How severe is CVE-2011-2921?

CVE-2011-2921 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2011-2921 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 83% (100th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-2921?

CVE-2011-2921 affects Ktsuss Project Ktsuss. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2011-2921?

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-2011-2921 published?

CVE-2011-2921 was published on 2019-11-19 and last updated on 2026-06-16.

CVE-2011-2921

CVE-2011-2921 is a critical-severity vulnerability in Ktsuss Project Ktsuss with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 83% places it in the 100th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-273.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 83% (100th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-273
Affected product: Ktsuss Project Ktsuss
Published: 2019-11-19
Last modified: 2026-06-16

Description

ktsuss versions 1.4 and prior has the uid set to root and does not drop privileges prior to executing user specified commands, which can result in command execution with root privileges.

Frequently asked questions

What is CVE-2011-2921?: ktsuss versions 1.4 and prior has the uid set to root and does not drop privileges prior to executing user specified commands, which can result in command execution with root privileges.
How severe is CVE-2011-2921?: CVE-2011-2921 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2011-2921 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 83% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-2921?: CVE-2011-2921 affects Ktsuss Project Ktsuss. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2011-2921?: 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-2011-2921 published?: CVE-2011-2921 was published on 2019-11-19 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:ktsuss_project:ktsuss:*:*:*:*:*:*:*:*

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