CVE-2021-25680

MEDIUMNVD 6.16.1—
EchelonGraph scoreMEDIUM confidence

Score 6.1 from GitHub Security Advisory published 2022-05-24. NVD baseline CVSS 6.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
6.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 2%CVSS: 6.1Exploit: Elevated riskExposed: 0

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

The AdTran Personal Phone Manager software is vulnerable to multiple reflected cross-site scripting (XSS) issues. These issues impact at minimum versions 10.8.1 and below but potentially impact later versions as well since they have not previously been disclosed. Only version 10.8.1 was able to be confirmed during primary research. NOTE: The affected appliances NetVanta 7060 and NetVanta 7100 are considered End of Life and as such this issue will not be patched.

CVSS v3
6.1
EG Score
6.1(medium)
EG Risk
48(Track)
EG Risk 48/100SSVC: 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
Severity61% × 45%
Exploitation40% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
2%
EPSS %ILE
83%
KEV
Not listed

Published

April 20, 2021

Last Modified

July 9, 2026

Advisory Details (1)

Auto-updated Jul 9, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

AdTran-Personal-Phone-Manager-Vulns/CVE-2021-25680.md at main · 3ndG4me/AdTran-Personal-Phone-Manager-Vulns · GitHub

https://github.com/3ndG4me/AdTran-Personal-Phone-Manager-Vulns/blob/main/CVE-2021-25680.md

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 33× 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 126 total refreshes for this CVE.

