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Denial of Service

other MEDIUM

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

How It Works

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions. Attackers exploit asymmetry: minimal attacker effort produces disproportionate resource consumption on the target. Application-level attacks use specially crafted inputs that trigger expensive operations—a regex engine processing malicious patterns can backtrack exponentially, or XML parsers recursively expand entities until memory exhausts. Network-level attacks flood targets with connection requests or amplify traffic through reflection, but application vulnerabilities often provide the most efficient attack surface.

The attack typically begins with reconnaissance to identify resource-intensive operations or unprotected endpoints. For algorithmic complexity attacks, adversaries craft inputs hitting worst-case performance—hash collision inputs filling hash tables with collisions, deeply nested JSON triggering recursive parsing, or pathological regex patterns like (a+)+b against strings of repeated 'a' characters. Resource exhaustion attacks open thousands of connections, upload massive files to unbounded storage, or trigger memory leaks through repeated operations. Crash-based attacks target error handling gaps: null pointer dereferences, unhandled exceptions in parsers, or assertion failures that terminate processes.

Impact

  • Service unavailability preventing legitimate users from accessing applications during attack duration
  • Revenue loss from downtime in e-commerce, SaaS platforms, or transaction processing systems
  • Cascading failures as resource exhaustion spreads to dependent services or database connections pool out
  • SLA violations triggering financial penalties and damaging customer trust
  • Security team distraction providing cover for data exfiltration or intrusion attempts running concurrently

Real-World Examples

CVE-2018-1000544 in Ruby's WEBrick server allowed ReDoS through malicious HTTP headers containing specially crafted patterns that caused the regex engine to backtrack exponentially, freezing request processing threads. A single attacker could saturate all available workers.

Cloudflare experienced a global outage in 2019 when a single WAF rule containing an unoptimized regex hit pathological cases on legitimate traffic spikes. The .*(?:.*=.*)* pattern exhibited catastrophic backtracking, consuming CPU cycles across their edge network until the rule was disabled.

CVE-2013-1664 demonstrated XML bomb vulnerabilities in Python's XML libraries. Attackers uploaded XML documents with nested entity definitions-each entity expanding to ten copies of the previous level. A 1KB upload could expand to gigabytes in memory during parsing, crashing applications instantly.

Mitigation

  • Strict input validation enforcing size limits, complexity bounds, and nesting depth restrictions before processing
  • Request rate limiting per IP address, API key, or user session with exponential backoff
  • Timeout enforcement terminating operations exceeding reasonable execution windows (typically 1-5 seconds)
  • Resource quotas limiting memory allocation, CPU time, and connection counts per request or tenant
  • Regex complexity analysis using linear-time algorithms or sanitizing patterns to eliminate backtracking
  • Circuit breakers automatically rejecting requests when error rates or latency thresholds indicate degradation
  • Load balancing and autoscaling distributing traffic across instances with automatic capacity expansion

Recent CVEs (36822)

EPSS 0% CVSS 7.8
HIGH This Week

NVIDIA runx contains a vulnerability where an attacker could cause a code injection. A successful exploit of this vulnerability might lead to code execution, denial of service, escalation of privileges, information disclosure, and data tampering. [CVSS 7.8 HIGH]

Denial Of Service Privilege Escalation Code Injection +2
NVD
EPSS 0% CVSS 7.7
HIGH POC PATCH This Week

Kyverno versions up to 1.16.3 is affected by allocation of resources without limits or throttling (CVSS 7.7).

Denial Of Service Kyverno Suse
NVD GitHub
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Suricata versions prior to 8.0.3 and 7.0.14 are vulnerable to a denial of service condition where specially crafted DNP3 traffic triggers excessive memory consumption, potentially exhausting system memory and causing the service to crash. An unauthenticated attacker on the network can exploit this by sending malicious DNP3 packets to cause the IDS/IPS engine to become unavailable. A patch is available in the latest versions, and users can mitigate the risk by disabling the DNP3 parser if not required.

Denial Of Service Suricata Suse
NVD GitHub
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Uncontrolled buffer expansion in Suricata's DCERPC parser allows remote attackers to trigger unbounded memory allocation and cause denial of service by sending specially crafted DCERPC traffic. The vulnerability affects versions prior to 8.0.3 and 7.0.14 across DCERPC/UDP, DCERPC/TCP, and SMB protocols, with TCP being partially protected by default stream depth limits. Patches are available, and administrators can mitigate by disabling vulnerable parsers or configuring stream reassembly depth limits.

Denial Of Service Suricata Suse
NVD GitHub
EPSS 0% CVSS 7.5
HIGH This Week

Ix Ray Engine 1.6 before version 1.3 contains an infinite loop vulnerability that allows remote attackers to cause denial of service without authentication or user interaction. The flaw stems from an unreachable exit condition in a processing loop, enabling attackers to exhaust system resources and render the application unresponsive. No patch is currently available for this high-severity issue.

