How severe is CVE-2009-1669?

CVE-2009-1669 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2009-1669 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-1669?

CVE-2009-1669 affects Smarty. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2009-1669?

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-2009-1669 published?

CVE-2009-1669 was published on 2009-05-18 and last updated on 2026-06-16.

CVE-2009-1669

CVE-2009-1669 is a critical-severity vulnerability in Smarty with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 14% places it in the 96th 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: 14% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Smarty
Published: 2009-05-18
Last modified: 2026-06-16

Description

The smarty_function_math function in libs/plugins/function.math.php in Smarty 2.6.22 allows context-dependent attackers to execute arbitrary commands via shell metacharacters in the equation attribute of the math function. NOTE: some of these details are obtained from third party information.

Frequently asked questions

What is CVE-2009-1669?: The smarty_function_math function in libs/plugins/function.math.php in Smarty 2.6.22 allows context-dependent attackers to execute arbitrary commands via shell metacharacters in the equation attribute of the math function. NOTE: some of these details are obtained from third party information.
How severe is CVE-2009-1669?: CVE-2009-1669 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2009-1669 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-1669?: CVE-2009-1669 affects Smarty. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2009-1669?: 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-2009-1669 published?: CVE-2009-1669 was published on 2009-05-18 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:smarty:smarty:2.6.22:*:*:*:*:*:*:*

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