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CVE-2026-31470 High · 7.1 CWE-787 Apr 22, 2026
virt: tdx-guest: Fix handling of host controlled 'quote' buffer length
In the Linux kernel, the following vulnerability has been resolved: virt: tdx-guest: Fix handling of host controlled 'quote' buffer length Validate host controlled value `quote_buf->out_len` that determines how many bytes of the quote are copied out to guest userspace. In TDX environments with remote attestation, quotes are not considered private, and can be forwarded to an attestation server. Catch scenarios where the host specifies a response length larger than the guest's allocation, or otherwise races modifying the response while the guest consumes it. This prevents contents beyond the pages allocated for `quote_buf` (up to TSM_REPORT_OUTBLOB_MAX) from being read out to guest userspace, and possibly forwarded in attestation requests. Recall that some deployments want per-container configs-tsm-report interfaces, so the leak may cross container protection boundaries, not just local root.
CVE-2026-31452 High · 7.8 CWE-787 Apr 22, 2026
ext4: convert inline data to extents when truncate exceeds inline size
In the Linux kernel, the following vulnerability has been resolved: ext4: convert inline data to extents when truncate exceeds inline size Add a check in ext4_setattr() to convert files from inline data storage to extent-based storage when truncate() grows the file size beyond the inline capacity. This prevents the filesystem from entering an inconsistent state where the inline data flag is set but the file size exceeds what can be stored inline. Without this fix, the following sequence causes a kernel BUG_ON(): 1. Mount filesystem with inode that has inline flag set and small size 2. truncate(file, 50MB) - grows size but inline flag remains set 3. sendfile() attempts to write data 4. ext4_write_inline_data() hits BUG_ON(write_size > inline_capacity) The crash occurs because ext4_write_inline_data() expects inline storage to accommodate the write, but the actual inline capacity (~60 bytes for i_block + ~96 bytes for xattrs) is far smaller than the file size and write request. The fix checks if the new size from setattr exceeds the inode's actual inline capacity (EXT4_I(inode)->i_inline_size) and converts the file to extent-based storage before proceeding with the size change. This addresses the root cause by ensuring the inline data flag and file size remain consistent during truncate operations.
CVE-2026-31432 High · 8.8 CWE-787 Apr 22, 2026
ksmbd: fix OOB write in QUERY_INFO for compound requests
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix OOB write in QUERY_INFO for compound requests When a compound request such as READ + QUERY_INFO(Security) is received, and the first command (READ) consumes most of the response buffer, ksmbd could write beyond the allocated buffer while building a security descriptor. The root cause was that smb2_get_info_sec() checked buffer space using ppntsd_size from xattr, while build_sec_desc() often synthesized a significantly larger descriptor from POSIX ACLs. This patch introduces smb_acl_sec_desc_scratch_len() to accurately compute the final descriptor size beforehand, performs proper buffer checking with smb2_calc_max_out_buf_len(), and uses exact-sized allocation + iov pinning.
CVE-2026-3298 High · 8.8 CWE-787 Apr 21, 2026
Out-of-bounds write in Windows asyncio.ProacterEventLoop.sock_recvfrom_into() when using nbytes
The method "sock_recvfrom_into()" of "asyncio.ProacterEventLoop" (Windows only) was missing a boundary check for the data buffer when using nbytes parameter. This allowed for an out-of-bounds buffer write if data was larger than the buffer size. Non-Windows platforms are not affected.
CVE-2026-5450 Critical · 9.8 CWE-787 Apr 20, 2026
scanf %mc off-by-one heap buffer overflow
Calling the scanf family of functions with a %mc (malloc'd character match) in the GNU C Library version 2.7 to version 2.43 with a format width specifier with an explicit width greater than 1024 could result in a one byte heap buffer overflow.
CVE-2026-40494 Critical · 9.8 CWE-787 Apr 18, 2026
SAIL TGA Decoder Out-of-Bounds Write
SAIL is a cross-platform library for loading and saving images with support for animation, metadata, and ICC profiles. Prior to commit 45d48d1f2e8e0d73e80bc1fd5310cb57f4547302, the TGA codec's RLE decoder in `tga.c` has an asymmetric bounds check vulnerability. The run-packet path (line 297) correctly clamps the repeat count to the remaining buffer space, but the raw-packet path (line 305-311) has no equivalent bounds check. This allows writing up to 496 bytes of attacker-controlled data past the end of a heap buffer. Commit 45d48d1f2e8e0d73e80bc1fd5310cb57f4547302 patches the issue.