Denial Of Service Ix Ray Engine 1.6
NVD GitHub
EPSS 0% CVSS 5.3
MEDIUM PATCH This Month

OpenSSL's PKCS#7 signature verification fails to validate ASN1_TYPE union members before access, allowing attackers to trigger null pointer dereference crashes by submitting malformed PKCS#7 data. Applications performing signature verification or using PKCS7_digest_from_attributes() directly are vulnerable to denial of service attacks. A patch is available to address this type confusion vulnerability.

OpenSSL Denial Of Service
NVD GitHub VulDB
EPSS 0% CVSS 5.5
MEDIUM PATCH This Month

Processing a malformed PKCS#12 file in OpenSSL and related TLS libraries can trigger a null pointer dereference due to improper type validation in ASN.1 parsing, causing applications to crash. This vulnerability requires local user interaction to exploit and results only in denial of service, with no impact on data confidentiality or integrity. A patch is available to address this medium-severity issue.

OpenSSL Denial Of Service
NVD GitHub VulDB
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Issue summary: Processing a malformed PKCS#12 file can trigger a NULL pointer dereference in the PKCS12_item_decrypt_d2i_ex() function. Impact summary: A NULL pointer dereference can trigger a crash which leads to Denial of Service for an application processing PKCS#12 files. [CVSS 7.5 HIGH]

OpenSSL Null Pointer Dereference Denial Of Service +1
NVD GitHub VulDB
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Issue summary: A type confusion vulnerability exists in the TimeStamp Response verification code where an ASN1_TYPE union member is accessed without first validating the type, causing an invalid or NULL pointer dereference when processing a malformed TimeStamp Response file. [CVSS 7.5 HIGH]

OpenSSL Denial Of Service
NVD GitHub VulDB
EPSS 0% CVSS 7.4
HIGH PATCH This Week

Issue summary: Calling PKCS12_get_friendlyname() function on a maliciously crafted PKCS#12 file with a BMPString (UTF-16BE) friendly name containing non-ASCII BMP code point can trigger a one byte write before the allocated buffer. [CVSS 7.4 HIGH]

OpenSSL Memory Corruption Denial Of Service +1
NVD GitHub VulDB
EPSS 0% CVSS 4.7
MEDIUM PATCH This Month

Issue summary: Writing large, newline-free data into a BIO chain using the line-buffering filter where the next BIO performs short writes can trigger a heap-based out-of-bounds write. [CVSS 4.7 MEDIUM]

OpenSSL Memory Corruption Denial Of Service +1
NVD GitHub VulDB
EPSS 0% CVSS 5.9
MEDIUM POC PATCH This Month

Issue summary: A TLS 1.3 connection using certificate compression can be forced to allocate a large buffer before decompression without checking against the configured certificate size limit. [CVSS 5.9 MEDIUM]

OpenSSL TLS Memory Corruption +4
NVD GitHub VulDB
EPSS 0% CVSS 8.7
HIGH This Week

A denial-of-service vulnerability exists in the NetX IPv6 component functionality of Eclipse ThreadX NetX Duo. A specially crafted network packet of "Packet Too Big" with more than 15 different source address can lead to denial of service.

Denial Of Service Threadx Netx Duo
NVD GitHub
EPSS 0% CVSS 5.5
MEDIUM POC PATCH This Month

Buffer Overflow vulnerability in libpng 1.6.43-1.6.46 allows a local attacker to cause a denial of service via png_create_read_struct() function. [CVSS 5.5 MEDIUM]

Buffer Overflow Denial Of Service Libpng +2
NVD GitHub
EPSS 0% CVSS 5.5
MEDIUM POC PATCH This Month

Buffer Overflow vulnerability in libpng 1.6.43-1.6.46 allows a local attacker to cause a denial of service via the pngimage with AddressSanitizer (ASan), the program leaks memory in various locations, eventually leading to high memory usage and causing the program to become unresponsive [CVSS 5.5 MEDIUM]

Buffer Overflow Denial Of Service Libpng +2
NVD GitHub
EPSS 0% CVSS 5.9
MEDIUM PATCH This Month

Issue summary: If an application using the SSL_CIPHER_find() function in a QUIC protocol client or server receives an unknown cipher suite from the peer, a NULL dereference occurs. [CVSS 5.9 MEDIUM]

OpenSSL TLS Null Pointer Dereference +3
NVD GitHub VulDB
EPSS 0% CVSS 6.1
MEDIUM POC PATCH This Month

Issue summary: PBMAC1 parameters in PKCS#12 files are missing validation which can trigger a stack-based buffer overflow, invalid pointer or NULL pointer dereference during MAC verification. [CVSS 6.1 MEDIUM]

