CVE-2023-27253

CRITICALNVD 8.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because EPSS predicts 90% probability of exploitation within the next 30 days (top 0.2% of all CVEs). NVD baseline CVSS 8.8 retained for reference. Confidence: see factors.

Triggered by: EPSS exploit prediction ≥85%
Sources: epss, ghsa, nvd
Weaponized
9.0EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 90%
  • Public exploit code is available (Metasploit, epss top5pct, epss high, public exploit)
CISA-KEV: Not listedEPSS PROB: 90%CVSS: 8.8Exploit: Metasploit · epss top5pct · epss high · public exploitExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
8.8
EG Score
9.0(high)
EG Risk
76(Track)
EG Risk 76/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity90% × 45%
Exploitation90% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
90%
EPSS %ILE
100%
KEV
Not listed

Published

March 17, 2023

Last Modified

November 21, 2024

Advisory Details (3)

Auto-updated Aug 12, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
generic

Bug #13935: RRD restore process does not sanitize filenames from backup XML - pfSense - pfSense bugtracker

https://redmine.pfsense.org/issues/13935
github_commit

commit ca80d18493f8 (pfsense/pfsense)

Fix landed in pfsense/pfsense commit ca80d18493f8 — awaiting tagged release

https://github.com/pfsense/pfsense/commit/ca80d18493f8f91b21933ebd6b714215ae1e5e94
generic

Locked Out | Packet Storm

http://packetstormsecurity.com/files/173487/pfSense-Restore-RRD-Data-Command-Injection.html

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 3× in last 7d / 12× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-07 15:59 UTCEPSS rescore
  2. 2026-09-06 13:45 UTCEPSS rescore
  3. 2026-09-05 15:25 UTCEPSS rescore
  4. 2026-08-30 19:15 UTCEPSS rescore
  5. 2026-08-28 21:38 UTCEPSS rescore
  6. 2026-08-26 14:43 UTCEPSS rescore
  7. 2026-08-24 14:14 UTCEPSS rescore
  8. 2026-08-24 07:58 UTCOSV refresh
  9. 2026-08-21 23:46 UTCEPSS rescore
  10. 2026-08-19 17:02 UTCEPSS rescore
  11. 2026-08-13 21:58 UTCEPSS rescore
  12. 2026-08-11 13:39 UTCEPSS rescore
  13. 2026-08-08 16:34 UTCEPSS rescore
  14. 2026-08-08 04:26 UTCOSV refresh
  15. 2026-08-06 13:44 UTCEPSS rescore
  16. 2026-07-30 16:26 UTCEPSS rescore
  17. 2026-07-30 16:26 UTCEPSS rescore
  18. 2026-07-28 15:34 UTCEPSS rescore
  19. 2026-07-28 15:34 UTCEPSS rescore
  20. 2026-07-24 14:15 UTCEPSS rescore
  21. 2026-07-23 02:20 UTCEG score recompute
  22. 2026-07-22 21:24 UTCEG score recompute▲ 0.20
  23. 2026-07-22 21:23 UTCGHSA enrichment
  24. 2026-07-22 14:06 UTCEPSS rescore
  25. 2026-07-22 14:06 UTCEPSS rescore
Show 47 more
  1. 2026-07-20 17:06 UTCEPSS rescore
  2. 2026-07-16 17:01 UTCEPSS rescore
  3. 2026-07-16 17:01 UTCEPSS rescore
  4. 2026-07-16 02:53 UTCOSV refresh
  5. 2026-07-15 16:56 UTCEPSS rescore
  6. 2026-07-15 16:56 UTCEPSS rescore
  7. 2026-07-15 01:58 UTCEPSS rescore
  8. 2026-07-15 01:58 UTCEPSS rescore
  9. 2026-07-13 22:28 UTCEPSS rescore
  10. 2026-07-13 22:28 UTCEPSS rescore
  11. 2026-07-01 15:04 UTCEPSS rescore
  12. 2026-06-28 03:04 UTCOSV refresh
  13. 2026-06-25 13:48 UTCEPSS rescore
  14. 2026-06-25 13:48 UTCEPSS rescore
  15. 2026-06-23 21:31 UTCEPSS rescore
  16. 2026-06-23 21:31 UTCEPSS rescore
  17. 2026-06-17 17:51 UTCEPSS rescore
  18. 2026-06-17 17:51 UTCEPSS rescore
  19. 2026-06-15 17:47 UTCEPSS rescore
  20. 2026-06-13 22:59 UTCEPSS rescore
  21. 2026-06-13 22:59 UTCEPSS rescore
  22. 2026-06-12 23:10 UTCEPSS rescore
  23. 2026-06-10 22:17 UTCEPSS rescore
  24. 2026-06-10 13:47 UTCOSV refresh
  25. 2026-06-10 13:21 UTCEPSS rescore
  26. 2026-06-10 13:21 UTCEPSS rescore
  27. 2026-06-08 14:15 UTCEPSS rescore
  28. 2026-06-08 14:15 UTCEPSS rescore
  29. 2026-06-07 15:23 UTCEPSS rescore
  30. 2026-06-07 15:23 UTCEPSS rescore
  31. 2026-06-06 13:46 UTCEPSS rescore
  32. 2026-06-06 13:46 UTCEPSS rescore
  33. 2026-06-05 22:46 UTCEPSS rescore
  34. 2026-06-05 22:46 UTCEPSS rescore
  35. 2026-06-05 06:09 UTCEPSS rescore
  36. 2026-06-05 06:09 UTCEPSS rescore
  37. 2026-06-04 13:11 UTCEPSS rescore
  38. 2026-06-04 13:11 UTCEPSS rescore
  39. 2026-06-01 13:51 UTCEPSS rescore
  40. 2026-05-31 22:29 UTCEPSS rescore
  41. 2026-05-31 22:29 UTCEPSS rescore
  42. 2026-05-31 22:29 UTCEPSS rescore
  43. 2026-05-29 13:43 UTCEPSS rescore
  44. 2026-05-28 13:43 UTCEPSS rescore
  45. 2026-05-28 13:43 UTCEPSS rescore
  46. 2026-05-25 05:03 UTCEG score recompute
  47. 2026-05-25 05:03 UTCGHSA enrichment

Publicly available exploits

(2 references)

Working exploit code is in the public domain (1 Metasploit module) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-51608
    First seen Jul 20, 2023

    pfSense v2.7.0 - OS Command Injection

    Open source ↗
  • Metasploitexploit/unix/http/pfsense_config_data_exec✓ verified
    First seen Mar 18, 2023

    pfSense Restore RRD Data Command Injection

    Open source ↗

Frequently asked(5)

What is CVE-2023-27253?
CVE-2023-27253 is a critical vulnerability published on March 17, 2023. 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.
When was CVE-2023-27253 disclosed?
CVE-2023-27253 was first published in the National Vulnerability Database on March 17, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-27253 actively exploited?
CVE-2023-27253 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 90% probability of exploitation in the next 30 days, which ranks it in the top 0.2% of all scored CVEs.
What is the CVSS score of CVE-2023-27253?
CVE-2023-27253 has a CVSS v3 base score of 8.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
How do I remediate CVE-2023-27253?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-27253, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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