Denial of Service
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 (40043)
SOPlanning 1.53.00 is vulnerable to a directory traversal issue in /process/upload.php. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.
CryptoLib provides a software-only solution using the CCSDS Space Data Link Security Protocol - Extended Procedures (SDLS-EP) to secure communications between a spacecraft running the core Flight. Rated high severity (CVSS 8.9), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
CryptoLib provides a software-only solution using the CCSDS Space Data Link Security Protocol - Extended Procedures (SDLS-EP) to secure communications between a spacecraft running the core Flight. Rated high severity (CVSS 8.9), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
CryptoLib provides a software-only solution using the CCSDS Space Data Link Security Protocol - Extended Procedures (SDLS-EP) to secure communications between a spacecraft running the core Flight. Rated high severity (CVSS 8.9), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
CryptoLib provides a software-only solution using the CCSDS Space Data Link Security Protocol - Extended Procedures (SDLS-EP) to secure communications between a spacecraft running the core Flight. Rated medium severity (CVSS 5.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
CryptoLib provides a software-only solution using the CCSDS Space Data Link Security Protocol - Extended Procedures (SDLS-EP) to secure communications between a spacecraft running the core Flight. Rated high severity (CVSS 8.9), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
Uptime Kuma >== 1.23.0 has a ReDoS vulnerability, specifically when an administrator creates a notification through the web service. Rated medium severity (CVSS 6.0), this vulnerability is remotely exploitable. No vendor patch available.
A buffer overflow in the GuitarPro1::read function of MuseScore Studio v4.3.2 allows attackers to to execute arbitrary code or cause a Denial of Service (DoS) via opening a crafted GuitarPro file. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Expr is an expression language and expression evaluation for Go. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
EDK2 contains a vulnerability in BIOS where a user may cause an Integer Overflow or Wraparound by network means. Rated low severity (CVSS 3.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
The HP LaserJet MFP M232-M237 Printer Series may be vulnerable to a denial of service attack when a specially crafted request message is sent via Internet Printing Protocol (IPP). Rated medium severity (CVSS 6.9), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Azle is a WebAssembly runtime for TypeScript and JavaScript on ICP. Rated high severity (CVSS 8.7), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A stack overflow vulnerability exists in the libexpat library due to the way it handles recursive entity expansion in XML documents. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
The Eco Nature - Environment & Ecology WordPress Theme theme for WordPress is vulnerable to unauthorized modification of data that can lead to a denial of service due to a missing capability check on. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Tenda RX3 US_RX3V1.0br_V16.03.13.11_multi_TDE01 is vulnerable to buffer overflow via the schedStartTime and schedEndTime parameters at /goform/saveParentControlInfo. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Tenda RX3 US_RX3V1.0br_V16.03.13.11_multi_TDE01 is vulnerable to Buffer Overflow via the list parameter at /goform/setPptpUserList. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Tenda RX3 US_RX3V1.0br_V16.03.13.11_multi_TDE01 is vulnerable to Buffer Overflow via the list parameter at /goform/SetVirtualServerCfg. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Tenda RX3 US_RX3V1.0br_V16.03.13.11_multi_TDE01 is vulnerable to Buffer Overflow via the time and timeZone parameters at /goform/SetSysTimeCfg. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Tenda RX3 US_RX3V1.0br_V16.03.13.11_multi_TDE01 is vulnerable to Buffer Overflow via the deviceId parameter at /goform/saveParentControlInfo. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Tenda RX3 US_RX3V1.0br_V16.03.13.11_multi_TDE01 is vulnerable to Buffer Overflow via the firewallEn parameter at /goform/SetFirewallCfg. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Tenda RX3 US_RX3V1.0br_V16.03.13.11_multi_TDE01 is vulnerable to Buffer Overflow via the startIp and endIp parameters at /goform/SetPptpServerCfg. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
The Download Manager plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 3.3.08 via the 'wpdm_newfile' action. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. This Path Traversal vulnerability could allow attackers to access files and directories outside the intended path.
