How severe is CVE-2021-29715?

CVE-2021-29715 has a CVSS 3.x base score of 9.1, rated critical 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 high.

Is CVE-2021-29715 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-29715?

CVE-2021-29715 affects Ibm Api Connect. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-29715?

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

When was CVE-2021-29715 published?

CVE-2021-29715 was published on 2021-08-26 and last updated on 2026-06-17.

CVE-2021-29715

CVE-2021-29715 is a critical-severity vulnerability in Ibm Api Connect with a CVSS 3.x base score of 9.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
CVSS v2: 6.4
EPSS exploit prediction: 2% (74th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Ibm Api Connect
Published: 2021-08-26
Last modified: 2026-06-17

Description

IBM API Connect 5.0.0.0 through 5.0.8.11 could alllow a remote user to obtain sensitive information or conduct denial of serivce attacks due to open ports. IBM X-Force ID: 201018.

Frequently asked questions

What is CVE-2021-29715?: IBM API Connect 5.0.0.0 through 5.0.8.11 could alllow a remote user to obtain sensitive information or conduct denial of serivce attacks due to open ports. IBM X-Force ID: 201018.
How severe is CVE-2021-29715?: CVE-2021-29715 has a CVSS 3.x base score of 9.1, rated critical 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 high.
Is CVE-2021-29715 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-29715?: CVE-2021-29715 affects Ibm Api Connect. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-29715?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-29715 published?: CVE-2021-29715 was published on 2021-08-26 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 →