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CVE-2025-20135

Cisco Adaptive Security Appliance and Firepower Threat Defense Software DHCP Denial of Service Vulnerability

A vulnerability in the DHCP client functionality of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, adjacent attacker to exhaust available memory. This vulnerability is due to improper validation of incoming DHCP packets. An attacker could exploit this vulnerability by repeatedly sending crafted DHCPv4 packets to an affected device. A successful exploit could allow the attacker to exhaust available memory, which would affect availability of services and prevent new processes from starting, resulting in a Denial of Service (DoS) condition that would require a manual reboot. Note: On Cisco Secure FTD Software, this vulnerability does not affect management interfaces.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Vendors
CVE-2025-5324

TechPowerUp GPU-Z 0x8000645C IOCTL GPU-Z.sys sub_140001880 memory leak

A vulnerability, which was classified as problematic, was found in TechPowerUp GPU-Z 2.23.0. Affected is the function sub_140001880 in the library GPU-Z.sys of the component 0x8000645C IOCTL Handler. The manipulation leads to memory leak. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS 4.0 · 4.8 Medium EPSS < 1% KEV · Not listed
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CVE-2025-20133

Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Remote Access SSL VPN Authentication Targeted Denial of Service Vulnerability

A vulnerability in the management and VPN web servers of the Remote Access SSL VPN feature of Cisco Secure Firewall ASA Software and Secure FTD Software could allow an unauthenticated, remote attacker to cause the device to unexpectedly stop responding, resulting in a DoS condition. This vulnerability is due to ineffective validation of user-supplied input during the Remote Access SSL VPN authentication process. An attacker could exploit this vulnerability by sending a crafted request to the VPN service on an affected device. A successful exploit could allow the attacker to cause a DoS condition where the device stops responding to Remote Access SSL VPN authentication requests.

CVSS 3.1 · 8.6 High EPSS < 1% KEV · Not listed
Vendors
CVE-2025-47279

undici Denial of Service attack via bad certificate data

Undici is an HTTP/1.1 client for Node.js. Prior to versions 5.29.0, 6.21.2, and 7.5.0, applications that use undici to implement a webhook-like system are vulnerable. If the attacker set up a server with an invalid certificate, and they can force the application to call the webhook repeatedly, then they can cause a memory leak. This has been patched in versions 5.29.0, 6.21.2, and 7.5.0. As a workaound, avoid calling a webhook repeatedly if the webhook fails.

CVSS 3.1 · 3.1 Low EPSS < 1% KEV · Not listed
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CVE-2025-20225

A vulnerability in the Internet Key Exchange Version 2 (IKEv2) feature of Cisco IOS Software, IOS XE Software, Secure Firewall Adaptive Security Appliance (ASA) Software, and Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to trigger a memory leak, resulting in a denial of service (DoS) condition. This vulnerability is due to a lack of proper processing of IKEv2 packets. An attacker could exploit this vulnerability by sending crafted IKEv2 packets to an affected device. In the case of Cisco IOS and IOS XE Software, a successful exploit could allow the attacker to cause the device to reload unexpectedly. In the case of Cisco ASA and FTD Software, a successful exploit could allow the attacker to partially exhaust system memory, causing system instability such as being unable to establish new IKEv2 VPN sessions. A manual reboot of the device is required to recover from this condition.

CVSS 3.1 · 5.8 Medium EPSS < 1% KEV · Not listed
Vendors
CVE-2025-20077

Missing release of memory after effective lifetime in the UEFI OobRasMmbiHandlerDriver module for some Intel(R) reference server platforms may allow a privileged user to enable denial of service via local access.

CVSS 4.0 · 5.6 Medium EPSS < 1% KEV · Not listed
Vendors
CVE-2026-34052

LTI JupyterHub Authenticator: Unbounded Memory Growth via Nonce Storage (Denial of Service)

LTI JupyterHub Authenticator is a JupyterHub authenticator for LTI. Prior to version 1.6.3, the LTI 1.1 validator stores OAuth nonces in a class-level dictionary that grows without bounds. Nonces are added before signature validation, so an attacker with knowledge of a valid consumer key can send repeated requests with unique nonces to gradually exhaust server memory, causing a denial of service. This issue has been patched in version 1.6.3.

CVSS 3.1 · 5.9 Medium EPSS < 1% KEV · Not listed
CVE-2023-53424

clk: mediatek: fix of_iomap memory leak

In the Linux kernel, the following vulnerability has been resolved: clk: mediatek: fix of_iomap memory leak Smatch reports: drivers/clk/mediatek/clk-mtk.c:583 mtk_clk_simple_probe() warn: 'base' from of_iomap() not released on lines: 496. This problem was also found in linux-next. In mtk_clk_simple_probe(), base is not released when handling errors if clk_data is not existed, which may cause a leak. So free_base should be added here to release base.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
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CVE-2023-5371

Memory Allocation with Excessive Size Value in Wireshark

RTPS dissector memory leak in Wireshark 4.0.0 to 4.0.8 and 3.6.0 to 3.6.16 allows denial of service via packet injection or crafted capture file

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Products
CVE-2023-4513

Missing Release of Memory after Effective Lifetime in Wireshark

BT SDP dissector memory leak in Wireshark 4.0.0 to 4.0.7 and 3.6.0 to 3.6.15 allows denial of service via packet injection or crafted capture file

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
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CVE-2026-33856

