CVE-2006-4175

HIGHCVSS v2 · 7.87.8—
EchelonGraph scoreLOW confidence

This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 7.8 — v2 rates that HIGH (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:L/Au:N/C:N/I:N/A:C. 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 3.4% 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
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 3%CVSS v2: 7.8Exploit: None knownExposed: 0

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

The LDAP server (ns-slapd) in Sun Java System Directory Server 5.2 Patch4 and earlier and ONE Directory Server 5.1 and 5.2 allows remote attackers to cause a denial of service (crash) via malformed queries, probably malformed BER queries, which trigger a free of uninitialized memory locations.

CVSS v2.0 (legacy)
7.8HIGHNVD never assigned a CVSS v3 rating to this CVE
EG Score
7.8(low)
EG Risk
41(Track)
EG Risk 41/100SSVC: 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
Severity78% × 45%
Exploitation3% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
3%
EPSS %ILE
88%
KEV
Not listed

Published

March 26, 2007

Last Modified

April 23, 2026

References (16)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 22× 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. 2026-07-26 13:29 UTCEG score recompute▲ 7.80
  2. 2026-07-24 14:11 UTCEPSS rescore
  3. 2026-07-23 00:51 UTCEG score recompute
  4. 2026-07-23 00:30 UTCEG score recompute
  5. 2026-07-22 23:55 UTCEG score recompute
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  7. 2026-07-20 17:02 UTCEPSS rescore
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  1. 2026-06-24 14:01 UTCEPSS rescore
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  4. 2026-06-22 14:22 UTCEPSS rescore
  5. 2026-06-21 01:56 UTCEPSS rescore
  6. 2026-06-19 19:22 UTCEPSS rescore
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  8. 2026-06-18 17:49 UTCEPSS rescore
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  18. 2026-06-11 13:55 UTCEPSS rescore
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  21. 2026-06-07 15:21 UTCEPSS rescore
  22. 2026-06-06 13:44 UTCEPSS rescore
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  24. 2026-06-05 22:43 UTCEPSS rescore
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  31. 2026-06-01 13:49 UTCEPSS rescore
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  34. 2026-05-31 22:28 UTCEPSS rescore
  35. 2026-05-31 03:34 UTCEG score recompute
  36. 2026-05-31 03:34 UTCGHSA enrichment
  37. 2026-05-31 00:13 UTCEPSS rescore
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  40. 2026-05-29 13:40 UTCEPSS rescore
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  43. 2026-05-27 13:37 UTCEPSS rescore
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  45. 2026-05-26 13:41 UTCEPSS rescore
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  47. 2026-05-26 07:16 UTCEPSS rescore
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  49. 2026-05-24 16:42 UTCEPSS rescore
  50. 2026-05-22 21:15 UTCEPSS rescore
  51. 2026-05-22 21:15 UTCEPSS rescore
  52. 2026-05-21 22:38 UTCEPSS rescore
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  55. 2026-05-20 11:20 UTCEPSS rescore
  56. 2026-05-20 11:20 UTCEPSS rescore
  57. 2026-05-18 21:29 UTCEPSS rescore

Frequently asked(4)

What is CVE-2006-4175?
CVE-2006-4175 is a high vulnerability published on March 26, 2007. The LDAP server (ns-slapd) in Sun Java System Directory Server 5.2 Patch4 and earlier and ONE Directory Server 5.1 and 5.2 allows remote attackers to cause a denial of service (crash) via malformed queries, probably malformed BER queries, which trigger a free of uninitialized memory locations.
When was CVE-2006-4175 disclosed?
CVE-2006-4175 was first published in the National Vulnerability Database on March 26, 2007, with the most recent update on April 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2006-4175 actively exploited?
CVE-2006-4175 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3% probability of exploitation in the next 30 days, which ranks it in the top 12.3% of all scored CVEs.
How do I remediate CVE-2006-4175?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2006-4175, 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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