CVE-2020-4831 Weak cryptography in DataPower Gateway

What is CVE-2020-4831?

CVE-2020-4831 is a medium-severity vulnerability in Ibm Datapower Gateway, published on 12 Mar 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

IBM DataPower Gateway 10.0.0.0 through 10.0.1.0 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 189965.

Weakness: CWE-327

Which versions are affected by CVE-2020-4831?

It affects 1 product.

Products include Ibm Datapower Gateway.

How do I fix CVE-2020-4831?

No fix has been published for CVE-2020-4831 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-4831 being exploited?

There is no known exploitation of CVE-2020-4831 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-pm9v-2r47-3q48.