An issue was discovered in GitLab EE affecting all versions starting with 12.3 before 17.7.7, 17.8 prior to 17.8.5, and 17.9 prior to 17.9.2. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
An issue was discovered in GitLab CE/EE affecting all versions before 17.7.7, 17.8 prior to 17.8.5, and 17.9 prior to 17.9.2. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
ruby-saml provides security assertion markup language (SAML) single sign-on (SSO) for Ruby. Rated high severity (CVSS 7.7), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
A Denial of Service (DoS) vulnerability in Palo Alto Networks PAN-OS software causes the firewall to unexpectedly reboot when processing a specially crafted LLDP frame sent by an unauthenticated. Rated medium severity (CVSS 6.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A Denial of Service (DoS) vulnerability in the GlobalProtect feature of Palo Alto Networks PAN-OS software enables an unauthenticated attacker to render the service unavailable by sending a large. Rated high severity (CVSS 8.2), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
An issue was discovered in Open5GS v2.7.2. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
SoftEtherVPN 5.02.5187 is vulnerable to Use after Free in the Command.c file via the CheckNetworkAcceptThread function. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Memory Leak vulnerability in SoftEtherVPN 5.02.5187 allows an attacker to cause a denial of service via the UnixMemoryAlloc function. Rated medium severity (CVSS 5.6), this vulnerability is remotely exploitable, no authentication required. Public exploit code available and no vendor patch available.
A vulnerability in the Internet Key Exchange version 2 (IKEv2) function of Cisco IOS XR Software could allow an unauthenticated, remote attacker to prevent an affected device from processing any. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A vulnerability in the Layer 3 multicast feature of Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers, ASR 9902 Compact High-Performance Routers, and ASR 9903 Compact. Rated high severity (CVSS 8.6), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A vulnerability in the IPv4 access control list (ACL) feature and quality of service (QoS) policy feature of Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers, ASR 9902. Rated high severity (CVSS 8.6), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A vulnerability in the handling of specific packets that are punted from a line card to a route processor in Cisco IOS XR Software Release 7.9.2 could allow an unauthenticated, adjacent attacker to. Rated high severity (CVSS 7.4), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
A vulnerability in confederation implementation for the Border Gateway Protocol (BGP) in Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS). Rated high severity (CVSS 8.6), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
A flaw was found in Smallrye, where smallrye-fault-tolerance is vulnerable to an out-of-memory (OOM) issue. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
IBM App Connect Enterprise Certified Container 7.2, 8.0, 8.1, 8.2, 9.0, 9.1, 9.2, 10.0, 10.1, 11.0, 11.1, 11.2, 11.3, 11.4, 11.5, 11.6, 12.0, 12.1, 12.2, 12.3, 12.4, 12.5, 12.6, 12.7, and 12.8 could. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
An integer underflow during deserialization may allow any unauthenticated user to read out of bounds heap memory. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
In the Linux kernel, the following vulnerability has been resolved: powerpc/code-patching: Fix KASAN hit by not flagging text patching area as VM_ALLOC Erhard reported the following KASAN hit while. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. This Allocation of Resources Without Limits vulnerability could allow attackers to exhaust system resources through uncontrolled allocation.
In the Linux kernel, the following vulnerability has been resolved: tcp: drop secpath at the same time as we currently drop dst Xiumei reported hitting the WARN in xfrm6_tunnel_net_exit while running. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. This NULL Pointer Dereference vulnerability could allow attackers to crash the application by dereferencing a null pointer.
In the Linux kernel, the following vulnerability has been resolved: net/sched: cls_api: fix error handling causing NULL dereference tcf_exts_miss_cookie_base_alloc() calls xa_alloc_cyclic() which can. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. This NULL Pointer Dereference vulnerability could allow attackers to crash the application by dereferencing a null pointer.
In the Linux kernel, the following vulnerability has been resolved: sockmap, vsock: For connectible sockets allow only connected sockmap expects all vsocks to have a transport assigned, which is. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. This NULL Pointer Dereference vulnerability could allow attackers to crash the application by dereferencing a null pointer.
In the Linux kernel, the following vulnerability has been resolved: net: Add rx_skb of kfree_skb to raw_tp_null_args[]. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. This NULL Pointer Dereference vulnerability could allow attackers to crash the application by dereferencing a null pointer.
In the Linux kernel, the following vulnerability has been resolved: nvmet: Fix crash when a namespace is disabled The namespace percpu counter protects pending I/O, and we can only safely diable the. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.
