CVE-2012-6550

MEDIUMCVSS v2 · 4.34.3—
EchelonGraph scoreLOW confidence

This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 4.3 — v2 rates that MEDIUM (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:N/AC:M/Au:N/C:N/I:P/A:N. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 4.5% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.

Sources: epss, nvd_v2
Weaponized
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 4.5%CVSS v2: 4.3Exploit: Exploit-DB (verified) · public exploitExposed services: Not assessed

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

Cross-site scripting (XSS) vulnerability in ZeroClipboard before 1.1.4 allows remote attackers to inject arbitrary web script or HTML via "the clipText returned from the flash object," a different vulnerability than CVE-2013-1808.

CVSS v2.0 (legacy)
4.3MEDIUMNVD never assigned a CVSS v3 rating to this CVE
EG Score
4.3MEDIUMlow confidence
EG Risk
50
EG Risk 50/100CISA SSVC

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
Severity43% × 45%
Exploitation65% × 40%
Automatability30% × 15%
CISA SSVC: Track at low, Track or Track* at medium and Track* or Attend at high mission impact.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
4.5%
EPSS %ILE
91st
KEV
Not listed

CISA SSVCTrack at low, Track or Track* at medium and Track* or Attend at high mission impact.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation public PoC (EG-KEV: weaponized) · Automatable unknown (not published for this CVE) · Technical impact unknown (not published for this CVE). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

April 2, 2013

Last Modified

April 29, 2026

References (6)

Affected Packages

(2 across 2 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
db4o8.0.184.15484+dfsg2-3.1
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
db4o8.0.184.15484+dfsg2-3.1
  • every version on: no fix on record
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 4× in last 7d / 16× 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.

Showing the most recent 100 of 146 total refreshes for this CVE.

