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CVE-2026-92449

Binary resource loader: unbounded map_id from a theme file causes a heap out-of-bounds write in the GUIX-allocated arena

`_gx_binres_pixelmap_table_load()` in the GUIX binary resource (theme) loader indexes the pixelmap table with a value read verbatim from the resource file and never bounds it against the table size. A crafted theme drives a write of up to roughly 256 KB past the end of the table. The overflowed buffer is allocated by GUIX itself, through `_gx_system_memory_allocator`, rather than supplied by the caller, so the loader corrupts its own arena. The public API `gx_binres_theme_load()` takes no size parameter, so no amount of caller diligence prevents this. Reproduces in the shipped default configuration; `GX_BINARY_RESOURCE_SUPPORT` is enabled by default.

CVSS 4.0 · 6.8 Medium EPSS < 1% KEV · Not listed
Vendors
Eclipse
Products
Threadx Guix
CVE-2026-92446

GUIX binary resource loader reads past the end of a resource, because no length for it ever reaches the loader

`gx_binres_theme_load()` and `gx_binres_font_load()` take the resource as a bare `GX_UBYTE *` with no length, and `GX_BINRES_DATA_INFO` has no field to carry one. Every read is therefore performed at an offset the file itself chose, against a buffer whose extent the loader does not know. A resource that declares more data than it contains is read past its end, and an offset stored in the file is turned into a pointer without being bounded. This is a distinct defect from GHSA-hgcj-22cg-4hfv, which was an underflowed glyph count. It needs no underflow and no wrapped multiply: a perfectly well-formed, narrow glyph range reaches it.

CVSS 4.0 · 6.8 Medium EPSS < 1% KEV · Not listed
Vendors
Eclipse
Products
Threadx Guix
CVE-2026-91059

JPEG decoder: a duplicate SOF0 after SOS publishes a pixelmap that misreports its own allocation size

The GUIX JPEG software decoder enforces no ordering on JPEG markers. A file that places a second `SOF0` frame header after `SOS` re-runs the frame header parser after the output buffer has already been allocated and its geometry latched. The decoder returns `GX_SUCCESS` and publishes a `GX_PIXELMAP` whose reported dimensions and `data_size` exceed the allocation behind it. Any consumer that trusts the returned structure reads out of bounds, including GUIX's own display drivers, reached through the ordinary draw path. Reproduces in the shipped default configuration; `GX_SOFTWARE_DECODER_SUPPORT` is enabled by default.

CVSS 4.0 · 6.8 Medium EPSS < 1% KEV · Not listed
Vendors
Eclipse
Products
Threadx Guix
CVE-2026-92454

JPEG decoder: truncated segments are read past the image buffer, and a zero sampling factor hangs the decode

The GUIX software JPEG decoder reads four kinds of marker segment without checking that each is long enough to hold what it reads. A truncated segment is therefore read past the end of the caller's image buffer. Separately, a zero chroma sampling factor makes the block decode loop non-terminating. Both reproduce in the default configuration, in which `GX_SOFTWARE_DECODER_SUPPORT` is enabled.

CVSS 4.0 · 6.8 Medium EPSS < 1% KEV · Not listed
Vendors
Eclipse
Products
Threadx Guix
CVE-2026-91057

Out-of-bounds read when a multi-line text view string ends with a carriage return

`_gx_multi_line_text_view_display_info_get()` reads one byte past the end of the application's text buffer when the string it is given ends with a carriage return (`\r`). The over-read can also cause callers to advance their index past the end of the string, producing a second over-read in `_gx_multi_line_text_view_string_total_rows_compute()` and a row of text that is not in the source.

CVSS 4.0 · 4.6 Medium EPSS < 1% KEV · Not listed
Vendors
Eclipse
Products
Threadx Guix
CVE-2026-83857

Windows Universal Disk Format File System Driver (UDFS) Elevation of Privilege Vulnerability

Use after free in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Microsoft
Products
Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 25 more
CVE-2026-93888

IBM Sterling Connect:Direct for Unix Buffer Overflow

IBM Sterling Connect Direct for Unix 6.4.0.0 through 6.4.0.6 and 6.3.0.0 through 6.3.0.7 apnotify utility is vulnerable to a code injection due to insufficient validation of user input.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Ibm
Products
Sterling Connect Direct
CVE-2026-114045

FreeRDP before 3.32.1 Heap Buffer Overflow via rdpsnd_server_select_format

FreeRDP before 3.32.1 contains a heap-based buffer overflow in the server-side rdpsnd channel because an integer wraparound in rdpsnd_server_select_format() DVI_ADPCM block-alignment arithmetic bypasses validation. A malicious RDP client can send two SNDC_FORMATS PDUs with an nBlockAlign too small for nChannels, causing an unbounded heap write during server audio playback, potentially enabling code execution.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Vendors
Freerdp
Products
Freerdp
CVE-2026-95507

libslirp: libslirp: out-of-bounds read in NC-SI OEM response handler discloses host memory to guest

An out-of-bounds read was found in the NC-SI OEM response handler of libslirp. A truncated NC-SI OEM Ethernet frame causes ncsi_rsp_handler_oem() to read up to 4 bytes beyond the supplied packet length and reflect the value into the response sent to the guest, resulting in guest-observable disclosure of adjacent host process memory.

CVSS 3.1 · 4.3 Medium EPSS n/a KEV · Not listed
Vendors
Libslirp Project
Products
Libslirp
CVE-2026-8093

Memory safety bugs fixed in Thunderbird 150.0.2

Memory safety bugs present in Thunderbird 150.0.1. 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 150.0.2 and Thunderbird 150.0.2.

CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed
Vendors
Mozilla
Products
Firefox Thunderbird
CVE-2026-12314

Memory safety bug fixed in Thunderbird 152

Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Mozilla
Products
Firefox Thunderbird
CVE-2026-12310

Memory safety bug fixed in Thunderbird 152

Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Mozilla
Products
Firefox Thunderbird
CVE-2026-12298

Memory safety bug fixed in Thunderbird 152

Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.

CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
Vendors
Mozilla
Products
Firefox Thunderbird
CVE-2026-16360

Memory safety bugs fixed in Thunderbird ESR 140.13 and Thunderbird 153

Memory safety bugs present in Thunderbird ESR 140.12 and Thunderbird 152. 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 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.

CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
Vendors
Mozilla
Products
Firefox Thunderbird
CVE-2026-8092

Memory safety bugs fixed in Thunderbird ESR 140.10.2 and Thunderbird 150.0.2

Memory safety bugs present in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1. 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 150.0.2, Firefox ESR 140.10.2, Firefox ESR 115.35.2, Thunderbird 150.0.2, and Thunderbird 140.10.2.

CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed
Vendors
Mozilla
Products
Firefox Thunderbird