How severe is CVE-2011-0921?

CVE-2011-0921 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2011-0921 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 11% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-0921?

CVE-2011-0921 affects Hp Data Protector. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2011-0921?

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-2011-0921 published?

CVE-2011-0921 was published on 2011-02-09 and last updated on 2026-06-16.

CVE-2011-0921

CVE-2011-0921 is a critical-severity vulnerability in Hp Data Protector with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 11% places it in the 95th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-20.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 11% (95th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Hp Data Protector
Published: 2011-02-09
Last modified: 2026-06-16

Description

crs.exe in the Cell Manager Service in the client in HP Data Protector does not properly validate credentials associated with the hostname, domain, and username, which allows remote attackers to execute arbitrary code by sending unspecified data over TCP, related to the webreporting client, the applet domain, and the java username.

Frequently asked questions

What is CVE-2011-0921?: crs.exe in the Cell Manager Service in the client in HP Data Protector does not properly validate credentials associated with the hostname, domain, and username, which allows remote attackers to execute arbitrary code by sending unspecified data over TCP, related to the webreporting client, the applet domain, and the java username.
How severe is CVE-2011-0921?: CVE-2011-0921 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2011-0921 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 11% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-0921?: CVE-2011-0921 affects Hp Data Protector. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2011-0921?: 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-2011-0921 published?: CVE-2011-0921 was published on 2011-02-09 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:hp:data_protector:*:*:*:*:*:*:*:*

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