Patchfirst
CVE-2026-16340 Critical · 9.8 EPSS 0.5%

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…

IBM · DataPower Gateway 10.6CD

Summary

IBM DataPower Gateway (10.5.0.x, 10.6.x and 11.0.0.x builds listed in the advisory) contains an out-of-bounds write flaw in its RFC2047 encoded-word parser. An unauthenticated remote attacker with network access can trigger the memory corruption without any user interaction or non-default configuration, which could lead to arbitrary code execution.

Official description · NVD

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.

Breakdown
17.8 / 100
Exploited
Not confirmed
Reports
0
Tactics
0/15

Disclosed on 8 Oct 2026. No public exploit code or confirmed exploitation is recorded.

techniques

No techniques linked

No ATT&CK techniques are linked to this CVE yet. MITRE CTID has not mapped it, and no report passage in the corpus ties it to a technique.

What security researchers reported

Not named in any threat report yet

Also mentioned in 12 community threat pulses (AlienVault OTX)

Weaker evidence

Pulses are indicator collections that anyone can publish. A mention is not confirmation of exploitation.

References

1 link, grouped by NVD tag
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