CVE-2020-4994 Denial of service in DataPower Gateway

What is CVE-2020-4994?

CVE-2020-4994 is a medium-severity denial of service vulnerability in Ibm Datapower Gateway, published on 17 May 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

IBM DataPower Gateway 10.0.1.0 through 10.0.1.4 and 2018.4.1.0 through 2018.4.1.17 could allow a remote user to cause a temporary denial of service by sending invalid HTTP requests. IBM X-Force ID: 192906.

Which versions are affected by CVE-2020-4994?

It affects 1 product.

Products include Ibm Datapower Gateway.

How do I fix CVE-2020-4994?

No fix has been published for CVE-2020-4994 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2020-4994 being exploited?

There is no known exploitation of CVE-2020-4994 in the wild and no public exploit code.

Other vulnerabilities in Ibm Datapower Gateway

• CVE-2026-14269 IBM DataPower Gateway Buffer Overflow Critical 9.8
• CVE-2026-14502 IBM DataPower Gateway Improper Authentication Critical 9.8
• CVE-2026-14991 IBM DataPower Gateway Out-of-bounds Write Critical 9.8
• CVE-2026-14992 IBM DataPower Gateway Out-of-bounds Write Critical 9.8
• CVE-2026-15762 IBM DataPower Gateway Out-of-bounds Write Critical 9.8

All Ibm Datapower Gateway vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-xqrh-rfw4-5q55.