How severe is CVE-2020-4452?

CVE-2020-4452 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-2020-4452 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-2020-4452?

CVE-2020-4452 affects Ibm Api Connect. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-4452?

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-2020-4452 published?

CVE-2020-4452 was published on 2020-06-29 and last updated on 2026-06-17.

CVE-2020-4452

CVE-2020-4452 is a high-severity vulnerability in Ibm Api Connect 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 Api Connect
Published: 2020-06-29
Last modified: 2026-06-17

Description

IBM API Connect V2018.4.1.0 through 2018.4.1.11 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 181324.

Frequently asked questions

What is CVE-2020-4452?: IBM API Connect V2018.4.1.0 through 2018.4.1.11 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 181324.
How severe is CVE-2020-4452?: CVE-2020-4452 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-2020-4452 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-2020-4452?: CVE-2020-4452 affects Ibm Api Connect. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-4452?: 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-2020-4452 published?: CVE-2020-4452 was published on 2020-06-29 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ibm:api_connect:*:*:*:*:*:*:*:*

More vulnerabilities in Ibm Api Connect

CVE-2019-4202 — Critical (CVSS 10.0): IBM API Connect 5.0.0.0 and 5.0.8.6 Developer Portal is vulnerable to command injection. An attacker with a specially…
CVE-2025-13915 — Critical (CVSS 9.8): IBM API Connect 10.0.8.0 through 10.0.8.5, and 10.0.11.0 could allow a remote attacker to bypass authentication…
CVE-2021-29772 — Critical (CVSS 9.8): IBM API Connect 5.0.0.0 through 5.0.8.11 could allow a user to potentially inject code due to unsanitized user input.…
CVE-2019-4203 — Critical (CVSS 9.8): IBM API Connect 5.0.0.0 and 5.0.8.6 Developer Portal can be exploited by app developers to download arbitrary files…
CVE-2019-4008 — Critical (CVSS 9.8): API Connect V2018.1 through 2018.4.1.1 is impacted by access token leak. Authorization tokens in some URLs can result…
CVE-2018-1469 — Critical (CVSS 9.8): IBM API Connect Developer Portal 5.0.0.0 through 5.0.8.2 could allow an unauthenticated attacker to execute system…

All CVEs affecting Ibm Api Connect →

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 →