CVE-2023-27253
HighPublic exploitA 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.
Published Mar 17, 2023 · Updated Aug 12, 2026
Key Facts
Patch immediately- CVE-2023-27253 is a high-severity vulnerability (CVSS 8.8 v3.1) affecting Pfsense (Netgate).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 90% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3.1
8.8
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
90%
Higher than 99.7% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2023-27253 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
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.
Affected Products
1 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| PfsenseNetgate | 2.7.0 | n/a |
Timeline
Publicly disclosed
Mar 17, 2023
Last updated
Aug 12, 2026
Weakness Type
- CWE-91 XML Injection (aka Blind XPath Injection)
References
- advisoryhttps://github.com/CVEProject/cvelistV5/tree/main/cves/2023/27xxx/CVE-2023-27253.json
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2023-27253
- patchhttps://github.com/pfsense/pfsense/commit/ca80d18493f8f91b21933ebd6b714215ae1e5e94
- patchhttps://redmine.pfsense.org/issues/13935
- exploitMSF pfsense_config_data_exec.rb
FAQ
Common Questions.
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.
Affected: Pfsense (Netgate) versions 2.7.0. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
Is CVE-2023-27253 Running On Your Attack Surface?
Brandefense maps vulnerabilities like this one to your internet-facing assets and tells you exactly where to patch.
Request A Demo