OpenSSL Buffer Overflow Null Pointer Dereference +4
NVD GitHub VulDB
EPSS 0% CVSS 6.5
MEDIUM POC This Month

Laravel Nova 3.7.0 contains a denial of service vulnerability that allows authenticated users to crash the application by manipulating the 'range' parameter. Attackers can send simultaneous requests with an extremely high range value to overwhelm and crash the server. [CVSS 6.5 MEDIUM]

Laravel Denial Of Service
NVD Exploit-DB
EPSS 0% CVSS 7.5
HIGH POC This Week

Tapinradio versions up to 2.13.7 is affected by allocation of resources without limits or throttling (CVSS 7.5).

Denial Of Service Tapinradio
NVD Exploit-DB
EPSS 0% CVSS 7.5
HIGH POC This Week

SyncBreeze 10.0.28 contains a denial of service vulnerability in the login endpoint that allows remote attackers to crash the service. Attackers can send an oversized payload in the login request to overwhelm the application and potentially disrupt service availability. [CVSS 7.5 HIGH]

Denial Of Service Syncbreeze
NVD Exploit-DB VulDB
EPSS 0% CVSS 9.8
CRITICAL POC Act Now

Easy CD & DVD Cover Creator 4.13 has a buffer overflow in serial number input.

Buffer Overflow Denial Of Service
NVD Exploit-DB
EPSS 0% CVSS 2.8
LOW Monitor

A flaw was found in Glib's content type parsing logic. This buffer underflow vulnerability occurs because the length of a header line is stored in a signed integer, which can lead to integer wraparound for very large inputs. [CVSS 2.8 LOW]

Denial Of Service
NVD VulDB
EPSS 0%
Monitor

A vulnerability in the Pix-Link LV-WR21Q router's language module allows remote attackers to trigger a denial of service (DoS) by sending a specially crafted HTTP POST request containing non-existing language parameter.

Denial Of Service
NVD GitHub
EPSS 0% CVSS 7.5
HIGH This Week

A memory leak in is-Engine before version 3.3.4 allows remote attackers to cause a denial of service by exhausting server memory without requiring authentication or user interaction. The vulnerability affects all versions of is-Engine prior to 3.3.4 and has a high CVSS score of 7.5 due to its network-accessible nature and ease of exploitation. No patch is currently available for this issue.

Denial Of Service
NVD GitHub
EPSS 0%
Monitor

Missing Release of Memory after Effective Lifetime vulnerability in ydb-platform ydb (contrib/libs/yajl modules). This vulnerability is associated with program files yail_tree.C.

Denial Of Service
NVD GitHub
EPSS 0%
Monitor

Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in coolsnowwolf lede (package/lean/mt/drivers/mt7603e/src/mt7603_wifi/common modules). This vulnerability is associated with program files bn_lib.C.

Denial Of Service
NVD GitHub
EPSS 0%
Monitor

Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in coolsnowwolf lede (package/lean/mt/drivers/mt7615d/src/mt_wifi/embedded/security modules). This vulnerability is associated with program files bn_lib.C.

Denial Of Service
NVD GitHub
EPSS 0%
This Week

Multiple Buffer Overflows in Admin UI of EZCast Pro II version 1.17478.146 allow attackers to cause a program crash and potential remote code execution

RCE Buffer Overflow Denial Of Service
NVD
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Grafana is vulnerable to denial of service through resource exhaustion when processing uncached avatar requests with random hashes. Sustained requests cause goroutines to accumulate indefinitely due to timeout handling issues, eventually consuming all available memory and crashing the application. An unauthenticated remote attacker can exploit this vulnerability without user interaction to render affected Grafana instances unavailable.

Grafana Denial Of Service
NVD VulDB
EPSS 0% CVSS 9.1
CRITICAL PATCH Act Now

XXE (XML External Entity) injection in AssertJ Java testing library from 1.4.0 to before 3.27.7 allows reading arbitrary files when parsing XML assertions. Patch available.

Java SSRF XXE +4
NVD GitHub
EPSS 0% CVSS 5.9
MEDIUM PATCH This Month

A denial of service vulnerability exists in Next.js versions with Partial Prerendering (PPR) enabled when running in minimal mode. The PPR resume endpoint accepts unauthenticated POST requests with the `Next-Resume: 1` header and processes attacker-controlled postponed state data. [CVSS 5.9 MEDIUM]

Node.js Denial Of Service Next.Js +2
NVD GitHub
EPSS 0% CVSS 5.9
MEDIUM PATCH This Month

A denial of service vulnerability exists in self-hosted Next.js applications that have `remotePatterns` configured for the Image Optimizer. [CVSS 5.9 MEDIUM]

Denial Of Service Next.Js Red Hat +1
NVD GitHub HeroDevs
EPSS 1% CVSS 7.5
HIGH PATCH This Week

Uncontrolled resource consumption in React Server Components (react-server-dom-parcel, react-server-dom-turbopack, react-server-dom-webpack) allows unauthenticated remote attackers to trigger denial of service through malformed requests to Server Function endpoints, causing server crashes, memory exhaustion, or CPU spikes. Applications using these packages are at risk of availability disruption. No patch is currently available; immediate mitigation and monitoring are recommended.

