CVE-2026-93888— IBM Sterling Connect:Direct for Unix Buffer Overflow
Quick assessment
Affected
IBM Sterling Connect Direct for Unix
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.
IBM Sterling Connect Direct for Unix 6.4.0.0 至 6.4.0.6 以及 6.3.0.0 至 6.3.0.7 版本中的 工具存在代码注入漏洞，原因是未对用户提供输入进行充分验证。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-93888
Vulnerability Information
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Vulnerability Title
IBM Sterling Connect:Direct for Unix Buffer Overflow
Source: CVE Program / CVE List V5
Vulnerability Description
IBM Sterling Connect Direct for Unix 6.4.0.0 through 6.4.0.6 and 6.3.0.0 through 6.3.0.7 apnotify utility is vulnerable to a code injection due to insufficient validation of user input.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| IBM | Sterling Connect Direct for Unix | 6.4.0.0 ~ 6.4.0.6 |
cpe:2.3:a:ibm:sterling_connect_direct:6.4.0.0:*:*:*:*:unix:*:*
|
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II. Public POCs for CVE-2026-93888
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2026-93888 (1)
Same Patch Batch · IBM · 2026-10-20 · 11 CVEs total
| CVE-2026-81212 | 10.0 CRITICAL | DataStage on Cloud Pak for Data Improper Authorization |
| CVE-2026-92559 | 9.8 CRITICAL | IBM App Connect Enterprise is vulnerable to a credential exposure |
| CVE-2026-76587 | 8.8 HIGH | IBM Planning Analytics Buffer Overflow |
| CVE-2026-93441 | 8.6 HIGH | IBM QRadar SIEM HTTP Receiver protocol is vulnerable to a denial of service |
| CVE-2026-93442 | 8.2 HIGH | IBM QRadar SIEM Out-of-bounds Read |
| CVE-2026-82891 | 8.1 HIGH | IBM Guardium Data Protection is affected by a security vulnerability |
| CVE-2026-87800 | 6.8 MEDIUM | IBM Cyber Fraud includes components with multiple known vulnerabilities |
| CVE-2026-93744 | 6.5 MEDIUM | IBM i Improper Authentication |
| CVE-2026-94402 | 6.1 MEDIUM | IBM vulnerable to cross-site scripting (XSS) via unsanitized title truncation |
| CVE-2026-9825 | 3.7 LOW | IBM Cyber Fraud Reachable Assertion |
IV. Related Vulnerabilities
Same vendor: IBM
-
CVE-2026-76587
IBM Planning Analytics Buffer Overflow -
CVE-2026-9825
IBM Cyber Fraud Reachable Assertion -
CVE-2026-81212
DataStage on Cloud Pak for Data Improper Authorization -
CVE-2026-82891
IBM Guardium Data Protection is affected by a security vulne -
CVE-2026-87800
IBM Cyber Fraud includes components with multiple known vuln
V. Comments for CVE-2026-93888
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