CVE-2026-40493 Critical · 9.8 CWE-787 Apr 18, 2026
SAIL has heap buffer overflow in PSD decoder — bpp mismatch in LAB 16-bit mode
SAIL is a cross-platform library for loading and saving images with support for animation, metadata, and ICC profiles. Prior to commit c930284445ea3ff94451ccd7a57c999eca3bc979, the PSD codec computes bytes-per-pixel (`bpp`) from raw header fields `channels * depth`, but the pixel buffer is allocated based on the resolved pixel format. For LAB mode with `channels=3, depth=16`, `bpp = (3*16+7)/8 = 6`, but the format `BPP40_CIE_LAB` allocates only 5 bytes per pixel. Every pixel write overshoots, causing a deterministic heap buffer overflow on every row. Commit c930284445ea3ff94451ccd7a57c999eca3bc979 contains a patch.
CVE-2026-40492 Critical · 9.8 CWE-787 Apr 18, 2026
SAIL XWD Codec Out-of-Bounds Write (CVE-2026-40492)
SAIL is a cross-platform library for loading and saving images with support for animation, metadata, and ICC profiles. Prior to commit 36aa5c7ec8a2bb35f6fb867a1177a6f141156b02, the XWD codec resolves pixel format based on `pixmap_depth` but the byte-swap code uses `bits_per_pixel` independently. When `pixmap_depth=8` (BPP8_INDEXED, 1 byte/pixel buffer) but `bits_per_pixel=32`, the byte-swap loop accesses memory as `uint32_t*`, reading/writing 4x the allocated buffer size. This is a different vulnerability from the previously reported GHSA-3g38-x2pj-mv55 (CVE-2026-27168), which addressed `bytes_per_line` validation. Commit 36aa5c7ec8a2bb35f6fb867a1177a6f141156b02 contains a patch.
CVE-2026-6507 High · 7.5 CWE-787 Apr 17, 2026
Dnsmasq: dnsmasq: denial of service due to out-of-bounds write in dhcp bootreply processing
A flaw was found in dnsmasq. A remote attacker could exploit an out-of-bounds write vulnerability by sending a specially crafted BOOTREPLY (Bootstrap Protocol Reply) packet to a dnsmasq server configured with the `--dhcp-split-relay` option. This can lead to memory corruption, causing the dnsmasq daemon to crash and resulting in a denial of service (DoS).
CVE-2026-6314 High · 8.3 CWE-787 Apr 15, 2026
Out of bounds write in GPU in Google Chrome prior to 147.0.7727.101 allowed a remote attacker who...
Out of bounds write in GPU in Google Chrome prior to 147.0.7727.101 allowed a remote attacker who had compromised the GPU process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)
CVE-2026-40919 Medium · 5.5 CWE-787 Apr 15, 2026
Gimp: gimp: denial of service via specially crafted seattle filmworks file
A flaw was found in GIMP. This vulnerability, a buffer overflow in the `file-seattle-filmworks` plugin, can be exploited when a user opens a specially crafted Seattle Filmworks file. A remote attacker could leverage this to cause a denial of service (DoS), leading to the plugin crashing and potentially impacting the stability of the GIMP application.
CVE-2026-40916 Medium · 5.5 CWE-787 Apr 15, 2026
Gimp: gimp: denial of service due to stack buffer overflow in tim image loader
A flaw was found in GIMP. A stack buffer overflow vulnerability in the TIM image loader's 4BPP decoding path allows a local user to cause a Denial of Service (DoS). By opening a specially crafted TIM image file, the application crashes due to an unconditional overflow when writing to a variable-length array.
CVE-2026-40688 High · 7.2 CWE-787 Apr 14, 2026
Out-of-bounds Write in Fortinet Fortiweb
An out-of-bounds write vulnerability [CWE-787] vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.3, FortiWeb 7.6.0 through 7.6.6, FortiWeb 7.4.0 through 7.4.11 may allow a remote privileged attacker to execute arbitrary code or command via crafted HTTP requests.