React Denial Of Service
NVD VulDB
EPSS 0% CVSS 3.1
LOW Monitor

A flaw was found in Keycloak's SAML brokering functionality. When Keycloak is configured as a client in a Security Assertion Markup Language (SAML) setup, it fails to validate the `NotOnOrAfter` timestamp within the `SubjectConfirmationData`. [CVSS 3.1 LOW]

Denial Of Service
NVD
EPSS 0% CVSS 4.0
MEDIUM PATCH This Month

A flaw was found in the GnuTLS library, specifically in the gnutls_pkcs11_token_init() function that handles PKCS#11 token initialization. When a token label longer than expected is processed, the function writes past the end of a fixed-size stack buffer. [CVSS 4.0 MEDIUM]

Denial Of Service Privilege Escalation RCE +2
NVD VulDB
EPSS 0% CVSS 4.3
MEDIUM PATCH This Month

A flaw was found in Hibernate Reactive. When an HTTP endpoint is exposed to perform database operations, a remote client can prematurely close the HTTP connection. [CVSS 4.3 MEDIUM]

React Denial Of Service Red Hat
NVD
EPSS 0% CVSS 6.4
MEDIUM PATCH This Month

A flaw was found in kubevirt. A user within a virtual machine (VM), if the guest agent is active, can exploit this by causing the agent to report an excessive number of network interfaces. [CVSS 6.4 MEDIUM]

Denial Of Service Red Hat Suse
NVD VulDB
EPSS 0% CVSS 4.9
MEDIUM This Month

Tanium addressed an uncontrolled resource consumption vulnerability in Discover. [CVSS 4.9 MEDIUM]

Denial Of Service Discover
NVD
EPSS 0%
Monitor

The Access Manager is using the open source web server CompactWebServer written in C#. This web server is affected by a path traversal vulnerability, which allows an attacker to directly access files via simple GET requests without prior authentication.

SQLi Denial Of Service Path Traversal
NVD
EPSS 0% CVSS 1.9
LOW POC PATCH Monitor

A weakness has been identified in GPAC up to 2.4.0. Affected by this issue is the function dump_isom_rtp of the file applications/mp4box/filedump.c. [CVSS 3.3 LOW]

Denial Of Service Gpac
NVD GitHub VulDB
EPSS 0% CVSS 1.9
LOW POC PATCH Monitor

A security flaw has been discovered in GPAC up to 2.4.0. Affected by this vulnerability is the function DumpMovieInfo of the file applications/mp4box/filedump.c. [CVSS 3.3 LOW]

Denial Of Service Gpac
NVD GitHub VulDB
EPSS 0% CVSS 1.9
LOW POC PATCH Monitor

A vulnerability was identified in GPAC up to 2.4.0. Affected is the function gf_media_export_webvtt_metadata of the file src/media_tools/media_export.c. [CVSS 3.3 LOW]

Denial Of Service Gpac
NVD GitHub VulDB
EPSS 0% CVSS 7.0
HIGH PATCH This Week

The Linux kernel's Octeon EP VF driver contains a use-after-free vulnerability in IRQ error handling where mismatched device IDs between request_irq() and free_irq() calls can leave IRQ handlers registered after their associated memory is freed. A local attacker with standard privileges can trigger an interrupt after the vulnerable ioq_vector structure is deallocated, causing a kernel crash or potential code execution. No patch is currently available.

Linux Use After Free Denial Of Service +3
NVD VulDB
EPSS 0% CVSS 5.5
MEDIUM PATCH This Month

The Linux kernel's ipgre_header() function lacks proper validation when handling dynamically resized network device headers, allowing local attackers with network privileges to trigger kernel panics through memory corruption. This vulnerability affects systems using team or bonding drivers that can modify device headroom parameters, enabling denial of service attacks without requiring user interaction.

Linux Denial Of Service Google
NVD VulDB
EPSS 0% CVSS 5.5
MEDIUM PATCH This Month

The Linux kernel xHCI sideband endpoint removal function can crash when dereferencing a freed or non-existent transfer ring during suspend/resume cycles or device re-enumeration. A local attacker with user-level privileges can trigger a denial of service by causing the kernel to dereference invalid memory, resulting in a system crash. No patch is currently available for this medium-severity vulnerability.

