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CVE-2026-25646

LIBPNG has a heap buffer overflow in png_set_quantize

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. Prior to 1.6.55, an out-of-bounds read vulnerability exists in the png_set_quantize() API function. When the function is called with no histogram and the number of colors in the palette is more than twice the maximum supported by the user's display, certain palettes will cause the function to enter into an infinite loop that reads past the end of an internal heap-allocated buffer. The images that trigger this vulnerability are valid per the PNG specification. This vulnerability is fixed in 1.6.55.

CVSS 4.0 · 8.3 High EPSS 1.1% KEV · Not listed
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CVE-2025-43892

A buffer over-read vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions may allow an authenticated remote attacker to return a portion of device memory in the redirect response via submitting a specially crafted request.

CVSS 3.1 · 4.1 Medium EPSS < 1% KEV · Not listed
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CVE-2026-20311

Cisco IOS XE Software Web UI Denial of Service Vulnerability

A vulnerability in the web-based management interface of Cisco IOS XE Software could allow an authenticated, remote attacker with low privileges to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient error handling in the web-based management interface. An attacker could exploit this vulnerability by authenticating with a malformed certificate. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.

CVSS 3.1 · 6.3 Medium EPSS < 1% KEV · Not listed
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CVE-2026-66312

Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability

Buffer over-read in Microsoft Edge (Chromium-based) allows an authorized attacker to execute code over a network.

CVSS 3.1 · 6.5 Medium EPSS 1.1% KEV · Not listed
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CVE-2026-25288

Buffer Over-read in WLAN Firmware

Transient DOS when processing a short target wake time channel usage response frame with insufficient packet size.

CVSS 3.1 · 7.4 High EPSS < 1% KEV · Not listed
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CVE-2026-50813

SQLite local information disclosure via Session Extension merge path

An issue in SQLite before Fossil check-in 869a51ae84df allows a local attacker to obtain sensitive information via the Session Extension changeset concat/changegroup merge path

CVSS 3.1 · 6.1 Medium EPSS < 1% KEV · Not listed
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CVE-2026-63091

ProFTPD mod_sftp Signed Integer Overflow via SCP Size-Record Parser

ProFTPD before 1.3.9c and 1.3.10rc3 contains a signed integer overflow vulnerability in the mod_sftp module's SCP size-record parser that allows authenticated low-privilege attackers to bypass ASLR by sending a crafted file size value of UINT64_MAX, which results in a negative off_t value. Attackers can exploit the subsequent conversion to uint32_t, causing an approximately 4 GB requested read length and forcing the server to read beyond the end of the SSH channel data and write overread process memory into the uploaded file. In tested configurations, the disclosed data contains libc, libcrypto, and PIE pointers sufficient to derive their randomized base addresses, thereby bypassing ASLR and enabling reliable exploitation of memory corruption vulnerabilities in the same process.

CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
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CVE-2026-55970

Apache Thrift: C++ heap out-of-bounds read in THeaderTransport::readHeaderFormat()

Buffer Over-read vulnerability in Apache Thrift C++ bindings. This issue affects Apache Thrift: before 0.24.0. Users are recommended to upgrade to version 0.24.0, which fixes the issue.

CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
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CVE-2026-55238

xrdp: Malformed Confirm Active capability sets cause out-of-bounds reads

xrdp is an open source RDP server. Versions 0.10.6 and prior contain a vulnerability concerning the processing of RDP Confirm Active PDU, where during the capability negotiation phase, the parser did not perform sufficient length validation for specific capability sets. A remote, unauthenticated attacker could potentially exploit this flaw by sending a specially crafted RDP packet containing malformed capability data. Due to missing bounds checks, the xrdp process may perform out-of-bounds memory reads, which can result in the termination of the service (Denial of Service). However, since xrdp forks a new process for each connection by default, an out-of-bounds read causing a process crash is unlikely to bring down the entire xrdp service. This issue has been fixed in version 0.10.6.1.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
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CVE-2026-47088

cyrus-imapd: Cyrus IMAP: Information disclosure via heap exposure in MIME comment parsing

An issue was discovered in cyrus-imapd in Cyrus IMAP through 3.12.2. There is heap exposure in nested MIME comment parsing. An authenticated IMAP user could craft an email message containing an RFC 822 comment ending with a backslash. When parsing the message, the server would read past the message's end in memory, and read into the heap, returning the read content to the user.

CVSS 3.1 · 3.1 Low EPSS < 1% KEV · Not listed
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CVE-2026-62353

TDengine: Authenticated Out-of-Bounds Read in SQL Lexer tGetToken

TDengine is a time-series database optimized for Internet of Things devices. Prior to 3.4.1.14, source/libs/parser/src/parTokenizer.c tGetToken() incremented past a trailing backslash in a SQL string literal such as 'abc\ and read one byte beyond the null terminator, allowing an authenticated user who can submit SQL queries to crash the server and possibly leak adjacent memory. This issue is fixed in version 3.4.1.14.

CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
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CVE-2026-49854

Tornado: Out-of-bounds memory access in C extension

Tornado is a Python web framework and asynchronous networking library. Prior to 6.5.6, the optional native extension tornado.speedups implemented websocket_mask without validating that the mask argument is exactly four bytes, allowing the C function to read up to three bytes beyond the provided buffer when reached through Tornado XSRF token decoding with the native extension active. This issue is fixed in version 6.5.6.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
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CVE-2026-55036

Microsoft Excel Remote Code Execution Vulnerability

Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
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CVE-2026-57968

Windows Subsystem for Linux (WSL2) Kernel Elevation of Privilege Vulnerability

Buffer over-read in Windows Subsystem for Linux allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
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CVE-2026-53877

Heap buffer over-read in GDALRaster

An issue was discovered in Django 6.0 before 6.0.7 and 5.2 before 5.2.16. `django.contrib.gis.gdal.GDALRaster` over-reads its in-memory buffer when constructed from a bytes object, which can disclose adjacent memory or cause service degradation via a potential segmentation fault when the `vsi_buffer` property is accessed. Earlier, unsupported Django series (such as 5.0.x, 4.1.x, and 3.2.x) were not evaluated and may also be affected. Django would like to thank Bence Nagy for reporting this issue.

CVSS 4.0 · 6.3 Medium EPSS < 1% KEV · Not listed
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