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CVE-2018-1977

Quick assessment

Affected

IBM DB2 for Linux, UNIX and Windows

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 DB2 for Linux是美国IBM公司的一套基于Linux平台的关系型数据库管理系统。基于Linux平台的IBM DB2 11.1版本（包括DB2 Connect Server）中的‘scalar’函数存在拒绝服务漏洞。远程攻击者可利用该漏洞造成拒绝服务。

AI Predicted 5.0 Difficulty: Easy EPSS 1.86% · P79 Updated Feb 21, 2026

Possible ATT&CK Techniques 2 AI

T1499.001 · OS Exhaustion Flood T1499 · Endpoint Denial of Service

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I. Basic Information for CVE-2018-1977

Vulnerability Information

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Vulnerability Title

N/A

Source: CVE Program / CVE List V5

Vulnerability Description

IBM DB2 for Linux, UNIX and Windows 11.1 (includes DB2 Connect Server) contains a denial of service vulnerability. A remote, authenticated DB2 user could exploit this vulnerability by issuing a specially-crafted SELECT statement with TRUNCATE function. IBM X-Force ID: 154032.

Source: CVE Program / CVE List V5

CVSS Information

N/A

Source: CVE Program / CVE List V5

Vulnerability Type

N/A

Source: CVE Program / CVE List V5

Vulnerability Title

IBM DB2 for Linux 安全漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

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
IBM	DB2 for Linux, UNIX and Windows	11.1	-

II. Public POCs for CVE-2018-1977

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2018-1977

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Vendor Advisories for CVE-2018-1977 (3)

http://www.ibm.com/support/docview.wss?uid=ibm10788089 x_refsource_CONFIRM
http://www.securityfocus.com/bid/106222 vdb-entry x_refsource_BID
https://exchange.xforce.ibmcloud.com/vulnerabilities/154032 vdb-entry x_refsource_XF

https://www.cve.org/CVERecord?id=CVE-2018-1977

IV. Related Vulnerabilities

Same product: DB2 for Linux, UNIX and Windows

Same vendor: IBM