CVE-2026-21996
Quick assessment
Affected
Oracle Corporation Oracle Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Oracle Linux是美国甲骨文（Oracle）公司的一个开放且完整的操作环境，提供虚拟化、管理和云原生计算工具以及操作系统。 Oracle Linux存在数字错误漏洞，该漏洞源于Pbuild_file_symtab中整数除零，可能导致攻击者通过恶意ELF二进制文件触发崩溃。
Possible ATT&CK Techniques 2 AI
T1499 · Endpoint Denial of Service T1499.002 · Service Exhaustion FloodAffected Version Matrix 3
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Oracle Corporation | Oracle Linux | 8 |
affected |
9 |
affected | ||
10 |
affected |
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I. Basic Information for CVE-2026-21996
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An unprivileged attacker can reliably trigger a crash of the dtrace process with a malicious ELF binary due to an integer Divide-by-Zero in Pbuild_file_symtab()
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Oracle Linux 数字错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Oracle Linux是美国甲骨文（Oracle）公司的一个开放且完整的操作环境，提供虚拟化、管理和云原生计算工具以及操作系统。 Oracle Linux存在数字错误漏洞，该漏洞源于Pbuild_file_symtab中整数除零，可能导致攻击者通过恶意ELF二进制文件触发崩溃。
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 |
|---|---|---|---|---|
| Oracle Corporation | Oracle Linux | 8 | - |
|
II. Public POCs for CVE-2026-21996
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-21996 (1)
IV. Related Vulnerabilities
V. Comments for CVE-2026-21996
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