Missing Release of Memory after Effective Lifetime in MolotovCherry Android-ImageMagick7

Missing Release of Memory after Effective Lifetime vulnerability in MolotovCherry Android-ImageMagick7.This issue affects Android-ImageMagick7: before 7.1.2-11.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
CVE-2026-33852

Missing Release of Memory after Effective Lifetime in MolotovCherry Android-ImageMagick7

Missing Release of Memory after Effective Lifetime vulnerability in MolotovCherry Android-ImageMagick7.This issue affects Android-ImageMagick7: before 7.1.2-11.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
CVE-2025-71081

ASoC: stm32: sai: fix OF node leak on probe

In the Linux kernel, the following vulnerability has been resolved: ASoC: stm32: sai: fix OF node leak on probe The reference taken to the sync provider OF node when probing the platform device is currently only dropped if the set_sync() callback fails during DAI probe. Make sure to drop the reference on platform probe failures (e.g. probe deferral) and on driver unbind. This also avoids a potential use-after-free in case the DAI is ever reprobed without first rebinding the platform driver.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
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CVE-2025-71187

dmaengine: sh: rz-dmac: fix device leak on probe failure

In the Linux kernel, the following vulnerability has been resolved: dmaengine: sh: rz-dmac: fix device leak on probe failure Make sure to drop the reference taken when looking up the ICU device during probe also on probe failures (e.g. probe deferral).

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
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CVE-2026-32874

UltraJSON has a Memory Leak parsing large integers allows DoS

UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. Versions 5.4.0 through 5.11.0 contain an accumulating memory leak in JSON parsing large (outside of the range [-2^63, 2^64 - 1]) integers. The leaked memory is a copy of the string form of the integer plus an additional NULL byte. The leak occurs irrespective of whether the integer parses successfully or is rejected due to having more than sys.get_int_max_str_digits() digits, meaning that any sized leak per malicious JSON can be achieved provided that there is no limit on the overall size of the payload. Any service that calls ujson.load()/ujson.loads()/ujson.decode() on untrusted inputs is affected and vulnerable to denial of service attacks. This issue has been fixed in version 5.12.0.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Products
CVE-2026-30873

OpenWrt Project jsonpath: Memory leak when processing strings, labels, and regexp tokens

OpenWrt Project is a Linux operating system targeting embedded devices. In versions prior to both 24.10.6 and 25.12.1, the jp_get_token function, which performs lexical analysis by breaking input expressions into tokens, contains a memory leak vulnerability when extracting string literals, field labels, and regular expressions using dynamic memory allocation. These extracted results are stored in a jp_opcode struct, which is later copied to a newly allocated jp_opcode object via jp_alloc_op. During this transfer, if a string was previously extracted and stored in the initial jp_opcode, it is copied to the new allocation but the original memory is never freed, resulting in a memory leak. This issue has been fixed in versions 24.10.6 and 25.12.1.

CVSS 4.0 · 2.4 Low EPSS < 1% KEV · Not listed
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CVE-2023-53579

gpio: mvebu: fix irq domain leak

In the Linux kernel, the following vulnerability has been resolved: gpio: mvebu: fix irq domain leak Uwe Kleine-König pointed out we still have one resource leak in the mvebu driver triggered on driver detach. Let's address it with a custom devm action.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
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CVE-2023-53577

bpf, cpumap: Make sure kthread is running before map update returns

In the Linux kernel, the following vulnerability has been resolved: bpf, cpumap: Make sure kthread is running before map update returns The following warning was reported when running stress-mode enabled xdp_redirect_cpu with some RT threads: ------------[ cut here ]------------ WARNING: CPU: 4 PID: 65 at kernel/bpf/cpumap.c:135 CPU: 4 PID: 65 Comm: kworker/4:1 Not tainted 6.5.0-rc2+ #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996) Workqueue: events cpu_map_kthread_stop RIP: 0010:put_cpu_map_entry+0xda/0x220 ...... Call Trace: <TASK> ? show_regs+0x65/0x70 ? __warn+0xa5/0x240 ...... ? put_cpu_map_entry+0xda/0x220 cpu_map_kthread_stop+0x41/0x60 process_one_work+0x6b0/0xb80 worker_thread+0x96/0x720 kthread+0x1a5/0x1f0 ret_from_fork+0x3a/0x70 ret_from_fork_asm+0x1b/0x30 </TASK> The root cause is the same as commit 436901649731 ("bpf: cpumap: Fix memory leak in cpu_map_update_elem"). The kthread is stopped prematurely by kthread_stop() in cpu_map_kthread_stop(), and kthread() doesn't call cpu_map_kthread_run() at all but XDP program has already queued some frames or skbs into ptr_ring. So when __cpu_map_ring_cleanup() checks the ptr_ring, it will find it was not emptied and report a warning. An alternative fix is to use __cpu_map_ring_cleanup() to drop these pending frames or skbs when kthread_stop() returns -EINTR, but it may confuse the user, because these frames or skbs have been handled correctly by XDP program. So instead of dropping these frames or skbs, just make sure the per-cpu kthread is running before __cpu_map_entry_alloc() returns. After apply the fix, the error handle for kthread_stop() will be unnecessary because it will always return 0, so just remove it.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
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CVE-2023-53568

s390/zcrypt: don't leak memory if dev_set_name() fails

In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: don't leak memory if dev_set_name() fails When dev_set_name() fails, zcdn_create() doesn't free the newly allocated resources. Do it.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
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