How severe is CVE-2020-4937?

CVE-2020-4937 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-4937 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-4937?

CVE-2020-4937 affects Ibm Sterling B2b Integrator. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-4937?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-4937 published?

CVE-2020-4937 was published on 2020-11-20 and last updated on 2026-06-17.

CVE-2020-4937

CVE-2020-4937 is a high-severity vulnerability in Ibm Sterling B2b Integrator with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-327.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-327
Affected product: Ibm Sterling B2b Integrator
Published: 2020-11-20
Last modified: 2026-06-17

Description

IBM Sterling B2B Integrator Standard Edition 5.2.0.0 through 6.0.3.2 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 191814.

Frequently asked questions

What is CVE-2020-4937?: IBM Sterling B2B Integrator Standard Edition 5.2.0.0 through 6.0.3.2 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 191814.
How severe is CVE-2020-4937?: CVE-2020-4937 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-4937 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-4937?: CVE-2020-4937 affects Ibm Sterling B2b Integrator. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-4937?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-4937 published?: CVE-2020-4937 was published on 2020-11-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ibm:sterling_b2b_integrator:*:*:*:*:standard:*:*:*

More vulnerabilities in Ibm Sterling B2b Integrator

CVE-2021-39085 — Critical (CVSS 9.8): IBM Sterling B2B Integrator Standard Edition 6.0.0.0 through 6.0.3.5, 6.1.0.0 through 6.1.0.4, and 6.1.1.0 through…
CVE-2021-29903 — Critical (CVSS 9.8): IBM Sterling B2B Integrator Standard Edition 5.2.6.0 through 6.1.1.0 is vulnerable to SQL injection. A remote attacker…
CVE-2021-29798 — Critical (CVSS 9.8): IBM Sterling B2B Integrator Standard Edition 6.0.0.0 through 6.1.1.0 is vulnerable to SQL injection. A remote attacker…
CVE-2015-7450 — Critical (CVSS 9.8): Serialized-object interfaces in certain IBM analytics, business solutions, cognitive, IT infrastructure, and mobile and…
CVE-2012-5937 — Critical (CVSS 9.3): Unspecified vulnerability in the CLA2 server in IBM Gentran Integration Suite 4.3, Sterling Integrator 5.0 and 5.1, and…
CVE-2024-31903 — High (CVSS 8.8): IBM Sterling B2B Integrator Standard Edition 6.0.0.0 through 6.1.2.5 and 6.2.0.0 through 6.2.0.2 allow an attacker on…

All CVEs affecting Ibm Sterling B2b Integrator →

Other CWE-327 (Use of a Broken or Risky Cryptographic Algorithm) vulnerabilities

CVE-2026-50086 — Critical (CVSS 10.0): The Aqara IAM/SSO gateway (gw-builder.aqara.com) exposes bidirectional AES round-trups against the platform's signing…
CVE-2026-21718 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in Copeland XWEB Pro version 1.12.1 and prior, enabling any attackers to…
CVE-2025-54426 — Critical (CVSS 9.9): Polkadot Frontier is an Ethereum and EVM compatibility layer for Polkadot and Substrate. In versions prior to commit…
CVE-2024-51478 — Critical (CVSS 9.9): YesWiki is a wiki system written in PHP. Prior to 4.4.5, the use of a weak cryptographic algorithm and a hard-coded…
CVE-2026-28252 — Critical (CVSS 9.8): A Use of a Broken or Risky Cryptographic Algorithm vulnerability in Trane Tracer SC, Tracer SC+, and Tracer Concierge…
CVE-2025-13476 — Critical (CVSS 9.8): Rakuten Viber Cloak mode in Android v25.7.2.0g and Windows v25.6.0.0–v25.8.1.0 uses a static and predictable TLS…

Browse all CWE-327 (Use of a Broken or Risky Cryptographic Algorithm) vulnerabilities →