Linux Denial Of Service Linux Kernel +2
NVD VulDB
EPSS 0% CVSS 5.5
MEDIUM PATCH This Month

The vmwgfx driver in the Linux kernel crashes due to a null pointer dereference when KMS with 3D graphics is used on hardware version 10, which lacks GB Surfaces support. A local attacker with user-level privileges can trigger this vulnerability to cause a denial of service by crashing the display driver, resulting in a black screen. No patch is currently available for this medium-severity vulnerability.

Linux Denial Of Service Null Pointer Dereference +3
NVD VulDB
EPSS 0% CVSS 5.5
MEDIUM PATCH This Month

The Linux kernel's ASoC tlv320adcx140 audio driver contains a null pointer dereference in the adcx140_priv structure due to improper initialization of the snd_soc_component field, allowing local authenticated users to trigger a denial of service. An attacker with local access and user-level privileges can crash the audio subsystem by invoking the vulnerable code path. No patch is currently available for this medium-severity vulnerability.

Linux Null Pointer Dereference Denial Of Service +3
NVD VulDB
EPSS 0% CVSS 7.8
HIGH PATCH This Week

A race condition in Linux kernel routing code allows local authenticated attackers to cause a denial of service by triggering a kernel crash through unsynchronized list operations in rt6_uncached_list_del() and rt_del_uncached_list(). The vulnerability occurs when concurrent CPU operations on list data structures result in use-after-free conditions during list initialization. No patch is currently available for this medium-severity issue.

Linux Denial Of Service Google +1
NVD VulDB
EPSS 0% CVSS 5.5
MEDIUM PATCH This Month

A null pointer dereference in the Linux kernel's build ID library can cause a denial of service when reading files in sleepable contexts. Local users with standard privileges can trigger a kernel crash through the filemap_read_folio() code path. This vulnerability requires no user interaction and affects the availability of the system.

Linux Null Pointer Dereference Denial Of Service +3
NVD VulDB
EPSS 0% CVSS 5.5
MEDIUM PATCH This Month

The Linux kernel mlx5e driver crashes with a null pointer dereference when profile change operations fail and rollback is unsuccessful, leaving the network device in an invalid state. A local attacker with standard user privileges can trigger a denial of service by attempting subsequent profile changes, such as through switchdev mode modifications, which will access the dangling null pointer and crash the system.

Linux Null Pointer Dereference Denial Of Service +3
NVD VulDB
EPSS 0% CVSS 7.5
HIGH PATCH This Week

The Linux kernel's NVMe-TCP implementation fails to validate pointer initialization in nvmet_tcp_build_pdu_iovec(), allowing remote attackers to trigger NULL pointer dereferences and cause denial of service by sending H2C_DATA PDUs before completing proper command initialization. An unauthenticated network attacker can exploit this vulnerability to crash the kernel without requiring user interaction or special privileges.

Linux Null Pointer Dereference Denial Of Service
NVD VulDB
EPSS 0% CVSS 7.8
HIGH PATCH This Week

In the Linux kernel, the following vulnerability has been resolved: dmaengine: tegra-adma: Fix use-after-free A use-after-free bug exists in the Tegra ADMA driver when audio streams are terminated, particularly during XRUN conditions. [CVSS 7.8 HIGH]

Linux Use After Free Denial Of Service +1
NVD VulDB
EPSS 0% CVSS 9.8
CRITICAL Act Now

Write-after-free crash in GPU compiler process triggered by unusual GPU shader code loaded from the web. Browser vulnerability through WebGPU shader compilation.

Use After Free Denial Of Service Ddk
NVD
EPSS 0% CVSS 7.1
HIGH POC PATCH This Week

iccDEV versions 2.3.1.1 and earlier contain unsafe handling of user-supplied input in the CIccTagXmlSegmentedCurve::ToXml() function, enabling remote attackers to trigger undefined behavior in ICC profile parsing. Public exploit code exists for this vulnerability, which can lead to denial of service, data manipulation, or arbitrary code execution. Upgrade to version 2.3.1.2 to remediate.

Denial Of Service RCE Code Injection +1
NVD GitHub
EPSS 0% CVSS 6.5
MEDIUM PATCH This Month

Avahi daemon versions 0.9rc2 and below can be remotely crashed through a denial of service attack by sending a specially crafted mDNS response with a recursive CNAME record pointing to itself, triggering unbounded recursion and stack exhaustion. This vulnerability affects systems using multicast record browsers, including those relying on nss-mdns for service discovery. A patch is available for affected installations.

