CVE-2012-10033

CRITICALNVD 9.39.3—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.3 under NVD CVSS v3. EPSS exploit probability: 1.2%, top 35% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Weaponized
9.3
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 9.3Exploit: NoneExposed: 0

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

Narcissus is vulnerable to remote code execution via improper input handling in its image configuration workflow. Specifically, the backend.php script fails to sanitize the release parameter before passing it to the configure_image() function. This function invokes PHP’s passthru() with the unsanitized input, allowing attackers to inject arbitrary system commands. Exploitation occurs via a crafted POST request, resulting in command execution under the web server’s context.

CVSS v3
9.3
EG Score
9.3(medium)
EPSS
64.6%
KEV
Not listed

Published

August 5, 2025

Last Modified

April 15, 2026

Advisory Details (5)

Auto-updated Jul 4, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Narcissus Image Configuration - Passthru (Metasploit) - Linux remote Exploit

https://www.exploit-db.com/exploits/22856
generic🟡 PoC Available

Narcissus - Remote Command Execution - PHP webapps Exploit

https://www.exploit-db.com/exploits/22709
generic
https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/webapp/narcissus_backend_exec.rb
generic

Narcissus backend.php Image Configuration Command Injection | Advisories | VulnCheck

https://www.vulncheck.com/advisories/narcissus-image-config-command-injection
generic

Narcissus - Online image builder for the angstrom distribution

https://web.archive.org/web/20101127002623/https://narcissus.angstrom-distribution.org/

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 38× 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. 2026-07-22 21:49 UTCEG score recompute
  2. 2026-07-22 14:04 UTCEPSS rescore
  3. 2026-07-22 14:04 UTCEPSS rescore
  4. 2026-07-21 15:21 UTCEPSS rescore
  5. 2026-07-20 17:03 UTCEPSS rescore
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  7. 2026-07-19 14:27 UTCEPSS rescore
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  10. 2026-07-16 16:58 UTCEPSS rescore
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  15. 2026-07-13 06:08 UTCEPSS rescore
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  1. 2026-07-01 15:02 UTCEPSS rescore
  2. 2026-06-30 23:19 UTCEPSS rescore
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  9. 2026-06-25 13:46 UTCEPSS rescore
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  11. 2026-06-24 14:02 UTCEPSS rescore
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  17. 2026-06-21 01:56 UTCEPSS rescore
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  21. 2026-06-18 17:49 UTCEPSS rescore
  22. 2026-06-18 17:49 UTCEPSS rescore
  23. 2026-06-17 17:49 UTCEPSS rescore
  24. 2026-06-17 17:49 UTCEPSS rescore
  25. 2026-06-16 17:49 UTCEPSS rescore
  26. 2026-06-16 17:49 UTCEPSS rescore
  27. 2026-06-15 17:44 UTCEPSS rescore
  28. 2026-06-14 23:14 UTCEPSS rescore
  29. 2026-06-14 23:14 UTCEPSS rescore
  30. 2026-06-13 22:57 UTCEPSS rescore
  31. 2026-06-12 23:08 UTCEPSS rescore
  32. 2026-06-10 22:14 UTCEPSS rescore
  33. 2026-06-10 13:18 UTCEPSS rescore
  34. 2026-06-08 15:50 UTCEG score recompute▲ 9.30
  35. 2026-06-08 15:50 UTCGHSA enrichment
  36. 2026-06-08 14:14 UTCEPSS rescore
  37. 2026-06-08 14:14 UTCEPSS rescore
  38. 2026-06-07 15:22 UTCEPSS rescore
  39. 2026-06-07 15:22 UTCEPSS rescore
  40. 2026-06-06 13:45 UTCEPSS rescore
  41. 2026-06-06 13:45 UTCEPSS rescore
  42. 2026-06-05 22:44 UTCEPSS rescore
  43. 2026-06-05 22:44 UTCEPSS rescore
  44. 2026-06-05 06:08 UTCEPSS rescore
  45. 2026-06-05 06:08 UTCEPSS rescore
  46. 2026-06-04 13:09 UTCEPSS rescore
  47. 2026-06-01 13:49 UTCEPSS rescore
  48. 2026-05-29 13:41 UTCEPSS rescore
  49. 2026-05-27 13:38 UTCEPSS rescore
  50. 2026-05-27 13:38 UTCEPSS rescore
  51. 2026-05-26 07:16 UTCEPSS rescore
  52. 2026-05-26 07:16 UTCEPSS rescore
  53. 2026-05-26 07:16 UTCEPSS rescore
  54. 2026-05-24 16:43 UTCEPSS rescore
  55. 2026-05-22 21:15 UTCEPSS rescore
  56. 2026-05-22 21:15 UTCEPSS rescore
  57. 2026-05-22 21:15 UTCEPSS rescore
  58. 2026-05-21 22:39 UTCEPSS rescore
  59. 2026-05-21 10:18 UTCEG score recompute
  60. 2026-05-21 10:18 UTCGHSA enrichment
  61. 2026-05-20 22:37 UTCEPSS rescore
  62. 2026-05-20 22:37 UTCEPSS rescore
  63. 2026-05-20 22:37 UTCEPSS rescore
  64. 2026-05-18 21:29 UTCEPSS rescore
  65. 2026-05-18 21:29 UTCEPSS rescore

Publicly available exploits

(1 reference)

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

  • Metasploitexploit/unix/webapp/narcissus_backend_exec✓ verified
    First seen Nov 14, 2012

    Narcissus Image Configuration Passthru Vulnerability

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2012-10033?
CVE-2012-10033 is a critical vulnerability published on August 5, 2025. Narcissus is vulnerable to remote code execution via improper input handling in its image configuration workflow. Specifically, the backend.php script fails to sanitize the release parameter before passing it to the configure_image() function. This function invokes PHP’s passthru() with the…
When was CVE-2012-10033 disclosed?
CVE-2012-10033 was first published in the National Vulnerability Database on August 5, 2025, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2012-10033 actively exploited?
CVE-2012-10033 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 64.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2012-10033?
CVE-2012-10033 has a CVSS v3 base score of 9.3 (NVD).
How do I remediate CVE-2012-10033?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2012-10033, 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.

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