CVE-2020-25900

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

Score 5.3 from GitHub Security Advisory published 2026-06-05. The CNA's CVSS baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:mitre, epss, ghsa
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 5.3Exploit: None knownExposed services: Not assessed

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

HelloTalk through 3.4.1 stores full-precision GPS coordinates even when the user had intended to share only a country or city. Furthermore, these coordinates are placed into a database on the client of other users. (The client side was changed in 2019 to encrypt that database.)

CVSS v3
5.3
EG Score
5.3MEDIUMmedium confidence
EG Risk
39
EG Risk 39/100CISA 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
Severity53% × 45%
Exploitation0% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
0.2%
EPSS %ILE
9th
KEV
Not listed

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

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (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

June 5, 2026

Last Modified

June 5, 2026

Advisory Details (1)

Auto-updated Jun 15, 2026
No fix on record yet.
generic

HelloTalk Precise GPS Location Disclosure via Unencrypted Local Database (CVE-2020-25900) – Isopach's blog – Isopach's CTF writeups and security research

https://isopach.dev/CVE-2020-25900/

Vendor Advisories for CVE-2020-25900(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 30× 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 217 total refreshes for this CVE.

  1. 2026-10-09 20:04 UTCEPSS rescore
  2. 2026-10-08 16:38 UTCEPSS rescore
  3. 2026-10-07 23:44 UTCEPSS rescore
  4. 2026-10-06 15:13 UTCEPSS rescore
  5. 2026-10-05 17:39 UTCEPSS rescore
  6. 2026-10-04 23:18 UTCEPSS rescore
  7. 2026-10-03 14:22 UTCEPSS rescore
  8. 2026-10-02 16:22 UTCEPSS rescore
  9. 2026-09-30 15:16 UTCEG score recompute
  10. 2026-09-30 14:59 UTCEPSS rescore
  11. 2026-09-27 13:40 UTCEPSS rescore
  12. 2026-09-26 15:54 UTCEPSS rescore
  13. 2026-09-26 00:20 UTCEPSS rescore
  14. 2026-09-24 14:00 UTCEPSS rescore
  15. 2026-09-24 14:00 UTCEPSS rescore
  16. 2026-09-22 14:43 UTCEPSS rescore
  17. 2026-09-21 20:28 UTCEPSS rescore
  18. 2026-09-20 20:11 UTCEPSS rescore
  19. 2026-09-18 19:23 UTCEPSS rescore
  20. 2026-09-17 19:22 UTCEPSS rescore
  21. 2026-09-17 19:22 UTCEPSS rescore
  22. 2026-09-16 14:04 UTCEPSS rescore
  23. 2026-09-15 03:06 UTCEPSS rescore
  24. 2026-09-15 03:06 UTCEPSS rescore
  25. 2026-09-14 05:04 UTCEG score recompute
Show 75 more
  1. 2026-09-14 05:04 UTCGHSA enrichment
  2. 2026-09-13 16:42 UTCEPSS rescore
  3. 2026-09-12 14:56 UTCEPSS rescore
  4. 2026-09-11 14:48 UTCEPSS rescore
  5. 2026-09-11 09:32 UTCEPSS rescore
  6. 2026-09-10 09:29 UTCEPSS rescore
  7. 2026-09-08 21:56 UTCEPSS rescore
  8. 2026-09-07 15:57 UTCEPSS rescore
  9. 2026-09-06 13:44 UTCEPSS rescore
  10. 2026-09-05 15:24 UTCEPSS rescore
  11. 2026-09-04 13:57 UTCEPSS rescore
  12. 2026-09-04 05:03 UTCEPSS rescore
  13. 2026-09-02 14:08 UTCEPSS rescore
  14. 2026-09-01 03:32 UTCEPSS rescore
  15. 2026-08-30 19:14 UTCEPSS rescore
  16. 2026-08-30 01:18 UTCEPSS rescore
  17. 2026-08-27 14:21 UTCEPSS rescore
  18. 2026-08-26 14:42 UTCEPSS rescore
  19. 2026-08-25 13:45 UTCEPSS rescore
  20. 2026-08-25 02:06 UTCEG score recompute