  1. 2026-08-20 22:52 UTCEPSS rescore
  2. 2026-08-19 17:01 UTCEPSS rescore
  3. 2026-08-18 13:45 UTCEPSS rescore
  4. 2026-08-17 13:44 UTCEPSS rescore
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  6. 2026-08-16 02:11 UTCEPSS rescore
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  8. 2026-08-15 01:27 UTCEPSS rescore
  9. 2026-08-13 21:57 UTCEPSS rescore
  10. 2026-08-12 13:47 UTCEPSS rescore
  11. 2026-08-11 13:38 UTCEPSS rescore
  12. 2026-08-09 13:43 UTCEPSS rescore
  13. 2026-08-08 16:33 UTCEPSS rescore
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  20. 2026-08-02 02:24 UTCEPSS rescore
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  24. 2026-07-30 01:28 UTCEPSS rescore
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  1. 2026-07-28 15:33 UTCEPSS rescore
  2. 2026-07-26 14:52 UTCEPSS rescore
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  4. 2026-07-25 14:15 UTCEPSS rescore
  5. 2026-07-24 14:15 UTCEPSS rescore
  6. 2026-07-23 14:16 UTCEPSS rescore
  7. 2026-07-23 01:58 UTCEG score recompute
  8. 2026-07-22 22:45 UTCEG score recompute
  9. 2026-07-22 14:06 UTCEPSS rescore
  10. 2026-07-22 14:06 UTCEPSS rescore
  11. 2026-07-21 15:22 UTCEPSS rescore
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  13. 2026-07-20 17:05 UTCEPSS rescore
  14. 2026-07-19 14:28 UTCEPSS rescore
  15. 2026-07-19 02:27 UTCEPSS rescore
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  17. 2026-07-18 10:02 UTCEPSS rescore
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  19. 2026-07-16 17:00 UTCEPSS rescore
  20. 2026-07-15 16:55 UTCEPSS rescore
  21. 2026-07-15 16:55 UTCEPSS rescore
  22. 2026-07-15 01:58 UTCEPSS rescore
  23. 2026-07-13 22:27 UTCEPSS rescore
  24. 2026-07-13 22:27 UTCEPSS rescore
  25. 2026-07-13 06:10 UTCEPSS rescore
  26. 2026-07-12 05:44 UTCEPSS rescore
  27. 2026-07-12 05:44 UTCEPSS rescore
  28. 2026-07-11 08:25 UTCEPSS rescore
  29. 2026-07-11 08:25 UTCEPSS rescore
  30. 2026-07-09 19:07 UTCEPSS rescore
  31. 2026-07-09 02:55 UTCNVD updateCVSS v3 → 6.1 · severity → MEDIUM
  32. 2026-07-09 01:24 UTCMITRE cvelistV5
  33. 2026-07-08 15:12 UTCEPSS rescore
  34. 2026-07-07 13:43 UTCEPSS rescore
  35. 2026-07-06 16:25 UTCEPSS rescore
  36. 2026-07-06 16:25 UTCEPSS rescore
  37. 2026-07-06 02:21 UTCEPSS rescore
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  39. 2026-07-05 02:28 UTCEPSS rescore
  40. 2026-07-04 06:29 UTCEPSS rescore
  41. 2026-07-04 06:29 UTCEPSS rescore
  42. 2026-07-02 16:57 UTCEPSS rescore
  43. 2026-07-01 15:03 UTCEPSS rescore
  44. 2026-06-30 23:20 UTCEPSS rescore
  45. 2026-06-30 23:20 UTCEPSS rescore
  46. 2026-06-28 14:05 UTCEPSS rescore
  47. 2026-06-28 04:54 UTCEPSS rescore
  48. 2026-06-28 04:54 UTCEPSS rescore
  49. 2026-06-27 03:06 UTCEPSS rescore
  50. 2026-06-27 03:06 UTCEPSS rescore
  51. 2026-06-25 13:48 UTCEPSS rescore
  52. 2026-06-25 13:48 UTCEPSS rescore
  53. 2026-06-24 14:03 UTCEPSS rescore
  54. 2026-06-24 14:03 UTCEPSS rescore
  55. 2026-06-23 21:31 UTCEPSS rescore
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  57. 2026-06-22 14:24 UTCEPSS rescore
  58. 2026-06-22 14:24 UTCEPSS rescore
  59. 2026-06-21 01:58 UTCEPSS rescore
  60. 2026-06-21 01:58 UTCEPSS rescore
  61. 2026-06-19 19:24 UTCEPSS rescore
  62. 2026-06-19 19:24 UTCEPSS rescore
  63. 2026-06-18 17:51 UTCEPSS rescore
  64. 2026-06-18 17:51 UTCEPSS rescore
  65. 2026-06-17 17:51 UTCEPSS rescore
  66. 2026-06-16 17:51 UTCEPSS rescore
  67. 2026-06-15 17:46 UTCEPSS rescore
  68. 2026-06-14 23:15 UTCEPSS rescore
  69. 2026-06-13 22:58 UTCEPSS rescore
  70. 2026-06-13 22:58 UTCEPSS rescore
  71. 2026-06-12 23:10 UTCEPSS rescore
  72. 2026-06-11 13:58 UTCEPSS rescore
  73. 2026-06-10 22:16 UTCEPSS rescore
  74. 2026-06-10 13:20 UTCEPSS rescore
  75. 2026-06-08 14:15 UTCEPSS rescore

Publicly available exploits

(1 reference)

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

  • Exploit-DBEDB-49786
    First seen Apr 21, 2021

    Adtran Personal Phone Manager 10.8.1 - 'Multiple' Reflected Cross-Site Scripting (XSS)

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2021-25680?
CVE-2021-25680 is a medium vulnerability published on April 20, 2021. The AdTran Personal Phone Manager software is vulnerable to multiple reflected cross-site scripting (XSS) issues. These issues impact at minimum versions 10.8.1 and below but potentially impact later versions as well since they have not previously been disclosed. Only version 10.8.1 was able to be…
When was CVE-2021-25680 disclosed?
CVE-2021-25680 was first published in the National Vulnerability Database on April 20, 2021, with the most recent update on July 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-25680 actively exploited?
CVE-2021-25680 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2% probability of exploitation in the next 30 days, which ranks it in the top 16.9% of all scored CVEs.
What is the CVSS score of CVE-2021-25680?
CVE-2021-25680 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2021-25680?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-25680, 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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