  1. 2026-10-05 17:38 UTCEPSS rescore
  2. 2026-10-04 23:16 UTCEPSS rescore
  3. 2026-09-30 14:58 UTCEPSS rescore
  4. 2026-09-30 11:17 UTCOSV refresh
  5. 2026-09-29 08:33 UTCEG score recompute
  6. 2026-09-27 13:39 UTCEPSS rescore
  7. 2026-09-26 15:52 UTCEPSS rescore
  8. 2026-09-24 13:57 UTCEPSS rescore
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  11. 2026-09-15 03:04 UTCEPSS rescore
  12. 2026-09-12 14:55 UTCEPSS rescore
  13. 2026-09-11 17:53 UTCOSV refresh
  14. 2026-09-11 09:30 UTCEPSS rescore
  15. 2026-09-07 15:56 UTCEPSS rescore
  16. 2026-09-06 13:42 UTCEPSS rescore
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  20. 2026-09-01 13:47 UTCEPSS rescore
  21. 2026-08-27 14:20 UTCEPSS rescore
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  23. 2026-08-25 13:43 UTCEPSS rescore
  24. 2026-08-24 07:23 UTCEPSS rescore
  25. 2026-08-23 21:22 UTCOSV refresh
Show 75 more
  1. 2026-08-21 23:44 UTCEPSS rescore
  2. 2026-08-20 22:50 UTCEPSS rescore
  3. 2026-08-19 16:59 UTCEPSS rescore
  4. 2026-08-18 13:42 UTCEPSS rescore
  5. 2026-08-16 02:09 UTCEPSS rescore
  6. 2026-08-15 01:25 UTCEPSS rescore
  7. 2026-08-12 13:45 UTCEPSS rescore
  8. 2026-08-09 13:42 UTCEPSS rescore
  9. 2026-08-08 16:31 UTCEPSS rescore
  10. 2026-08-07 20:49 UTCOSV refresh
  11. 2026-08-07 16:21 UTCEPSS rescore
  12. 2026-08-06 13:42 UTCEPSS rescore
  13. 2026-08-05 19:12 UTCEPSS rescore
  14. 2026-08-04 15:04 UTCEPSS rescore
  15. 2026-08-02 02:22 UTCEPSS rescore
  16. 2026-07-30 01:26 UTCEPSS rescore
  17. 2026-07-28 15:31 UTCEPSS rescore
  18. 2026-07-26 13:47 UTCEG score recompute▲ 4.30
  19. 2026-07-25 14:12 UTCEPSS rescore
  20. 2026-07-23 14:14 UTCEPSS rescore
  21. 2026-07-23 01:08 UTCEG score recompute
  22. 2026-07-23 00:12 UTCEG score recompute
  23. 2026-07-22 21:50 UTCEG score recompute
  24. 2026-07-22 14:04 UTCEPSS rescore
  25. 2026-07-22 14:04 UTCEPSS rescore
  26. 2026-07-22 13:37 UTCOSV refresh
  27. 2026-07-21 15:21 UTCEPSS rescore
  28. 2026-07-20 17:03 UTCEPSS rescore
  29. 2026-07-20 17:03 UTCEPSS rescore
  30. 2026-07-19 14:27 UTCEPSS rescore
  31. 2026-07-19 14:27 UTCEPSS rescore
  32. 2026-07-19 02:25 UTCEPSS rescore
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  34. 2026-07-18 10:00 UTCEPSS rescore
  35. 2026-07-16 16:58 UTCEPSS rescore
  36. 2026-07-15 16:54 UTCEPSS rescore
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  39. 2026-07-13 22:26 UTCEPSS rescore
  40. 2026-07-13 06:08 UTCEPSS rescore
  41. 2026-07-11 08:23 UTCEPSS rescore
  42. 2026-07-09 19:05 UTCEPSS rescore
  43. 2026-07-08 15:10 UTCEPSS rescore
  44. 2026-07-06 02:19 UTCEPSS rescore
  45. 2026-07-06 02:19 UTCEPSS rescore
  46. 2026-07-05 08:59 UTCOSV refresh
  47. 2026-07-05 02:26 UTCEPSS rescore
  48. 2026-07-04 06:27 UTCEPSS rescore
  49. 2026-07-01 15:02 UTCEPSS rescore
  50. 2026-06-30 23:19 UTCEPSS rescore
  51. 2026-06-30 23:19 UTCEPSS rescore
  52. 2026-06-29 14:02 UTCEPSS rescore
  53. 2026-06-28 14:03 UTCEPSS rescore
  54. 2026-06-28 04:53 UTCEPSS rescore
  55. 2026-06-28 04:53 UTCEPSS rescore
  56. 2026-06-27 03:05 UTCEPSS rescore
  57. 2026-06-25 13:46 UTCEPSS rescore
  58. 2026-06-24 14:02 UTCEPSS rescore
  59. 2026-06-24 14:02 UTCEPSS rescore
  60. 2026-06-23 21:30 UTCEPSS rescore
  61. 2026-06-22 14:22 UTCEPSS rescore
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  63. 2026-06-21 14:53 UTCEPSS rescore
  64. 2026-06-21 01:57 UTCEPSS rescore
  65. 2026-06-21 01:56 UTCEPSS rescore
  66. 2026-06-19 19:23 UTCEPSS rescore
  67. 2026-06-19 19:22 UTCEPSS rescore
  68. 2026-06-18 17:49 UTCEPSS rescore
  69. 2026-06-18 17:49 UTCEPSS rescore
  70. 2026-06-17 17:49 UTCEPSS rescore
  71. 2026-06-17 17:49 UTCEPSS rescore
  72. 2026-06-16 20:05 UTCOSV refresh
  73. 2026-06-16 17:49 UTCEPSS rescore
  74. 2026-06-16 17:49 UTCEPSS rescore
  75. 2026-06-15 17:44 UTCEPSS rescore

Publicly available exploits

(1 reference)

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

  • Exploit-DBEDB-38329✓ verified
    First seen Feb 20, 2013

    ZeroClipboard 1.9.x - 'id' Cross-Site Scripting

    Open source ↗

Related CVEs(same product + same CWE)

Frequently asked(4)

What is CVE-2012-6550?
CVE-2012-6550 is a medium vulnerability published on April 2, 2013. Cross-site scripting (XSS) vulnerability in ZeroClipboard before 1.1.4 allows remote attackers to inject arbitrary web script or HTML via "the clipText returned from the flash object," a different vulnerability than CVE-2013-1808.
When was CVE-2012-6550 disclosed?
CVE-2012-6550 was first published on April 2, 2013, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2012-6550 actively exploited?
CVE-2012-6550 is not currently on CISA's Known Exploited Vulnerabilities catalog. EchelonGraph's EG-KEV model classifies it as weaponized: a functional public exploit exists. FIRST EPSS estimates a 4.5% probability of exploitation in the next 30 days (91st percentile of EPSS-scored CVEs).
How do I remediate CVE-2012-6550?
No fix for CVE-2012-6550 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix.

Dependency Blast Radius

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