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🚨 CVE-2026-62423
[This CNA information record relates to multiple CVEs; the
text explains which aspects/vulnerabilities correspond to which CVE.]

The directory and Rock Ridge / SUSP walk in libfsimage's iso9660 driver
derives several lengths directly from attacker-controlled on-disk fields
without validating them:

* The directory loop itself assumes a good record length. This is
CVE-2026-42494.

* The calculation of the System Use area may underflow. This is
CVE-2026-42495.

* The Rock Ridge extension loop assumes a good (inner) record length.
This is CVE-2026-62423.

* The Rock Ridge NM record processing assumes a good entry length.
This is CVE-2026-62424.

* The Rock Ridge CE record processing assumes a good size and offset.
This is CVE-2026-62425.

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🚨 CVE-2026-62424
[This CNA information record relates to multiple CVEs; the
text explains which aspects/vulnerabilities correspond to which CVE.]

The directory and Rock Ridge / SUSP walk in libfsimage's iso9660 driver
derives several lengths directly from attacker-controlled on-disk fields
without validating them:

* The directory loop itself assumes a good record length. This is
CVE-2026-42494.

* The calculation of the System Use area may underflow. This is
CVE-2026-42495.

* The Rock Ridge extension loop assumes a good (inner) record length.
This is CVE-2026-62423.

* The Rock Ridge NM record processing assumes a good entry length.
This is CVE-2026-62424.

* The Rock Ridge CE record processing assumes a good size and offset.
This is CVE-2026-62425.

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🚨 CVE-2026-62425
[This CNA information record relates to multiple CVEs; the
text explains which aspects/vulnerabilities correspond to which CVE.]

The directory and Rock Ridge / SUSP walk in libfsimage's iso9660 driver
derives several lengths directly from attacker-controlled on-disk fields
without validating them:

* The directory loop itself assumes a good record length. This is
CVE-2026-42494.

* The calculation of the System Use area may underflow. This is
CVE-2026-42495.

* The Rock Ridge extension loop assumes a good (inner) record length.
This is CVE-2026-62423.

* The Rock Ridge NM record processing assumes a good entry length.
This is CVE-2026-62424.

* The Rock Ridge CE record processing assumes a good size and offset.
This is CVE-2026-62425.

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🚨 CVE-2026-62426
[This CNA information record relates to multiple CVEs; the
text explains which aspects/vulnerabilities correspond to which CVE.]

To manage the system, sysctl and platform operations are used by the
control domain or a possible Xenstore domain. Some of these operations
may not be executed in parallel, so a system-wide lock each is used.
The way those locks are acquired is, however, not providing any fairness.
Furthermore, with XSM/Flask in use, the lock acquire will, for some
operations, occur ahead of any permission checking.

The sysctl issue is CVE-2026-62426.

The platform-op issue is CVE-2026-62427.

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1
🚨 CVE-2026-62427
[This CNA information record relates to multiple CVEs; the
text explains which aspects/vulnerabilities correspond to which CVE.]

To manage the system, sysctl and platform operations are used by the
control domain or a possible Xenstore domain. Some of these operations
may not be executed in parallel, so a system-wide lock each is used.
The way those locks are acquired is, however, not providing any fairness.
Furthermore, with XSM/Flask in use, the lock acquire will, for some
operations, occur ahead of any permission checking.

The sysctl issue is CVE-2026-62426.

The platform-op issue is CVE-2026-62427.

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1
🚨 CVE-2026-62429
Accessing the vNUMA configuration data of a guest is still possible when
domain destruction has already started. The cleaning up of that
configuration information is not synchronized with its retrieval by a
device model controlling the guest.

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🚨 CVE-2026-62430
Accesses to the CMOS memory contents are done using an indirect IO port
pair. Therefore Xen needs to cache the guest chosen index, and one of
the usages of the index didn't take the necessary locking to avoid
concurrent changes. As a result, a guest could change the index after
it being checked, causing a subsequent out-of-bound read access to the
contents of an array.

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🚨 CVE-2026-62431
The logic to handle periodic Viridian STIMERs performs a division with an
unchecked user-controlled divisor value, that can be set to zero to cause a #DE
fault.

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🚨 CVE-2026-62432
The EVTCHNOP_expand_array hypercall checks for whether FIFO event
channels are enabled, but without holding the correct lock. It can race
with EVTCHNOP_reset, resulting in dereferencing a NULL pointer.

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🚨 CVE-2026-62433
Parts of the DM_OP handling code assumes the caller has provided the
required number of buffers for the given operation without any checking
being done. As a result, certain operations might access stack
rubble as structures are possibly uninitialized.

