How severe is CVE-2021-20535?

CVE-2021-20535 has a CVSS 3.x base score of 5.4, 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 low, and availability none.

Is CVE-2021-20535 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-20535?

CVE-2021-20535 primarily affects Ibm Jazz Reporting Service. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-20535?

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

When was CVE-2021-20535 published?

CVE-2021-20535 was published on 2021-05-13 and last updated on 2026-06-17.

CVE-2021-20535

CVE-2021-20535 is a medium-severity vulnerability in Ibm Jazz Reporting Service with a CVSS 3.x base score of 5.4. 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 5.4)
CVSS v2: 5.5
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-918
Affected product: Ibm Jazz Reporting Service
Published: 2021-05-13
Last modified: 2026-06-17

Description

IBM Jazz Reporting Service 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. IBM X-Force ID: 198834.

Frequently asked questions

What is CVE-2021-20535?: IBM Jazz Reporting Service 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. IBM X-Force ID: 198834.
How severe is CVE-2021-20535?: CVE-2021-20535 has a CVSS 3.x base score of 5.4, 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 low, and availability none.
Is CVE-2021-20535 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-20535?: CVE-2021-20535 primarily affects Ibm Jazz Reporting Service. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-20535?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-20535 published?: CVE-2021-20535 was published on 2021-05-13 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:ibm:jazz_reporting_service:6.0.6.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:jazz_reporting_service:7.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:jazz_reporting_service:7.0.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:jazz_reporting_service:7.0.2:*:*:*:*:*:*:*

More vulnerabilities in Ibm Jazz Reporting Service

CVE-2019-4651 — Critical (CVSS 9.8): IBM Jazz Reporting Service (JRS) 6.0.6.1 is vulnerable to SQL injection. A remote attacker could send specially-crafted…
CVE-2016-2889 — High (CVSS 8.8): Cross-site request forgery (CSRF) vulnerability in the Report Builder and Data Collection Component (DCC) in IBM Jazz…
CVE-2016-0315 — High (CVSS 8.8): The Report Builder and Data Collection Component (DCC) in IBM Jazz Reporting Service (JRS) 5.x before 5.0.2 ifix016 and…
CVE-2015-7465 — High (CVSS 8.8): Cross-site request forgery (CSRF) vulnerability in Lifecycle Query Engine (LQE) in IBM Jazz Reporting Service (JRS) 6.0…
CVE-2016-0319 — High (CVSS 7.5): The XML parser in Lifecycle Query Engine (LQE) in IBM Jazz Reporting Service 6.0 and 6.0.1 before 6.0.1 iFix006 allows…
CVE-2015-7464 — High (CVSS 7.5): Report Builder in IBM Jazz Reporting Service (JRS) 5.x before 5.0.2-Rational-CLM-ifix011 and 6.0 before…

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