CVE-2020-9495

MEDIUMNVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.3 under NVD CVSS v3. EPSS exploit probability: 8.0%, top 6% 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
Trending — 3 sources updated this weekElevated
5.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 8%CVSS: 5.3Exploit: NoneExposed: 0

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

Apache Archiva login service before 2.2.5 is vulnerable to LDAP injection. A attacker is able to retrieve user attribute data from the connected LDAP server by providing special values to the login form. With certain characters it is possible to modify the LDAP filter used to query the LDAP users. By measuring the response time for the login request, arbitrary attribute data can be retrieved from LDAP user objects.

CVSS v3
5.3
EG Score
5.3(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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
Severity53% × 45%
Exploitation40% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
94.2%
KEV
Not listed

Published

June 19, 2020

Last Modified

November 21, 2024

References (12)

Affected Packages

(1 across 1 ecosystem)
Maven(1)
PackageVulnerable rangeFixed inDependents
org.apache.archiva:archiva1.1 ... 2.2.4 (30 versions)2.2.5—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 14× in last 7d / 52× 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 01:55 UTCEG score recompute
  2. 2026-07-22 22:42 UTCEG score recompute
  3. 2026-07-22 14:05 UTCEPSS rescore
  4. 2026-07-21 15:22 UTCEPSS rescore
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  10. 2026-07-19 10:22 UTCOSV refresh
  11. 2026-07-19 02:26 UTCEPSS rescore
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  1. 2026-07-09 19:07 UTCEPSS rescore
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  11. 2026-07-02 16:57 UTCEPSS rescore
  12. 2026-07-01 17:01 UTCOSV refresh
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  31. 2026-06-21 01:57 UTCEPSS rescore
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  39. 2026-06-15 17:46 UTCEPSS rescore
  40. 2026-06-14 23:15 UTCEPSS rescore
  41. 2026-06-14 00:43 UTCOSV refresh
  42. 2026-06-13 22:58 UTCEPSS rescore
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  44. 2026-06-12 23:10 UTCEPSS rescore
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  46. 2026-06-11 13:58 UTCEPSS rescore
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  48. 2026-06-10 22:16 UTCEPSS rescore
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  50. 2026-06-06 13:46 UTCEPSS rescore
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  55. 2026-06-02 20:11 UTCEPSS rescore
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  57. 2026-06-01 13:50 UTCEPSS rescore
  58. 2026-05-31 22:29 UTCEPSS rescore
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  60. 2026-05-29 13:42 UTCEPSS rescore
  61. 2026-05-28 13:43 UTCEPSS rescore
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  63. 2026-05-27 13:39 UTCEPSS rescore
  64. 2026-05-27 13:39 UTCEPSS rescore
  65. 2026-05-27 02:10 UTCEG score recompute
  66. 2026-05-26 13:42 UTCEPSS rescore
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  68. 2026-05-26 07:17 UTCEPSS rescore
  69. 2026-05-26 07:17 UTCEPSS rescore

Publicly available exploits

(1 reference)

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2020-9495?
CVE-2020-9495 is a medium vulnerability published on June 19, 2020. Apache Archiva login service before 2.2.5 is vulnerable to LDAP injection. A attacker is able to retrieve user attribute data from the connected LDAP server by providing special values to the login form. With certain characters it is possible to modify the LDAP filter used to query the LDAP users.…
When was CVE-2020-9495 disclosed?
CVE-2020-9495 was first published in the National Vulnerability Database on June 19, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-9495 actively exploited?
CVE-2020-9495 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 94.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2020-9495?
CVE-2020-9495 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2020-9495?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-9495, 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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