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CVE-2026-16159

HIGH 8.6

Published 2026-10-08 · Last modified 2026-10-08

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 obtain sensitive information and cause a denial of service due to an out-of-bounds write.

ELEVATED IMPACT

Severe if exploited (CVSS 8.6), but no known exploitation and low modeled probability. Patch on a normal cadence.

Exploitation likelihood

0.3%chance of exploitation in 30 days · 19th percentile

○ In CISA KEV ○ Public exploit / PoC

Impact if exploited

8.6CVSS 3.1 · HIGH

  • ConfidentialityLow
  • IntegrityLow
  • AvailabilityHigh

What an attacker needs

  • ✓Access: Reachable over the network — no local access needed
  • ✓Privileges: No account or privileges required
  • ✓User interaction: No user interaction needed
  • ✓Complexity: No special conditions — reliably repeatable

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept & exploit code

Test against your own equipment

curl -s https://vulnpedia.com/cve/CVE-2026-16159/poc.jsonMachine-readable PoC index for this CVE (for automation).

Listed for defensive triage, patch verification, and authorized testing on systems you own. Machine-readable: /cve/CVE-2026-16159/poc.json

Affected

Vendors Ibm

Products Datapower Gateway 10.6cd Datapower Gateway 10.6.0 Datapower Gateway 11.0.0 Datapower Gateway 10.5.0 Datapower Gateway

Weakness (CWE)

  • CWE-787: Out-of-bounds Write

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

Known Affected Software Configurations

VendorProductVersion range
IbmDatapower Gateway≥ 10.5.0.0 and < 10.5.0.23
IbmDatapower Gateway≥ 10.6.0.0 and < 10.6.0.11
IbmDatapower Gateway≥ 10.6.1.0 and < 11.0.0.3
IbmDatapower Gateway≥ 11.0.0.0 and < 11.0.0.3

All CVSS metrics

  • HIGH 8.6 v3.1 · CNA Primary
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
  • HIGH 8.6 v3.1 · NVD Secondary
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

References

Patches & mitigations

Sources: NVD · CVE.org · EPSS