CVE-2013-4221

NONECVSS 0.0
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 3%CVSS: —Exploit: NoneExposed: 0

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

The default configuration of the ObjectRepresentation class in Restlet before 2.1.4 deserializes objects from untrusted sources using the Java XMLDecoder, which allows remote attackers to execute arbitrary Java code via crafted XML.

CVSS v3
—
EG Score
0.0(none)
EG Risk
0
EG Risk 0/100

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. It is distinct from the 0–10 EG Score, which measures severity.

EPSS
85.7%
KEV
Not listed

Published

October 10, 2013

Last Modified

April 29, 2026

References (12)

Affected Packages

(1 across 1 ecosystem)
Maven(1)
PackageVulnerable rangeFixed inDependents
org.restlet.jse:org.restlet—2.1.4—

Data Freshness Timeline

(refreshed 14× 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. 2026-07-23 14:14 UTCEPSS rescore
  2. 2026-07-23 01:10 UTCEG score recompute
  3. 2026-07-23 00:13 UTCEG score recompute
  4. 2026-07-22 21:52 UTCEG score recompute
  5. 2026-07-22 14:04 UTCEPSS rescore
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  7. 2026-07-21 15:21 UTCEPSS rescore
  8. 2026-07-20 17:03 UTCEPSS rescore
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  10. 2026-07-19 14:27 UTCEPSS rescore
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  1. 2026-07-05 02:26 UTCEPSS rescore
  2. 2026-07-04 06:27 UTCEPSS rescore
  3. 2026-07-01 15:02 UTCEPSS rescore
  4. 2026-06-30 23:19 UTCEPSS rescore
  5. 2026-06-30 23:19 UTCEPSS rescore
  6. 2026-06-29 14:02 UTCEPSS rescore
  7. 2026-06-28 14:03 UTCEPSS rescore
  8. 2026-06-28 04:53 UTCEPSS rescore
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  10. 2026-06-27 03:05 UTCEPSS rescore
  11. 2026-06-25 13:46 UTCEPSS rescore
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  18. 2026-06-19 19:23 UTCEPSS rescore
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  20. 2026-06-18 17:49 UTCEPSS rescore
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  22. 2026-06-17 17:49 UTCEPSS rescore
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  26. 2026-06-15 17:44 UTCEPSS rescore
  27. 2026-06-14 23:14 UTCEPSS rescore
  28. 2026-06-13 22:57 UTCEPSS rescore
  29. 2026-06-12 23:08 UTCEPSS rescore
  30. 2026-06-11 13:56 UTCEPSS rescore
  31. 2026-06-10 13:18 UTCEPSS rescore
  32. 2026-06-08 14:14 UTCEPSS rescore
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  34. 2026-06-06 13:45 UTCEPSS rescore
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  36. 2026-06-05 22:44 UTCEPSS rescore
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  40. 2026-06-02 20:10 UTCEPSS rescore
  41. 2026-06-02 20:10 UTCEPSS rescore
  42. 2026-06-01 13:49 UTCEPSS rescore
  43. 2026-06-01 13:49 UTCEPSS rescore
  44. 2026-05-31 22:28 UTCEPSS rescore
  45. 2026-05-31 22:28 UTCEPSS rescore
  46. 2026-05-31 00:14 UTCEPSS rescore
  47. 2026-05-31 00:14 UTCEPSS rescore
  48. 2026-05-29 13:41 UTCEPSS rescore
  49. 2026-05-29 13:41 UTCEPSS rescore
  50. 2026-05-28 22:06 UTCEG score recompute
  51. 2026-05-28 13:42 UTCEPSS rescore
  52. 2026-05-28 13:42 UTCEPSS rescore
  53. 2026-05-28 13:42 UTCEPSS rescore
  54. 2026-05-27 13:38 UTCEPSS rescore
  55. 2026-05-27 13:38 UTCEPSS rescore
  56. 2026-05-26 13:41 UTCEPSS rescore
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  58. 2026-05-26 07:16 UTCEPSS rescore
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  60. 2026-05-24 16:43 UTCEPSS rescore
  61. 2026-05-22 21:15 UTCEPSS rescore
  62. 2026-05-22 21:15 UTCEPSS rescore
  63. 2026-05-22 21:15 UTCEPSS rescore
  64. 2026-05-21 22:39 UTCEPSS rescore
  65. 2026-05-20 22:37 UTCEPSS rescore
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  67. 2026-05-20 11:21 UTCEPSS rescore
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  70. 2026-05-18 21:29 UTCEPSS rescore
  71. 2026-05-18 21:29 UTCEPSS rescore

Frequently asked(4)

What is CVE-2013-4221?
CVE-2013-4221 is a none vulnerability published on October 10, 2013. The default configuration of the ObjectRepresentation class in Restlet before 2.1.4 deserializes objects from untrusted sources using the Java XMLDecoder, which allows remote attackers to execute arbitrary Java code via crafted XML.
When was CVE-2013-4221 disclosed?
CVE-2013-4221 was first published in the National Vulnerability Database on October 10, 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-2013-4221 actively exploited?
CVE-2013-4221 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 85.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2013-4221?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2013-4221, 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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