Denial Of Service Avahi Red Hat +1
NVD GitHub
EPSS 0% CVSS 7.1
HIGH POC PATCH This Week

iccDEV versions 2.3.1.1 and earlier allow remote attackers to trigger undefined behavior in the icSigCalcOp() function through malicious ICC color profiles, enabling denial of service, data manipulation, or potential code execution. The vulnerability stems from unsafe handling of user-controllable input in binary profile data, and public exploit code exists. Affected organizations should upgrade to version 2.3.1.2 or later.

Denial Of Service RCE Code Injection +1
NVD GitHub
EPSS 0% CVSS 7.5
HIGH POC This Week

Nsauditor versions up to 3.2.2.0 is affected by allocation of resources without limits or throttling (CVSS 7.5).

Denial Of Service Nsauditor
NVD Exploit-DB
EPSS 0% CVSS 7.5
HIGH POC This Week

Managed Switch Port Mapping Tool 2.85.2 contains a denial of service vulnerability that allows attackers to crash the application by creating an oversized buffer. [CVSS 7.5 HIGH]

SNMP Denial Of Service
NVD Exploit-DB
EPSS 0% CVSS 7.5
HIGH POC This Week

AgataSoft PingMaster Pro 2.1 contains a denial of service vulnerability in the Trace Route feature that allows attackers to crash the application by overflowing the host name input field. [CVSS 7.5 HIGH]

Denial Of Service
NVD Exploit-DB
EPSS 0% CVSS 5.5
MEDIUM PATCH This Month

The Linux kernel's idpf driver contains a NULL pointer dereference in its RSS LUT handling that can be triggered when ethtool commands access the RSS lookup table immediately after a soft reset. Local users with standard privileges can crash the system by performing queue count changes followed by ethtool operations on the affected network interface. A patch is available to properly manage RSS LUT state during soft resets based on queue count changes.

Linux Null Pointer Dereference Denial Of Service +2
NVD VulDB
EPSS 0% CVSS 5.5
MEDIUM PATCH This Month

The Linux kernel's Ceph authentication handler fails to properly propagate errors from mon_handle_auth_done(), allowing the msgr2 protocol to proceed with session establishment even when authentication fails in secure mode. This can trigger a NULL pointer dereference in prepare_auth_signature(), causing a denial of service on systems using Ceph for storage or communication. Local attackers with privileges to interact with Ceph authentication can crash the kernel or cause system instability.

Linux Null Pointer Dereference Denial Of Service
NVD VulDB
EPSS 0% CVSS 7.5
HIGH PATCH This Week

A null pointer dereference vulnerability in the Linux kernel's libceph library occurs when free_choose_arg_map() is called after a partial memory allocation failure, allowing a local attacker with low privileges to cause a denial of service. The vulnerability exists because the function does not validate pointers before dereferencing them during cleanup operations. A patch is available to add proper pointer checks and make the cleanup routine resilient to incomplete allocations.

Linux Null Pointer Dereference Denial Of Service
NVD VulDB
EPSS 0% CVSS 5.5
MEDIUM PATCH This Month

The Linux kernel nfsd subsystem crashes when attempting to unlock a filesystem via administrative interface while the nfsd service is not running, as the unlock operation accesses freed state structures. A local user with administrative privileges can trigger a denial of service by attempting filesystem unlock operations against a stopped nfsd server.

Linux Denial Of Service Linux Kernel +2
NVD VulDB
EPSS 0% CVSS 5.5
MEDIUM PATCH This Month

A null pointer dereference in the Linux kernel's traffic control action module (act_api) causes a denial of service during network namespace teardown when invalid error pointers are dereferenced. A local attacker with low privileges can trigger this crash by manipulating tc actions during system shutdown or container termination. A patch is available to guard against ERR_PTR entries during action cleanup.

Linux Denial Of Service Linux Kernel +2
NVD VulDB
EPSS 0% CVSS 4.7
MEDIUM PATCH This Month

A race condition in the Linux kernel's gpiolib subsystem allows local attackers with privileges to cause a kernel crash by exploiting unprotected access to uninitialized SRCU synchronization structures during concurrent gpiochip driver initialization. An attacker can trigger this vulnerability by causing multiple drivers to call gpiochip_add_data_with_key() simultaneously, resulting in a kernel page fault and denial of service.

Linux Denial Of Service Race Condition
NVD VulDB
EPSS 0% CVSS 5.5
MEDIUM PATCH This Month

The Linux kernel's idpf driver crashes with a NULL pointer dereference when ethtool RSS operations are performed before the network interface is brought up, affecting systems using this driver. A local attacker with unprivileged user access can trigger a denial of service by executing RSS configuration commands on a down interface. The vulnerability is resolved by initializing the RSS lookup table during vport creation rather than at interface startup.

