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CVE-2026-42934

NGINX ngx_http_charset_module vulnerability

NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_charset_module module. When charset, source_charset, and charset_map and proxy_pass with disabled buffering ("off") directives are configured, unauthenticated attackers can send requests that with conditions beyond the attackers' control to cause a heap buffer over-read in the NGINX worker process, leading to limited disclosure of memory or a restart.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CVSS 4.0 · 6.3 Medium EPSS < 1% KEV · Not listed
Vendors
F5
Products
Dos Nginx Gateway Fabric Nginx Ingress Controller and 4 more
CVE-2025-47403

Buffer Over-read in WLAN Firmware

Transient DOS when processing a malformed Fast Transition response frame with an invalid header structure during wireless roaming.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Qualcomm
Products
Ar8035 Ar8035 Firmware Cologne and 512 more
CVE-2026-34059

Apache HTTP Server: mod_proxy_ajp: Heap Over-Read and memory disclosure in ajp_parse_data()

Buffer Over-read vulnerability in Apache HTTP Server. This issue affects Apache HTTP Server: through 2.4.66. Users are recommended to upgrade to version 2.4.67, which fixes the issue.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Apache
Products
Http Server
CVE-2026-6532

Buffer Over-read in Wireshark

Kismet protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Wireshark
Products
Wireshark
CVE-2026-5772

MatchDomainName 1-Byte Stack Buffer Over-Read in Hostname Validation

A 1-byte stack buffer over-read was identified in the MatchDomainName function (src/internal.c) during wildcard hostname validation when the LEFT_MOST_WILDCARD_ONLY flag is active. If a wildcard * exhausts the entire hostname string, the function reads one byte past the buffer without a bounds check, which could cause a crash.

CVSS 4.0 · 2.1 Low EPSS < 1% KEV · Not listed
Vendors
Wolfssl
Products
Wolfssl
CVE-2026-41898

rust-openssl: Unchecked callback-returned length in PSK and cookie generate trampolines can cause OpenSSL to leak adjacent memory to the network peer

rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.24 to before 0.10.78, the FFI trampolines behind SslContextBuilder::set_psk_client_callback, set_psk_server_callback, set_cookie_generate_cb, and set_stateless_cookie_generate_cb forwarded the user closure's returned usize directly to OpenSSL without checking it against the &mut [u8] that was handed to the closure. This can lead to buffer overflows and other unintended consequences. This vulnerability is fixed in 0.10.78.

CVSS 4.0 · 8.3 High EPSS < 1% KEV · Not listed
Vendors
Rust-openssl Project
Products
Rust-openssl
CVE-2026-0930

Potential wolfSSHd Buffer out-of-bounds Read on Windows Handling Terminal Resize

Potential read out of bounds case with wolfSSHd on Windows while handling a terminal resize request. An authenticated user could trigger the out of bounds read after establishing a connection which would leak the adjacent stack memory to the pseudo-console output.

CVSS 4.0 · 2.3 Low EPSS < 1% KEV · Not listed
Vendors
Wolfssh Wolfssl
Products
Wolfssh Wolfssh
CVE-2026-40341

libgphoto2 has an OOB Read in ptp_unpack_EOS_FocusInfoEx

libgphoto2 is a camera access and control library. In versions up to and including 2.5.33, an out of bound read in ptp_unpack_EOS_FocusInfoEx could be used to crash libgphoto2 when processing input from untrusted USB devices. Commit c385b34af260595dfbb5f9329526be5158985987 contains a patch. No known workarounds are available.

CVSS 3.1 · 3.5 Low EPSS < 1% KEV · Not listed
Vendors
Gphoto
Products
Libgphoto2
CVE-2025-1937

Memory safety bugs fixed in Firefox 136, Thunderbird 136, Firefox ESR 115.21, Firefox ESR 128.8, and Thunderbird 128.8

Memory safety bugs present in Firefox 135, Thunderbird 135, Firefox ESR 115.20, Firefox ESR 128.7, and Thunderbird 128.7. 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 136, Firefox ESR 115.21, Firefox ESR 128.8, Thunderbird 136, and Thunderbird 128.8.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Mozilla Redhat
Products
Firefox Thunderbird Enterprise Linux and 5 more
CVE-2025-62473

Windows Routing and Remote Access Service (RRAS) Information Disclosure Vulnerability

Buffer over-read in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to disclose information over a network.

CVSS 3.1 · 6.5 Medium EPSS 1.2% KEV · Not listed
Vendors
Microsoft
Products
Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 20 more