How severe is CVE-2009-4273?

CVE-2009-4273 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2009-4273 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 18% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-4273?

CVE-2009-4273 primarily affects Systemtap. In total, 25 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-4273?

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-2009-4273 published?

CVE-2009-4273 was published on 2010-01-26 and last updated on 2026-06-16.

CVE-2009-4273

CVE-2009-4273 is a critical-severity vulnerability in Systemtap with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 18% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-94.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 18% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Systemtap
Published: 2010-01-26
Last modified: 2026-06-16

Description

stap-server in SystemTap before 1.1 allows remote attackers to execute arbitrary commands via shell metacharacters in stap command-line arguments in a request.

Frequently asked questions

What is CVE-2009-4273?: stap-server in SystemTap before 1.1 allows remote attackers to execute arbitrary commands via shell metacharacters in stap command-line arguments in a request.
How severe is CVE-2009-4273?: CVE-2009-4273 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2009-4273 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 18% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-4273?: CVE-2009-4273 primarily affects Systemtap. In total, 25 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-4273?: 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-2009-4273 published?: CVE-2009-4273 was published on 2010-01-26 and last updated on 2026-06-16.

References

Affected products (25)

cpe:2.3:a:systemtap:systemtap:*:*:*:*:*:*:*:*
cpe:2.3:a:systemtap:systemtap:0.2.2:*:*:*:*:*:*:*
cpe:2.3:a:systemtap:systemtap:0.3:*:*:*:*:*:*:*
cpe:2.3:a:systemtap:systemtap:0.4:*:*:*:*:*:*:*
cpe:2.3:a:systemtap:systemtap:0.5:*:*:*:*:*:*:*
cpe:2.3:a:systemtap:systemtap:0.5.3:*:*:*:*:*:*:*
cpe:2.3:a:systemtap:systemtap:0.5.4:*:*:*:*:*:*:*
cpe:2.3:a:systemtap:systemtap:0.5.5:*:*:*:*:*:*:*
cpe:2.3:a:systemtap:systemtap:0.5.7:*:*:*:*:*:*:*
cpe:2.3:a:systemtap:systemtap:0.5.8:*:*:*:*:*:*:*
cpe:2.3:a:systemtap:systemtap:0.5.9:*:*:*:*:*:*:*
cpe:2.3:a:systemtap:systemtap:0.5.10:*:*:*:*:*:*:*
cpe:2.3:a:systemtap:systemtap:0.5.12:*:*:*:*:*:*:*
cpe:2.3:a:systemtap:systemtap:0.5.13:*:*:*:*:*:*:*
cpe:2.3:a:systemtap:systemtap:0.5.14:*:*:*:*:*:*:*
cpe:2.3:a:systemtap:systemtap:0.6:*:*:*:*:*:*:*
cpe:2.3:a:systemtap:systemtap:0.6.2:*:*:*:*:*:*:*
cpe:2.3:a:systemtap:systemtap:0.7:*:*:*:*:*:*:*
cpe:2.3:a:systemtap:systemtap:0.7.2:*:*:*:*:*:*:*
cpe:2.3:a:systemtap:systemtap:0.8:*:*:*:*:*:*:*
cpe:2.3:a:systemtap:systemtap:0.9:*:*:*:*:*:*:*
cpe:2.3:a:systemtap:systemtap:0.9.5:*:*:*:*:*:*:*
cpe:2.3:a:systemtap:systemtap:0.9.7:*:*:*:*:*:*:*
cpe:2.3:a:systemtap:systemtap:0.9.8:*:*:*:*:*:*:*
cpe:2.3:a:systemtap:systemtap:0.9.9:*:*:*:*:*:*:*

More vulnerabilities in Systemtap

CVE-2010-0412 — High (CVSS 7.5): stap-server in SystemTap 1.1 does not properly restrict the value of the -B (aka BUILD) option, which allows attackers…
CVE-2010-4170 — High (CVSS 7.2): The staprun runtime tool in SystemTap 1.3 does not properly clear the environment before executing modprobe, which…
CVE-2009-0784 — Medium (CVSS 6.3): Race condition in the SystemTap stap tool 0.0.20080705 and 0.0.20090314 allows local users in the stapusr group to…
CVE-2012-0875 — Medium (CVSS 5.4): SystemTap 1.7, 1.6.7, and probably other versions, when unprivileged mode is enabled, allows local users to obtain…
CVE-2010-0411 — Medium (CVSS 4.9): Multiple integer signedness errors in the (1) __get_argv and (2) __get_compat_argv functions in tapset/aux_syscalls.stp…
CVE-2011-2502 — Medium (CVSS 4.4): runtime/staprun/staprun_funcs.c in the systemtap runtime tool (staprun) in SystemTap before 1.6 does not properly…

All CVEs affecting Systemtap →

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CVE-2026-10561 — Critical (CVSS 10.0): IBM Langflow OSS 1.0.0 through 1.9.3 has an vulnerability due to an improper isolation of Python execution combined…
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