Linux Null Pointer Dereference Denial Of Service +2
NVD VulDB
EPSS 0% CVSS 5.5
MEDIUM PATCH This Month

The ocelot network driver in the Linux kernel is susceptible to a null pointer dereference crash when adding a network interface under a link aggregation group, affecting systems using the ocelot_vsc7514 frontend. A local attacker with unprivileged access can trigger this denial of service condition by performing specific network interface configuration operations. A patch is available that adds proper pointer validation before accessing port structures.

Linux Null Pointer Dereference Denial Of Service
NVD VulDB
EPSS 0% CVSS 5.5
MEDIUM PATCH This Month

A null pointer dereference in the Linux kernel's idpf driver allows local attackers with user privileges to cause a denial of service by triggering improper netdevice state management during reset operations. The vulnerability occurs when the driver fails to properly detach and close network devices before deallocating vport resources, leaving pointers unprotected from concurrent callback access. A patch is available to resolve this issue by implementing proper device state synchronization during reset handling.

Linux Null Pointer Dereference Denial Of Service +2
NVD VulDB
EPSS 0% CVSS 5.5
MEDIUM PATCH This Month

In the Linux kernel, the following vulnerability has been resolved: gpio: mpsse: ensure worker is torn down When an IRQ worker is running, unplugging the device would cause a crash. The sealevel hardware this driver was written for was not hotpluggable, so I never realized it. [CVSS 5.5 MEDIUM]

Linux Denial Of Service Linux Kernel +2
NVD VulDB
EPSS 0% CVSS 2.9
LOW Monitor

In libexpat before 2.7.4, XML_ExternalEntityParserCreate does not copy unknown encoding handler user data. [CVSS 2.9 LOW]

Denial Of Service Null Pointer Dereference Libexpat
NVD GitHub VulDB
EPSS 0% CVSS 8.3
HIGH PATCH This Week

Hibernate's InlineIdsOrClauseBuilder is vulnerable to second-order SQL injection when processing non-alphanumeric characters in ID columns, allowing authenticated attackers to read sensitive data, modify database contents, or cause denial of service. The vulnerability requires low privileges and network access with no user interaction, making it exploitable by remote attackers with valid credentials. No patch is currently available.

SQLi Denial Of Service Information Disclosure
NVD HeroDevs VulDB
EPSS 0% CVSS 8.4
HIGH This Week

SIPp is vulnerable to a NULL pointer dereference that can be triggered by remote attackers sending malicious SIP messages during active calls, resulting in application crashes and denial of service. Under certain conditions, this vulnerability may also enable arbitrary code execution, potentially compromising system integrity and availability. No patch is currently available.

Null Pointer Dereference Denial Of Service Suse
NVD
EPSS 0% CVSS 7.5
HIGH This Week

This vulnerability arises because there are no limitations on the number of authentication attempts a user can make. An attacker can exploit this weakness by continuously sending authentication requests, leading to a denial-of-service (DoS) condition. [CVSS 7.5 HIGH]

Denial Of Service Authentication Bypass Evmapa
NVD GitHub
EPSS 0% CVSS 5.3
MEDIUM PATCH This Month

Rekor versions 1.4.3 and below are vulnerable to denial of service through a null pointer dereference when processing malformed cose/v0.0.1 entries with empty spec.message fields. An unauthenticated remote attacker can trigger a panic in the Rekor process by sending a specially crafted entry, resulting in a 500 error response and temporary service disruption, though the thread recovery mechanism limits availability impact. The vulnerability has been patched in version 1.5.0.

Denial Of Service Rekor Red Hat +1
NVD GitHub
EPSS 0% CVSS 3.5
LOW Monitor

Dell PowerScale OneFS, versions 9.5.0.0 through 9.5.1.5, versions 9.6.0.0 through 9.7.1.10, versions 9.8.0.0 through 9.10.1.3, versions starting from 9.11.0.0 and prior to 9.13.0.0, contains a Time-of-check Time-of-use (TOCTOU) race condition vulnerability. [CVSS 3.5 LOW]

Denial Of Service Race Condition Powerscale Onefs
NVD
EPSS 0% CVSS 5.0
MEDIUM This Month

Powerscale Onefs versions up to 9.5.1.5 is affected by incorrect permission assignment for critical resource (CVSS 5.0).

Denial Of Service Powerscale Onefs
NVD
EPSS 0%
Monitor

VB-Audio Voicemeeter, Voicemeeter Banana, and Voicemeeter Potato (versions ending in 1.1.1.9, 2.1.1.9, and 3.1.1.9 and earlier, respectively), as well as VB-Audio Matrix and Matrix Coconut (versions ending in 1.0.2.2 and 2.0.2.2 and earlier, respectively), contain a vulnerability in their virtual audio drivers (vbvoicemeetervaio64*.sys, vbmatrixvaio64*.sys, vbaudio_vmauxvaio*.sys, vbaudio_vmvaio*.sys, and vbaudio_vmvaio3*.sys).

