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Vulnerability · Published Oct 8, 2026 · Assigned by ibm

CVE-2026-14269IBM DataPower Gateway Buffer Overflow

Critical 9.8

In plain English

A critical-severity heap buffer overflow in DataPower Gateway 10.5.0 from IBM. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 42% of all known vulnerabilities).

Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.5%top 58.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

IBM DataPower Gateway 10.5.0.0 through 10.5.0.22, 10.6.1 through 10.6.6, 10.6.0.0 through 10.6.0.10, and 11.0.0.0 through 11.0.0.2 is vulnerable to a heap-based buffer overflow, caused by improper bounds checking. An unauthenticated remote attacker could overflow the buffer and execute arbitrary code on the system.

Affected products (as reported)

VendorProductVersions
IBM DataPower Gateway 10.6CD 10.6.1 – through 10.6.6
IBM DataPower Gateway 10.6.0 10.6.0.0 – through 10.6.0.10
IBM DataPower Gateway 11.0.0 11.0.0.0 – through 11.0.0.2
IBM DataPower Gateway 10.5.0 10.5.0.0 – through 10.5.0.22

Weakness: CWE-122 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References