microsoft Outlook Remote Code Execution Vulnerability

Integer overflow or wraparound in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Vendors
Microsoft
Products
365 Apps Office 2019 Office 2021 and 3 more