CVE-2023-40594— Denial of Service (DoS) via the ‘printf’ Search Function
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I. Basic Information for CVE-2023-40594
Vulnerability Information
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Vulnerability Title
Denial of Service (DoS) via the ‘printf’ Search Function
Source: NVD (National Vulnerability Database)
Vulnerability Description
In Splunk Enterprise versions lower than 8.2.12, 9.0.6, and 9.1.1, an attacker can use the `printf` SPL function to perform a denial of service (DoS) against the Splunk Enterprise instance.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Splunk 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Splunk是美国Splunk公司的一套数据收集分析软件。该软件主要用于收集、索引和分析及其所产生的数据，包括所有IT系统和基础结构（物理、虚拟机和云）生成的数据。 Splunk Enterprise 存在安全漏洞，该漏洞源于通过 printf 函数可以导致拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Splunk | Splunk Enterprise | 8.2 ~ 8.2.12 | - | |
| Splunk | Splunk Cloud | - ~ 9.0.2303.100 | - |
II. Public POCs for CVE-2023-40594
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Splunk · 2023-08-30 · 8 CVEs total
| CVE-2023-40595 | 8.8 HIGH | Remote Code Execution via Serialized Session Payload |
| CVE-2023-4571 | 8.6 HIGH | Unauthenticated Log Injection in Splunk IT Service Intelligence (ITSI) |
| CVE-2023-40598 | 8.5 HIGH | Command Injection in Splunk Enterprise Using External Lookups |
| CVE-2023-40592 | 8.4 HIGH | Reflected Cross-site Scripting (XSS) on "/app/search/table" web endpoint |
| CVE-2023-40597 | 7.8 HIGH | Absolute Path Traversal in Splunk Enterprise Using runshellscript.py |
| CVE-2023-40596 | 7.0 HIGH | Splunk Enterprise on Windows Privilege Escalation due to Insecure OPENSSLDIR Build Definit |
| CVE-2023-40593 | 6.3 MEDIUM | Denial of Service (DoS) in Splunk Enterprise Using a Malformed SAML Request |
IV. Related Vulnerabilities
Same product: Splunk Enterprise
- CVE-2026-20203
Improper Access Control in Data Model Acceleration in Splunk - CVE-2026-20204
Improper Handling and Insufficient Isolation of Specific Tem - CVE-2026-20202
Improper Input Validation during User Account Creation in Sp - CVE-2026-20163
Remote Command Execution (RCE) through the '/splunkd/__uploa - CVE-2026-20162
Stored Cross-Site Scripting (XSS) through Path Traversal in
Same vendor: Splunk
- CVE-2026-20205
Sensitive Information Disclosure in ''_internal'' index in S - CVE-2026-20203
Improper Access Control in Data Model Acceleration in Splunk - CVE-2026-20204
Improper Handling and Insufficient Isolation of Specific Tem - CVE-2026-20202
Improper Input Validation during User Account Creation in Sp - CVE-2026-20163
Remote Command Execution (RCE) through the '/splunkd/__uploa
Same weakness: CWE-400
- CVE-2026-8187
Open5GS UPF gtp-path.c _gtpv1_u_recv_cb resource consumption - CVE-2026-42343
FastGPT: Uncontrolled Resource Consumption leading to Sandbo - CVE-2026-42212
SolidCAM-GPPL-IDE: XML External Entity (XXE) and billion-lau - CVE-2026-32686
Unbounded exponent in decimal enables unauthenticated DoS - CVE-2026-20188
Cisco Crosswork Network Controller and Cisco Network Service
V. Comments for CVE-2023-40594
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