  21. 2026-08-25 02:06 UTCGHSA enrichment
  22. 2026-08-23 12:29 UTCEG score recompute
  23. 2026-08-23 12:29 UTCGHSA enrichment
  24. 2026-08-21 23:45 UTCEPSS rescore
  25. 2026-08-21 12:48 UTCEG score recompute
  26. 2026-08-21 12:48 UTCGHSA enrichment
  27. 2026-08-20 22:52 UTCEPSS rescore
  28. 2026-08-20 09:43 UTCEG score recompute
  29. 2026-08-20 09:43 UTCGHSA enrichment
  30. 2026-08-19 17:00 UTCEPSS rescore
  31. 2026-08-18 13:44 UTCEPSS rescore
  32. 2026-08-17 13:43 UTCEPSS rescore
  33. 2026-08-16 15:51 UTCEG score recompute
  34. 2026-08-16 15:51 UTCGHSA enrichment
  35. 2026-08-16 14:52 UTCEPSS rescore
  36. 2026-08-16 02:11 UTCEPSS rescore
  37. 2026-08-15 13:59 UTCEG score recompute
  38. 2026-08-15 13:59 UTCGHSA enrichment
  39. 2026-08-15 01:26 UTCEPSS rescore
  40. 2026-08-14 11:57 UTCEG score recompute
  41. 2026-08-14 11:57 UTCGHSA enrichment
  42. 2026-08-13 21:57 UTCEPSS rescore
  43. 2026-08-13 10:06 UTCEG score recompute
  44. 2026-08-13 10:06 UTCGHSA enrichment
  45. 2026-08-12 13:47 UTCEPSS rescore
  46. 2026-08-12 08:13 UTCEG score recompute
  47. 2026-08-12 08:13 UTCGHSA enrichment
  48. 2026-08-11 05:41 UTCEG score recompute
  49. 2026-08-11 05:41 UTCGHSA enrichment
  50. 2026-08-10 03:49 UTCEG score recompute
  51. 2026-08-10 03:49 UTCGHSA enrichment
  52. 2026-08-09 13:43 UTCEPSS rescore
  53. 2026-08-09 01:58 UTCEG score recompute
  54. 2026-08-09 01:58 UTCGHSA enrichment
  55. 2026-08-08 16:33 UTCEPSS rescore
  56. 2026-08-08 00:05 UTCEG score recompute
  57. 2026-08-08 00:05 UTCGHSA enrichment
  58. 2026-08-07 16:23 UTCEPSS rescore
  59. 2026-08-06 22:14 UTCEG score recompute
  60. 2026-08-06 22:13 UTCGHSA enrichment
  61. 2026-08-06 13:43 UTCEPSS rescore
  62. 2026-08-05 20:21 UTCEG score recompute
  63. 2026-08-05 20:21 UTCGHSA enrichment
  64. 2026-08-05 19:14 UTCEPSS rescore
  65. 2026-08-04 17:33 UTCEG score recompute
  66. 2026-08-04 17:33 UTCGHSA enrichment
  67. 2026-08-04 15:06 UTCEPSS rescore
  68. 2026-08-04 10:34 UTCEPSS rescore
  69. 2026-08-03 15:27 UTCEG score recompute
  70. 2026-08-03 15:27 UTCGHSA enrichment
  71. 2026-08-03 10:32 UTCEPSS rescore
  72. 2026-08-02 13:21 UTCEG score recompute
  73. 2026-08-02 13:21 UTCGHSA enrichment
  74. 2026-08-02 02:23 UTCEPSS rescore
  75. 2026-08-01 11:28 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2020-25900?
CVE-2020-25900 is a medium vulnerability published on June 5, 2026. HelloTalk through 3.4.1 stores full-precision GPS coordinates even when the user had intended to share only a country or city. Furthermore, these coordinates are placed into a database on the client of other users. (The client side was changed in 2019 to encrypt that database.)
When was CVE-2020-25900 disclosed?
CVE-2020-25900 was first published on June 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-25900 actively exploited?
CVE-2020-25900 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (9th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2020-25900?
CVE-2020-25900 has a CVSS base score of 5.3 (the CNA's own assessment, by mitre; NVD's own analysis pending).
How do I remediate CVE-2020-25900?
No fix for CVE-2020-25900 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2020-25900 are linked in the Vendor Advisories panel on this page.

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