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🚨 CVE-2026-62434
A guest started with Populated on Demand enabled (PoD) can attempt to
reclaim pages which aren't regular guest RAM. This can cause corruption
of memory management state in Xen.

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1
🚨 CVE-2026-62435
[This CNA information record relates to multiple CVEs; the
text explains which aspects/vulnerabilities correspond to which CVE.]

With the introduction of Grant Table v2 came the requirement to be able to
switch between versions. Switching from v1 to v2 reduces the number of
valid grant references, as a bigger shared entry structure is then needed
while the shared table doesn't change size. Switching from v2 back to v1
the status frames, which are separate in v2, go away.

Code holding, but intermediately dropping and then re-acquiring the grant
table lock, sometimes wrongly assumes that said properties wouldn't change
across the window in time where the lock is not being held.

The v1 -> v2 issue is CVE-2026-62435.

The v2 -> v1 issue is CVE-2026-62436.

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1
🚨 CVE-2026-62436
[This CNA information record relates to multiple CVEs; the
text explains which aspects/vulnerabilities correspond to which CVE.]

With the introduction of Grant Table v2 came the requirement to be able to
switch between versions. Switching from v1 to v2 reduces the number of
valid grant references, as a bigger shared entry structure is then needed
while the shared table doesn't change size. Switching from v2 back to v1
the status frames, which are separate in v2, go away.

Code holding, but intermediately dropping and then re-acquiring the grant
table lock, sometimes wrongly assumes that said properties wouldn't change
across the window in time where the lock is not being held.

The v1 -> v2 issue is CVE-2026-62435.

The v2 -> v1 issue is CVE-2026-62436.

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🚨 CVE-2026-7187
Missing authentication for critical function vulnerability in Universal Software Inc. UKBS allows Accessing Functionality Not Properly Constrained by ACLs.

This issue affects UKBS: through 28072026.
NOTE: The vendor was contacted and it was learned that the product is not supported.

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🚨 CVE-2026-63727
Anchore Enterprise versions from 5.11.0 to 5.27.1 and 6.0.0 contain an improper privilege escalation vulnerability in the user management API. An authenticated attacker who is able to access the Anchore Enterprise API could issue an API call capable of modifying user permissions to gain access to additional resources and operations. It is not possible to grant the system-admin role, but a read only user could be granted write access. This issue is fixed in Anchore Enterprise 5.27.2 and 6.0.1.

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1
🚨 CVE-2026-8164
Uncontrolled Search Path Element vulnerability in ArkSigner Software and Hardware Industry and Trade Inc. ArkSigner Desktop Client allows Search Order Hijacking.

This issue affects ArkSigner Desktop Client: from v2.2.16.10 through 17062026.

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🚨 CVE-2023-4244
A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation.



Due to a race condition between nf_tables netlink control plane transaction and nft_set element garbage collection, it is possible to underflow the reference counter causing a use-after-free vulnerability.



We recommend upgrading past commit 3e91b0ebd994635df2346353322ac51ce84ce6d8.

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🚨 CVE-2024-21538
Versions of the package cross-spawn before 6.0.6, from 7.0.0 and before 7.0.5 are vulnerable to Regular Expression Denial of Service (ReDoS) due to improper input sanitization. An attacker can increase the CPU usage and crash the program by crafting a very large and well crafted string.

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🚨 CVE-2026-4258
Versions of the package sjcl before 1.0.9 are vulnerable to Improper Verification of Cryptographic Signature due to missing point-on-curve validation in sjcl.ecc.basicKey.publicKey(). An attacker can recover a victim's ECDH private key by sending crafted off-curve public keys and observing ECDH outputs. The dhJavaEc() function directly returns the raw x-coordinate of the scalar multiplication result (no hashing), providing a plaintext oracle without requiring any decryption feedback.

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🚨 CVE-2026-52718
A denial of service vulnerability was found in GStreamer's AV1 codec parser in gst-plugins-bad. The gst_av1_parser_parse_tile_list_obu() function passes a byte count to a bit-reader API that expects a bit count, causing parser desynchronization. A remote attacker could trick a user into opening a specially crafted AV1 media file, triggering an assertion abort and causing the application to crash.

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🚨 CVE-2026-52720
A heap buffer overflow vulnerability was found in GStreamer's librfb (RFB/VNC client). The rectangle bounds check incorrectly validates area rather than individual dimensions, allowing a malicious VNC server to send a rectangle that extends beyond the framebuffer. A remote attacker could set up a malicious VNC server and trick a user into connecting, resulting in an out-of-bounds heap write that could lead to code execution or a crash.

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