How severe is CVE-2021-20355?

CVE-2021-20355 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2021-20355 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-20355?

CVE-2021-20355 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-2021-20355?

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

When was CVE-2021-20355 published?

CVE-2021-20355 was published on 2022-06-24 and last updated on 2026-06-17.

CVE-2021-20355

CVE-2021-20355 is a medium-severity vulnerability in Ibm Jazz Team Server with a CVSS 3.x base score of 5.3. 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-732.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-732
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 could allow a remote attacker to obtain sensitive information, caused by the failure to set the HTTPOnly flag. A remote attacker could exploit this vulnerability to obtain sensitive information from the cookie. IBM X-Force ID: 194891.

Frequently asked questions

What is CVE-2021-20355?: 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 information, caused by the failure to set the HTTPOnly flag. A remote attacker could exploit this vulnerability to obtain sensitive information from the cookie. IBM X-Force ID: 194891.
How severe is CVE-2021-20355?: CVE-2021-20355 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2021-20355 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-20355?: CVE-2021-20355 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-2021-20355?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-20355 published?: CVE-2021-20355 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:*:*:*:*:*:*:*

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