CVE-2026-27295 High · 7.8 CWE-787 Apr 14, 2026
Adobe Framemaker | Out-of-bounds Write (CWE-787)
Adobe Framemaker versions 2022.8 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
CVE-2026-34631 High · 7.8 CWE-787 Apr 14, 2026
InCopy | Out-of-bounds Write (CWE-787)
InCopy versions 20.5.2, 21.2 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
CVE-2026-34618 High · 7.8 CWE-787 Apr 14, 2026
Illustrator | Out-of-bounds Write (CWE-787)
Illustrator versions 30.2, 29.8.5 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
CVE-2026-27291 High · 7.8 CWE-787 Apr 14, 2026
InDesign Desktop | Out-of-bounds Write (CWE-787)
InDesign Desktop versions 20.5.2, 21.2 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
CVE-2026-34863 Medium · 5.5 CWE-787 Apr 13, 2026
Out-of-bounds write vulnerability in the file system. Impact: Successful exploitation of this...
Out-of-bounds write vulnerability in the file system. Impact: Successful exploitation of this vulnerability may affect availability.
CVE-2026-25207 Critical · 9.8 CWE-787 Apr 13, 2026
Samsung Open Source Escargot Out-of-Bounds Write (CVE-2026-25207)
Out-of-bounds write vulnerability in Samsung Open Source Escargot allows Overflow Buffers.This issue affects Escargot: 97e8115ab1110bc502b4b5e4a0c689a71520d335.
CVE-2026-40393 Critical · 9.8 CWE-787 Apr 12, 2026
Mesa WebGPU out-of-bounds memory access
In Mesa before 25.3.6 and 26 before 26.0.1, out-of-bounds memory access can occur in WebGPU because the amount of to-be-allocated data depends on an untrusted party, and is then used for alloca.
CVE-2019-25712 Medium · 5.5 CWE-787 Apr 12, 2026
BlueAuditor 1.7.2.0 Buffer Overflow Denial of Service via Registration Key
BlueAuditor 1.7.2.0 contains a buffer overflow vulnerability in the registration key field that allows local attackers to crash the application by submitting an oversized key value. Attackers can trigger a denial of service by entering a 256-byte buffer of repeated characters in the Key registration field, causing the application to crash during registration processing.
CVE-2019-25705 High · 7.8 CWE-787 Apr 12, 2026
Echo Mirage 3.1 Stack Buffer Overflow via Rules Action Field
Echo Mirage 3.1 contains a stack buffer overflow vulnerability that allows local attackers to crash the application or execute arbitrary code by supplying an oversized string in the Rules action field. Attackers can create a malicious text file with a crafted payload exceeding buffer boundaries and paste it into the action field through the Rules dialog to trigger the overflow and overwrite the return address.
CVE-2019-25701 High · 7.8 CWE-787 Apr 12, 2026
Easy Video to iPod Converter 1.6.20 Local Buffer Overflow SEH
Easy Video to iPod Converter 1.6.20 contains a local buffer overflow vulnerability in the user registration field that allows local attackers to overwrite the structured exception handler. Attackers can input a crafted payload exceeding 996 bytes in the username field to trigger SEH overwrite and execute arbitrary code with user privileges.
CVE-2019-25695 High · 8.4 CWE-787 Apr 12, 2026
R 3.4.4 Local Buffer Overflow Windows XP SP3
R 3.4.4 contains a local buffer overflow vulnerability that allows attackers to execute arbitrary code by injecting malicious input into the GUI Preferences language field. Attackers can craft a payload with a 292-byte offset and JMP ESP instruction to execute commands like calc.exe when the payload is pasted into the Language for menus and messages field.
CVE-2019-25691 High · 8.4 CWE-787 Apr 12, 2026
Faleemi Desktop Software 1.8 Local Buffer Overflow SEH DEP Bypass
Faleemi Desktop Software 1.8 contains a local buffer overflow vulnerability in the System Setup dialog that allows attackers to bypass DEP protections through structured exception handling exploitation. Attackers can inject a crafted payload into the Save Path for Snapshot and Record file field to trigger a buffer overflow and execute arbitrary code via ROP chain gadgets.