How severe is CVE-2023-27253?

CVE-2023-27253 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-27253 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 91% (100th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-27253?

CVE-2023-27253 affects Netgate Pfsense. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-27253?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-27253 published?

CVE-2023-27253 was published on 2023-03-17 and last updated on 2026-06-17.

CVE-2023-27253

CVE-2023-27253 is a high-severity vulnerability in Netgate Pfsense with a CVSS 3.x base score of 8.8. Its EPSS exploit-prediction score of 91% places it in the 100th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-91.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 91% (100th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-91
Affected product: Netgate Pfsense
Published: 2023-03-17
Last modified: 2026-06-17

Description

A command injection vulnerability in the function restore_rrddata() of Netgate pfSense v2.7.0 allows authenticated attackers to execute arbitrary commands via manipulating the contents of an XML file supplied to the component config.xml.

Frequently asked questions

What is CVE-2023-27253?: A command injection vulnerability in the function restore_rrddata() of Netgate pfSense v2.7.0 allows authenticated attackers to execute arbitrary commands via manipulating the contents of an XML file supplied to the component config.xml.
How severe is CVE-2023-27253?: CVE-2023-27253 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-27253 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 91% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-27253?: CVE-2023-27253 affects Netgate Pfsense. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-27253?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-27253 published?: CVE-2023-27253 was published on 2023-03-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:netgate:pfsense:2.7.0:*:*:*:*:*:*:*

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