What is CVE-2018-1779?

CVE-2018-1779 is a high-severity vulnerability in IBM API Connect, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2018-11-20.

How severe is CVE-2018-1779?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in IBM API Connect

CVE-2018-1779

IBM API Connect 2018.1 through 2018.3.7 could allow an unauthenticated attacker to cause a denial of service due to not setting limits on JSON payload size. IBM X-Force ID: 148802.

Published 2018-11-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.025 (84.1th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.025 · newest: 0.025 · change: 0.000

Affected products

IBM API Connect — versions 2018.1, 2018.3.7
IBM API Connect

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

www.ibm.com/support/docview.wss (Patch, Vendor Advisory)
exchange.xforce.ibmcloud.com/vulnerabilities/148802 (VDB Entry, vdb-entry, Vendor Advisory)
www.securityfocus.com/bid/105991 (VDB Entry, Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2018-1779?: CVE-2018-1779 is a high-severity vulnerability in IBM API Connect, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2018-11-20.
How severe is CVE-2018-1779?: High severity. CVSS v3 base score is 7.5 out of 10.