In the Linux kernel, the following vulnerability has been resolved: nfp: bpf: Add check for nfp_app_ctrl_msg_alloc() Add check for the return value of nfp_app_ctrl_msg_alloc() in nfp_bpf_cmsg_alloc(). Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. This NULL Pointer Dereference vulnerability could allow attackers to crash the application by dereferencing a null pointer.
In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: stream-ipc: Check for cstream nullity in sof_ipc_msg_data() The nullity of sps->cstream should be checked similarly as. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. This NULL Pointer Dereference vulnerability could allow attackers to crash the application by dereferencing a null pointer.
In the Linux kernel, the following vulnerability has been resolved: acct: perform last write from workqueue In [1] it was reported that the acct(2) system call can be used to trigger NULL deref in. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. This NULL Pointer Dereference vulnerability could allow attackers to crash the application by dereferencing a null pointer.
In the Linux kernel, the following vulnerability has been resolved: mtd: spi-nor: sst: Fix SST write failure 'commit 18bcb4aa54ea ("mtd: spi-nor: sst: Factor out common write operation to. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.
In the Linux kernel, the following vulnerability has been resolved: smb: client: Add check for next_buffer in receive_encrypted_standard() Add check for the return value of cifs_buf_get() and. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. This NULL Pointer Dereference vulnerability could allow attackers to crash the application by dereferencing a null pointer.
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix double accounting race when btrfs_run_delalloc_range() failed [BUG] When running btrfs with block size (4K) smaller than. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. This Allocation of Resources Without Limits vulnerability could allow attackers to exhaust system resources through uncontrolled allocation.
Substance3D - Modeler versions 1.15.0 and earlier are affected by a Use After Free 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. [CVSS 7.8 HIGH]
Substance3D - Modeler versions 1.15.0 and earlier are affected by a NULL Pointer Dereference vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denial-of-service condition. [CVSS 5.5 MEDIUM]
Babel is a compiler for writing next generation JavaScript. When using versions of Babel prior to 7.26.10 and 8.0.0-alpha.17 to compile regular expression named capturing groups, Babel will generate a polyfill for the `.replace` method that has quadratic complexity on some specific replacement pattern strings (i.e. the second argument passed to `.replace`). Generated code is vulnerable if all t...
NVIDIA Riva contains a vulnerability where a user could cause an improper access control issue. A successful exploit of this vulnerability might lead to data tampering or denial of service. [CVSS 6.5 MEDIUM]
NVIDIA Riva contains a vulnerability where a user could cause an improper access control issue. A successful exploit of this vulnerability might lead to escalation of privileges, data tampering, denial of service, or information disclosure. [CVSS 7.3 HIGH]
InDesign Desktop versions ID20.1, ID19.5.2 and earlier are affected by a NULL Pointer Dereference vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denial-of-service condition. [CVSS 5.5 MEDIUM]
InDesign Desktop versions ID20.1, ID19.5.2 and earlier are affected by a NULL Pointer Dereference vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denial-of-service condition. [CVSS 5.5 MEDIUM]
Acrobat Reader versions 24.001.30225, 20.005.30748, 25.001.20428 and earlier are affected by a Use After Free vulnerability that could result in arbitrary code execution in the context of the current user. [CVSS 7.8 HIGH]
Illustrator versions 29.2.1, 28.7.4 and earlier are affected by a NULL Pointer Dereference vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denial of service condition. [CVSS 5.5 MEDIUM]
Acrobat Reader versions 24.001.30225, 20.005.30748, 25.001.20428 and earlier are affected by a Use After Free vulnerability that could result in arbitrary code execution in the context of the current user. [CVSS 7.8 HIGH]
Acrobat Reader versions 24.001.30225, 20.005.30748, 25.001.20428 and earlier are affected by a Use After Free vulnerability that could result in arbitrary code execution in the context of the current user. [CVSS 7.8 HIGH]
Use after free in some Zoom Workplace Apps may allow an authenticated user to conduct an escalation of privilege via network access. [CVSS 8.5 HIGH]
Incorrect behavior order in some Zoom Workplace App versions up to 6.3.0 contains a vulnerability that allows attackers to an authenticated user to conduct a denial of service via network access (CVSS 7.1).
