CVE-2018-9477

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2024-11-20. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.8EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: <0.1%CVSS: 7.8Exploit: None knownExposed services: Not assessed

A fix is referenced (a reference tagged "Patch", often a source commit), but no release containing it is confirmed — find the release that contains it; until it is applied, mitigate (WAF / firewall / segmentation).

In the development options section of the Settings app, there is a possible authentication bypass due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.

CVSS v3
7.8
EG Score
7.8HIGHmedium confidence
EG Risk
35
EG Risk 35/100CISA 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
Severity78% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines; until then, restrict network exposure of the affected system or apply the vendor's mitigation.
EPSS PROB
<0.1%
EPSS %ILE
below the 1st
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). 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

November 20, 2024

Last Modified

December 18, 2024

Advisory Details (1)

Auto-updated Oct 8, 2026
Fix referenced — no release confirmed yet.
generic

Android Security Bulletin—September 2018  |  Android Open Source Project

https://source.android.com/security/bulletin/2018-09-01

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 21× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 79 of 95 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 21 repeat rows among the latest 100 are merged into the row they repeat. The 16 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-10 19:55 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  2. 2026-10-09 20:03 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  3. 2026-10-08 16:37 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  4. 2026-10-07 23:42 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  5. 2026-10-06 15:12 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  6. 2026-10-03 14:21 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  7. 2026-10-01 19:44 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  8. 2026-09-30 14:59 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  9. 2026-09-30 10:06 UTCEG score recompute
  10. 2026-09-29 15:12 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  11. 2026-09-28 13:46 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  12. 2026-09-27 13:40 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  13. 2026-09-26 15:53 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  14. 2026-09-24 13:59 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  15. 2026-09-23 13:42 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  16. 2026-09-19 15:36 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  17. 2026-09-18 19:22 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  18. 2026-09-17 19:22 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  19. 2026-09-15 03:05 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  20. 2026-09-13 16:42 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  21. 2026-09-11 14:48 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  22. 2026-09-11 09:32 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  23. 2026-09-04 13:56 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  24. 2026-09-04 05:02 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  25. 2026-08-30 19:13 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
Show 54 more
  1. 2026-08-27 14:21 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  2. 2026-08-26 14:42 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  3. 2026-08-25 13:45 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  4. 2026-08-24 14:11 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  5. 2026-08-19 17:00 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  6. 2026-08-18 13:44 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  7. 2026-08-17 13:43 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  8. 2026-08-16 02:10 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  9. 2026-08-13 21:56 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  10. 2026-08-12 13:47 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  11. 2026-08-08 16:32 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  12. 2026-08-06 13:42 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  13. 2026-08-04 15:05 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  14. 2026-08-03 10:31 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  15. 2026-08-02 02:23 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  16. 2026-08-01 04:12 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  17. 2026-07-30 01:27 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  18. 2026-07-28 15:32 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  19. 2026-07-27 14:05 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  20. 2026-07-26 14:51 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  21. 2026-07-25 14:14 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  22. 2026-07-24 14:14 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  23. 2026-07-23 01:37 UTCEG score recompute
  24. 2026-07-22 22:18 UTCEG score recompute
  25. 2026-07-22 14:05 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  26. 2026-07-20 17:04 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  27. 2026-07-19 02:26 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  28. 2026-07-16 16:59 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  29. 2026-07-15 16:55 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  30. 2026-07-15 01:56 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  31. 2026-07-13 22:27 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  32. 2026-07-12 05:43 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  33. 2026-07-08 15:11 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  34. 2026-07-07 13:42 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  35. 2026-07-06 16:24 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  36. 2026-07-06 02:20 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  37. 2026-07-04 06:28 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  38. 2026-06-28 14:04 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  39. 2026-06-28 04:53 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  40. 2026-06-27 03:06 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  41. 2026-06-24 14:02 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  42. 2026-06-23 21:30 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  43. 2026-06-21 01:57 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  44. 2026-06-18 17:50 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  45. 2026-06-17 17:50 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  46. 2026-06-16 17:50 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  47. 2026-06-15 17:45 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  48. 2026-06-14 23:15 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  49. 2026-06-13 22:58 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  50. 2026-06-12 23:09 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  51. 2026-06-10 13:19 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  52. 2026-06-08 14:14 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  53. 2026-06-07 15:22 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  54. 2026-06-06 13:45 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile

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Frequently asked(5)

What is CVE-2018-9477?
CVE-2018-9477 is a high vulnerability published on November 20, 2024. In the development options section of the Settings app, there is a possible authentication bypass due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.
When was the CVE record for CVE-2018-9477 published?
The CVE record for CVE-2018-9477 was published on November 20, 2024. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of December 18, 2024; the record at its source may have been updated since.
Is CVE-2018-9477 actively exploited?
CVE-2018-9477 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a <0.1% probability of exploitation in the next 30 days (below the 1st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2018-9477?
CVE-2018-9477 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2018-9477?
A fix for CVE-2018-9477 is referenced (a reference tagged "Patch", often a source commit), but EchelonGraph has no release containing it on record. Check that reference and the vendor's advisory for a release that contains the fix and update to it; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

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