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
9.3EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • Public exploit code is available (Metasploit, ssvc poc, public exploit)
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.3Exploit: Metasploit · ssvc poc · public exploitExposed: 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)
EG Risk
83(Attend)
EG Risk 83/100SSVC: Attend

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
Severity93% × 45%
Exploitation65% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
1%
EPSS %ILE
65%
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 / 35× 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. 2026-07-25 14:12 UTCEPSS rescore
  2. 2026-07-23 14:14 UTCEPSS rescore
  3. 2026-07-23 01:06 UTCEG score recompute
  4. 2026-07-23 00:10 UTCEG score recompute
  5. 2026-07-22 21:49 UTCEG score recompute
  6. 2026-07-22 14:04 UTCEPSS rescore
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  1. 2026-07-06 02:19 UTCEPSS rescore
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  3. 2026-07-04 06:27 UTCEPSS rescore
  4. 2026-07-02 14:01 UTCEPSS rescore
  5. 2026-07-01 15:02 UTCEPSS rescore
  6. 2026-06-30 23:19 UTCEPSS rescore
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  8. 2026-06-28 14:03 UTCEPSS rescore
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  17. 2026-06-23 21:30 UTCEPSS rescore
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  20. 2026-06-21 14:53 UTCEPSS rescore
  21. 2026-06-21 01:56 UTCEPSS rescore
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  23. 2026-06-19 19:22 UTCEPSS rescore
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  25. 2026-06-18 17:49 UTCEPSS rescore
  26. 2026-06-18 17:49 UTCEPSS rescore
  27. 2026-06-17 17:49 UTCEPSS rescore
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  31. 2026-06-15 17:44 UTCEPSS rescore
  32. 2026-06-14 23:14 UTCEPSS rescore
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  34. 2026-06-13 22:57 UTCEPSS rescore
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  36. 2026-06-10 22:14 UTCEPSS rescore
  37. 2026-06-10 13:18 UTCEPSS rescore
  38. 2026-06-08 15:50 UTCEG score recompute▲ 9.30
  39. 2026-06-08 15:50 UTCGHSA enrichment
  40. 2026-06-08 14:14 UTCEPSS rescore
  41. 2026-06-08 14:14 UTCEPSS rescore
  42. 2026-06-07 15:22 UTCEPSS rescore
  43. 2026-06-07 15:22 UTCEPSS rescore
  44. 2026-06-06 13:45 UTCEPSS rescore
  45. 2026-06-06 13:45 UTCEPSS rescore
  46. 2026-06-05 22:44 UTCEPSS rescore
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  48. 2026-06-05 06:08 UTCEPSS rescore
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  50. 2026-06-04 13:09 UTCEPSS rescore
  51. 2026-06-01 13:49 UTCEPSS rescore
  52. 2026-05-29 13:41 UTCEPSS rescore
  53. 2026-05-27 13:38 UTCEPSS rescore
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  55. 2026-05-26 07:16 UTCEPSS rescore
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  58. 2026-05-24 16:43 UTCEPSS rescore
  59. 2026-05-22 21:15 UTCEPSS rescore
  60. 2026-05-22 21:15 UTCEPSS rescore
  61. 2026-05-22 21:15 UTCEPSS rescore
  62. 2026-05-21 22:39 UTCEPSS rescore
  63. 2026-05-21 10:18 UTCEG score recompute
  64. 2026-05-21 10:18 UTCGHSA enrichment
  65. 2026-05-20 22:37 UTCEPSS rescore
  66. 2026-05-20 22:37 UTCEPSS rescore
  67. 2026-05-20 22:37 UTCEPSS rescore
  68. 2026-05-18 21:29 UTCEPSS rescore
  69. 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 1% probability of exploitation in the next 30 days, which ranks it in the top 35.4% of all scored CVEs.
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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