Linux Windows Denial Of Service
NVD GitHub
EPSS 0%
Monitor

VB-Audio Voicemeeter, Voicemeeter Banana, and Voicemeeter Potato (versions ending in 1.1.1.9, 2.1.1.9, and 3.1.1.9 and earlier, respectively), as well as VB-Audio Matrix and Matrix Coconut (versions ending in 1.0.2.2 and 2.0.2.2 and earlier, respectively), contain a vulnerability in their virtual audio drivers (vbvoicemeetervaio64*.sys, vbmatrixvaio64*.sys, vbaudio_vmauxvaio*.sys, vbaudio_vmvaio*.sys, and vbaudio_vmvaio3*.sys).

Linux Windows Denial Of Service
NVD GitHub
EPSS 0%
Monitor

VB-Audio Voicemeeter, Voicemeeter Banana, and Voicemeeter Potato (versions ending in 1.1.1.9, 2.1.1.9, and 3.1.1.9 and earlier, respectively), as well as VB-Audio Matrix and Matrix Coconut (versions ending in 1.0.2.2 and 2.0.2.2 and earlier, respectively), contain a vulnerability in their virtual audio drivers (vbvoicemeetervaio64*.sys, vbmatrixvaio64*.sys, vbaudio_vmauxvaio*.sys, vbaudio_vmvaio*.sys, and vbaudio_vmvaio3*.sys).

Linux Windows Denial Of Service
NVD GitHub
EPSS 0% CVSS 7.5
HIGH POC PATCH This Week

The orjson.dumps function in orjson thru 3.11.4 does not limit recursion for deeply nested JSON documents. [CVSS 7.5 HIGH]

Denial Of Service Orjson Red Hat +1
NVD GitHub
EPSS 0% CVSS 7.4
HIGH POC This Week

Vega Smartwatch Firmware versions up to rb303atv006229 is affected by improper resource shutdown or release (CVSS 7.4).

Denial Of Service Vega Smartwatch Firmware
NVD GitHub
EPSS 0% CVSS 5.3
MEDIUM This Month

Gitlab versions up to 18.6.4 is affected by allocation of resources without limits or throttling (CVSS 5.3).

Gitlab SSH Denial Of Service
NVD
EPSS 0% CVSS 7.5
HIGH This Week

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.7 before 18.6.4, 18.7 before 18.7.2, and 18.8 before 18.8.2 that could have allowed an unauthenticated user to cause a denial of service condition by exploiting incorrect authorization validation in API endpoints. [CVSS 7.5 HIGH]

Gitlab Denial Of Service
NVD
EPSS 0% CVSS 7.5
HIGH This Week

Gitlab versions up to 18.6.4 is affected by allocation of resources without limits or throttling (CVSS 7.5).

Gitlab Denial Of Service
NVD
EPSS 0% CVSS 6.5
MEDIUM This Month

Gitlab versions up to 18.6.4 is affected by loop with unreachable exit condition (infinite loop) (CVSS 6.5).

Gitlab Denial Of Service
NVD
Awaiting Data

Rejected reason: ** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. No vendor patch available.

Denial Of Service
NVD
EPSS 0% CVSS 6.8
MEDIUM POC PATCH This Month

pytest versions up to 9.0.2 contains a vulnerability that allows attackers to cause a denial of service or possibly gain privileges (CVSS 6.8).

Denial Of Service Red Hat Suse
NVD GitHub
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Seroval versions 1.4.0 and below are vulnerable to denial of service attacks due to unbounded recursion when serializing deeply nested objects, allowing remote attackers to crash applications by exceeding the call stack limit. The vulnerability affects the deserialization library's handling of complex data structures without depth validation. Version 1.4.1 introduces a configurable depthLimit parameter to prevent exploitation of this resource exhaustion condition.

Deserialization Denial Of Service Red Hat +1
NVD GitHub
EPSS 0% CVSS 2.7
LOW PATCH Monitor

Denial-of-service in jsdiff versions prior to 8.0.3, 5.2.2, 4.0.4, and 3.5.1 allows unauthenticated remote attackers to crash applications by providing maliciously crafted patches with line break characters in filename headers, triggering an infinite loop that exhausts system memory. Applications calling parsePatch with user-supplied input are vulnerable regardless of input size restrictions. A patch is available for all affected versions.

Denial Of Service Jsdiff
NVD GitHub VulDB
EPSS 0% CVSS 5.9
MEDIUM PATCH This Month

go-tuf is a Go implementation of The Update Framework (TUF). [CVSS 5.9 MEDIUM]

Golang Denial Of Service Go Tuf +2
NVD GitHub
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Quick Facts

Typical Severity
MEDIUM
Category
other
Total CVEs
36822

MITRE ATT&CK

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