How severe is CVE-2020-4771?

CVE-2020-4771 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-2020-4771 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-4771?

CVE-2020-4771 affects Ibm Spectrum Protect Operations Center. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-4771?

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

When was CVE-2020-4771 published?

CVE-2020-4771 was published on 2020-11-23 and last updated on 2026-06-17.

CVE-2020-4771

CVE-2020-4771 is a medium-severity vulnerability in Ibm Spectrum Protect Operations Center 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-287.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 2% (72nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Ibm Spectrum Protect Operations Center
Published: 2020-11-23
Last modified: 2026-06-17

Description

IBM Spectrum Protect Operations Center 8.1.0.000 through 8.1.10.and 7.1.0.000 through 7.1.11 could allow a remote attacker to obtain sensitive information, caused by improper authentication of a websocket endpoint. By using known tools to subscribe to the websocket event stream, an attacker could exploit this vulnerability to obtain sensitive information. IBM X-Force ID: 188993.

Frequently asked questions

What is CVE-2020-4771?: IBM Spectrum Protect Operations Center 8.1.0.000 through 8.1.10.and 7.1.0.000 through 7.1.11 could allow a remote attacker to obtain sensitive information, caused by improper authentication of a websocket endpoint. By using known tools to subscribe to the websocket event stream, an attacker could exploit this vulnerability to obtain sensitive information. IBM X-Force ID: 188993.
How severe is CVE-2020-4771?: CVE-2020-4771 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-2020-4771 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-4771?: CVE-2020-4771 affects Ibm Spectrum Protect Operations Center. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-4771?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-4771 published?: CVE-2020-4771 was published on 2020-11-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ibm:spectrum_protect_operations_center:*:*:*:*:*:*:*:*

More vulnerabilities in Ibm Spectrum Protect Operations Center

CVE-2022-22485 — Critical (CVSS 9.8): In some cases, an unsuccessful attempt to log into IBM Spectrum Protect Operations Center 8.1.0.000 through 8.1.14.000…
CVE-2020-4693 — Critical (CVSS 9.8): IBM Spectrum Protect Operations Center 7.1.0.000 through 7.1.10 and 8.1.0.000 through 8.1.9 may allow an attacker to…
CVE-2019-4087 — Critical (CVSS 9.8): IBM Spectrum Protect Servers 7.1 and 8.1 and Storage Agents are vulnerable to a stack-based buffer overflow, caused by…
CVE-2022-22346 — High (CVSS 8.8): IBM Spectrum Protect Operations Center 8.1.0.000 through 8.1.13.xxx is vulnerable to cross-site request forgery which…
CVE-2020-4955 — High (CVSS 8.0): IBM Spectrum Protect Operations Center 7.1 and 8.1could allow a remote attacker to execute arbitrary code on the…
CVE-2019-4088 — High (CVSS 7.8): IBM Spectrum Protect Servers 7.1 and 8.1 and Storage Agents could allow a local attacker to gain elevated privileges on…

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Other CWE-287 (Improper Authentication) vulnerabilities

CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-46389 — Critical (CVSS 10.0): UDS Identity Config builds the Keycloak configuration image (realm, plugins, theme, truststore, JARs) consumed by UDS…
CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

Browse all CWE-287 (Improper Authentication) vulnerabilities →