All vulnerabilities
CVE-2026-16340

IBM DataPower Gateway Out-of-bounds Write

IBM DataPower Gateway 10.6CDNetwork & edge
Open in ThreatlineRecord JSON
CVSS
9.8Critical
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.49%Chance of exploitation activity in the next 30 days, higher than 41% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published8 Oct 2026Updated 9 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

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 could allow a remote attacker to execute arbitrary code due to an out-of-bounds write in the RFC2047 encoded-word parser.

Text from CVE List

Affected versions 4

  • DataPower Gateway 10.6CDaffected: 10.6.1 through 10.6.6CVE List
  • DataPower Gateway 10.6.0affected: 10.6.0.0 through 10.6.0.10CVE List
  • DataPower Gateway 11.0.0affected: 11.0.0.0 through 11.0.0.2CVE List
  • DataPower Gateway 10.5.0affected: 10.5.0.0 through 10.5.0.22CVE List

References 1