How severe is CVE-2021-20421?

CVE-2021-20421 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2021-20421 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-20421?

CVE-2021-20421 primarily affects Ibm Jazz Team Server. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-20421?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-20421 published?

CVE-2021-20421 was published on 2022-06-24 and last updated on 2026-06-17.

CVE-2021-20421

CVE-2021-20421 is a medium-severity vulnerability in Ibm Jazz Team Server with a CVSS 3.x base score of 4.3. 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-918.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 4.0
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-918
Affected product: Ibm Jazz Team Server
Published: 2022-06-24
Last modified: 2026-06-17

Description

IBM Jazz Team Server 6.0.6, 6.0.6.1, 7.0, 7.0.1, and 7.0.2 is vulnerable to server-side request forgery (SSRF). This may allow an authenticated attacker to send unauthorized requests from the system, potentially leading to network enumeration or facilitating other attacks.

Frequently asked questions

What is CVE-2021-20421?: IBM Jazz Team Server 6.0.6, 6.0.6.1, 7.0, 7.0.1, and 7.0.2 is vulnerable to server-side request forgery (SSRF). This may allow an authenticated attacker to send unauthorized requests from the system, potentially leading to network enumeration or facilitating other attacks.
How severe is CVE-2021-20421?: CVE-2021-20421 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2021-20421 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-20421?: CVE-2021-20421 primarily affects Ibm Jazz Team Server. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-20421?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-20421 published?: CVE-2021-20421 was published on 2022-06-24 and last updated on 2026-06-17.

References

Affected products (5)

cpe:2.3:a:ibm:jazz_team_server:6.0.6:*:*:*:*:*:*:*
cpe:2.3:a:ibm:jazz_team_server:6.0.6.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:jazz_team_server:7.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:jazz_team_server:7.0.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:jazz_team_server:7.0.2:*:*:*:*:*:*:*

More vulnerabilities in Ibm Jazz Team Server

CVE-2021-38871 — Medium (CVSS 5.4): IBM Jazz Team Server 6.0.6, 6.0.6.1, 7.0, 7.0.1, and 7.0.2 is vulnerable to cross-site scripting. This vulnerability…
CVE-2021-29865 — Medium (CVSS 5.4): IBM Jazz Team Server 6.0.6, 6.0.6.1, 7.0, 7.0.1, and 7.0.2 could allow a remote attacker to hijack the clicking action…
CVE-2021-20543 — Medium (CVSS 5.4): IBM Jazz Team Server 6.0.6, 6.0.6.1, 7.0, 7.0.1, and 7.0.2 is vulnerable to HTML injection. A remote attacker could…
CVE-2021-39043 — Medium (CVSS 5.4): IBM Jazz Team Server 6.0.6, 6.0.6.1, 7.0, 7.0.1, and 7.0.2 is vulnerable to stored cross-site scripting. This…
CVE-2021-38879 — Medium (CVSS 5.3): IBM Jazz Team Server 6.0.6, 6.0.6.1, 7.0, 7.0.1, and 7.0.2 could allow a remote attacker to obtain sensitive…
CVE-2021-20355 — Medium (CVSS 5.3): IBM Jazz Team Server 6.0.6, 6.0.6.1, 7.0, 7.0.1, and 7.0.2 could allow a remote attacker to obtain sensitive…

All CVEs affecting Ibm Jazz Team Server →

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