CVE-2021-0341

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.9%, top 45% 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
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.5Exploit: None knownExposed: 0

A fix is available — apply it.

In verifyHostName of OkHostnameVerifier.java, there is a possible way to accept a certificate for the wrong domain due to improperly used crypto. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-8.1 Android-9 Android-10 Android-11Android ID: A-171980069

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
39(Track)
EG Risk 39/100SSVC: 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
Severity75% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
57%
KEV
Not listed

Published

February 10, 2021

Last Modified

November 21, 2024

References (2)

Vendor Advisories for CVE-2021-0341(9)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(6)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatdevspaces/server-rhel8:3.16-142024-09-12redhat
redhatokhttp2023-05-18redhat
redhatrh-sso7-keycloak-0:18.0.7-1.redhat_00001.1.el7sso2023-05-10redhat
redhatrh-sso7-keycloak-0:18.0.7-1.redhat_00001.1.el8sso2023-05-10redhat
redhatrh-sso-7/sso76-openshift-rhel8:7.6-222023-05-10redhat
redhatrh-sso7-keycloak-0:18.0.7-1.redhat_00001.1.el9sso2023-05-10redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
Maven(1)
PackageVulnerable rangeFixed inDependents
com.squareup.okhttp3:okhttp3.0.0 ... 4.9.1 (74 versions)4.9.2—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 21× 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 147 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2021-0341?
CVE-2021-0341 is a high vulnerability published on February 10, 2021. In verifyHostName of OkHostnameVerifier.java, there is a possible way to accept a certificate for the wrong domain due to improperly used crypto. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product:…
When was CVE-2021-0341 disclosed?
CVE-2021-0341 was first published in the National Vulnerability Database on February 10, 2021, 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-2021-0341 actively exploited?
CVE-2021-0341 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 42.6% of all scored CVEs.
What is the CVSS score of CVE-2021-0341?
CVE-2021-0341 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2021-0341?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-0341, 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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