Use after free in Microsoft Office Access allows an unauthorized attacker to execute code locally. [CVSS 7.8 HIGH]
Use after free in Microsoft Office allows an unauthorized attacker to execute code locally. [CVSS 7.8 HIGH]
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. [CVSS 7.8 HIGH]
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. [CVSS 7.8 HIGH]
Use after free in Microsoft Office allows an unauthorized attacker to execute code locally. [CVSS 7.8 HIGH]
Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally. [CVSS 7.8 HIGH]
Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally. [CVSS 7.0 HIGH]
Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally. [CVSS 7.8 HIGH]
Use after free in Microsoft Local Security Authority Server (lsasrv) allows an authorized attacker to elevate privileges locally. [CVSS 7.8 HIGH]
Use after free in DNS Server allows an unauthorized attacker to execute code over a network. [CVSS 8.1 HIGH]
Use after free in Microsoft Streaming Service allows an authorized attacker to elevate privileges locally. [CVSS 7.8 HIGH]
Insufficient verification of data authenticity in some Zoom Workplace Apps may allow an unprivileged user to conduct a denial of service via network access. [CVSS 6.5 MEDIUM]
The Spreadsheet view is vulnerable to a XSS attack, where a remote unauthorised attacker can read a limited amount of values or DoS the affected spreadsheet. Disclosure of secrets or other system settings is not affected as well as other spreadsheets still work as expected. [CVSS 6.1 MEDIUM]
An issue was discovered in Datalust Seq versions up to 2024.3.13545. is affected by uncontrolled recursion (CVSS 5.7).
IBM Common Cryptographic Architecture 7.0.0 versions up to 7.5.51 is affected by out-of-bounds write (CVSS 6.5).
This issue was addressed through improved state management. This issue is fixed in macOS Ventura 13.1, watchOS 9.2, iOS 16.2 and iPadOS 16.2. [CVSS 5.5 MEDIUM]
A double free issue was addressed with improved memory management. This issue is fixed in macOS Ventura 13.1, watchOS 9.2, iOS 16.2 and iPadOS 16.2, tvOS 16.2. [CVSS 7.8 HIGH]
there is a possible way to crash the modem due to a missing null check. This could lead to remote denial of service with no additional execution privileges needed. [CVSS 5.1 MEDIUM]
A clickjacking issue was addressed with improved out-of-process view handling. This issue is fixed in iOS 18 and iPadOS 18, macOS Sequoia 15. [CVSS 2.8 LOW]
The issue was addressed with improved memory handling. This issue is fixed in iOS 18 and iPadOS 18, macOS Sequoia 15. [CVSS 7.5 HIGH]
The issue was addressed with improved checks. This issue is fixed in watchOS 11, macOS Sequoia 15, Safari 18, visionOS 2, iOS 18 and iPadOS 18, tvOS 18. [CVSS 5.5 MEDIUM]
This issue was addressed by restricting options offered on a locked device. This issue is fixed in iOS 17.7 and iPadOS 17.7, iOS 18 and iPadOS 18, macOS Sequoia 15. [CVSS 2.4 LOW]
An issue in redoxOS relibc before commit 98aa4ea5 allows a local attacker to cause a denial of service via the round_up_to_page funciton. [CVSS 5.5 MEDIUM]
picklescan before 0.0.23 is vulnerable to a ZIP archive manipulation attack that causes it to crash when attempting to extract and scan PyTorch model archives. By modifying the filename in the ZIP header while keeping the original filename in the directory listing, an attacker can make PickleScan raise a BadZipFile error. However, PyTorch's more forgiving ZIP implementation still allows the mod...
A vulnerability classified as problematic was found in Thinkware Car Dashcam F800 Pro up to 20250226. Rated low severity (CVSS 2.3), this vulnerability is no authentication required. Public exploit code available and no vendor patch available.
MariaDB Server 10.10 through 10.11.* and 11.0 through 11.4.* crashes in JOIN::fix_all_splittings_in_plan. Rated medium severity (CVSS 4.9), this vulnerability is remotely exploitable, low attack complexity.
MariaDB Server 10.4 through 10.5.*, 10.6 through 10.6.*, 10.7 through 10.11.*, 11.0 through 11.0.*, and 11.1 through 11.4.* crashes in Item_direct_view_ref::derived_field_transformer_for_where. Rated medium severity (CVSS 4.9), this vulnerability is remotely exploitable, low attack complexity.