| CVE |
Vendors |
Products |
Updated |
CVSS v3.1 |
| As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco networking engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities.
The vulnerabilities tracked by this CVE-2026-76464 are related to buffer management issues that are grouped under the Common Weakness Enumeration (CWE) CWE-119. |
| In the Linux kernel, the following vulnerability has been resolved:
mm/hugetlb: preserve mremap address delta when skipping page tables
move_hugetlb_page_tables() optimizes mremap() by advancing to the last
entry in the page table when the source page table does not exist, either
initially or after unsharing a PMD table. The common loop increment then
steps to the first entry in the next page table.
However, the code advances both the source and destination addresses to
the last entries in their respective page tables, which is wrong. The
destination address must be advanced only by the same amount as the source
address.
If the source and destination offsets within their page tables differ, the
destination address can be advanced too far, causing follow-up issues.
Fix this by advancing the destination address by the source advance
distance.
With a reproducer, we were able to trigger a kernel panic on x86-64. With
this fix in place, we can no longer reproduce the issue. |
| In multiple functions of PduParser.java, there is a possible persistent denial of service due to a missing bounds check. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation. |
| In returnOutputBufferLocked of DeprecatedCamera3StreamSplitter.cpp, there is a possible out-of-bounds read due to a missing bounds check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation. |
| In multiple functions of MessageQueueBase.h, there is a possible out of bounds read due to an incorrect bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. |
| In multiple functions of PduParser.java, there is a possible out of bounds read due to a missing bounds check. This could lead to a remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation. |
| In multiple locations, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. |
| A heap-based buffer overflow was found in GIMP’s GIF export plug-in. Exporting an image with very large width and height can cause 32-bit overflow when computing the pixel buffer size. The plug-in allocates a buffer based on the wrapped value while GEGL writes using the true image extent, rooted in integer overflow |
| In stpropnci_process of stpropnci.cc, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. |
| A flaw has been found in XnView Classic 2.52.5. Impacted is an unknown function of the component FLI File Parser. This manipulation of the argument starting_line causes heap-based buffer overflow. Remote exploitation of the attack is possible. Upgrading to version 2.52.6 is recommended to address this issue. Upgrading the affected component is advised. |
| In multiple functions of rw_t5t.cc, there is a possible out-of-bounds read due to a missing bounds check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation. |
| In multiple functions of nfa_nfcee_act.cc, there is a possible out-of-bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. |
| In the Linux kernel, the following vulnerability has been resolved:
RDMA/siw: Bound fragmented header copies by the remaining length
siw_get_hdr() can receive an extended DDP/RDMAP header across more than
one TCP callback. The first callback may receive most of the header,
while the next one still limits the copy to hdrlen - MIN_DDP_HDR instead
of the number of missing bytes. This makes the destination move past the
end of the header and overwrite the receive state, including
fpdu_part_rcvd. A later callback can then use a negative fpdu_part_rcvd
value as a copy offset, which creates an OOB write.
Use the number of header bytes already received when calculating the
next copy length. |
| In the Linux kernel, the following vulnerability has been resolved:
wifi: mwifiex: prevent authentication frame length truncation
mwifiex_cfg80211_authenticate() derives the authentication frame length
from req->ie_len and req->auth_data_len, both of type size_t, but stores
it in a u16.
NL80211_ATTR_AUTH_DATA only has a minimum length policy. Since nla_len is
a u16, a single attribute can carry up to 65531 bytes of payload, so the
sum can exceed U16_MAX before it is assigned to pkt_len. The truncated
pkt_len determines the skb frame area, while the copy length remains
req->auth_data_len - 4, resulting in a heap buffer overflow.
For example, with auth_data_len equal to 65510 and no IEs, the sum is
65546. It is truncated to 10 and then reduced by four to 6. The driver
appends only six bytes to the skb with skb_put(), but then copies 65506
user-provided bytes into the authentication body.
Reaching this path requires CAP_NET_ADMIN in the user namespace owning
the network namespace, an up station netdev, and a suitable BSS/SAE
authentication request.
Compute the length in size_t, reject values that cannot be represented by
the firmware's u16 frame length field, and only then assign it to pkt_len. |
| In the Linux kernel, the following vulnerability has been resolved:
wifi: libertas_tf: fix UAF in lbtf_free_adapter()
lbtf_free_adapter() calls lbtf_free_cmd_buffer() to free the command
buffers before calling timer_delete_sync() to wait for the command
timer callback. If the timer callback (command_timer_fn) is already
running when lbtf_free_cmd_buffer() frees the command array, the
callback dereferences priv->cur_cmd->cmdbuf which points to freed
memory.
Swap the order so that timer_delete_sync() runs first, ensuring any
in-flight callback has completed before the command buffers are freed. |
| In wacom_hid_set_device_mode of wacom_sys.c, there is a possible out-of-bounds write due to a missing bounds check. This could lead to physical escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. |
| In the Linux kernel, the following vulnerability has been resolved:
Input: cyttsp5 - clamp the HID report size before memcpy
The size field comes from the device and is used as the memcpy()
length into response_buf, which is CY_MAX_INPUT bytes. |
| In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: btintel_pcie: validate TX skb length in send_sync
btintel_pcie_prepare_tx() copies skb->len bytes into a fixed
BTINTEL_PCIE_BUFFER_SIZE (4096) DMA slot via an unchecked memcpy.
Oversized packets are currently rejected only in
btintel_pcie_send_frame(); any future caller of
btintel_pcie_send_sync() would silently overflow the DMA buffer.
Add the bounds check in btintel_pcie_send_sync() itself, right
before skb_push() and the DMA copy. |
| A buffer overflow vulnerability exists in the OnGuard agent of ClearPass Policy Manager. Successful exploitation could allow an authenticated local user to execute arbitrary code with elevated privileges on the affected host or to disrupt the availability of the affected service. |
| A heap-based buffer overflow was found in GIMP’s DirectDraw Surface (DDS) loader. When loading a crafted DDS image, buffer sizes derived from width, height, and pitch can be computed using 32-bit arithmetic that overflows. The allocated buffer is too small for the amount of pixel data written through GEGL (CWE-787), following integer overflow in size calculations (CWE-190). This may allow heap corruption and, in the worst case, arbitrary code execution in the context of the GIMP process. |
