CVE-2026-12807

MEDIUMPre-NVD 6.36.3—
EchelonGraph scoreHIGH confidence

Score 6.3 from GitHub Security Advisory (severity: LOW) published 2026-06-21. a secondary CVSS source baseline 6.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 1%CVSS: 6.3Exploit: NoneExposed: 0

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

A vulnerability was found in Edimax BR-6478AC V2 1.23. This affects the function setWAN of the file /goform/setWAN of the component POST Request Handler. The manipulation of the argument pppUserName/pptpUserName/L2TPUserName results in command injection. It is possible to launch the attack remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS v3
6.3
EG Score
6.3(high)
EPSS
64.0%
KEV
Not listed

Published

June 21, 2026

Last Modified

June 22, 2026

Advisory Details (1)

Auto-updated Jun 22, 2026
No patch confirmed yet.
generic

Notion

https://lavender-bicycle-a5a.notion.site/EDIMAX-BR6478ACV2-setWAN-34b53a41781f80b98c4be24d8cae61b1?source=copy_link

Vendor Advisories for CVE-2026-12807(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 22× in last 7d / 49× 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. 2026-07-06 16:27 UTCEPSS rescore
  2. 2026-07-06 10:30 UTCEG score recompute
  3. 2026-07-06 10:29 UTCGHSA enrichment
  4. 2026-07-06 02:23 UTCEPSS rescore
  5. 2026-07-05 11:19 UTCEG score recompute
  6. 2026-07-05 11:19 UTCGHSA enrichment
  7. 2026-07-05 02:30 UTCEPSS rescore
  8. 2026-07-05 02:30 UTCEPSS rescore
  9. 2026-07-04 12:10 UTCEG score recompute
  10. 2026-07-04 12:09 UTCGHSA enrichment
  11. 2026-07-04 06:31 UTCEPSS rescore
  12. 2026-07-03 12:56 UTCEG score recompute
  13. 2026-07-03 12:56 UTCGHSA enrichment
  14. 2026-07-02 12:38 UTCEG score recompute
  15. 2026-07-02 12:38 UTCGHSA enrichment
  16. 2026-07-01 15:06 UTCEPSS rescore
  17. 2026-07-01 15:06 UTCEPSS rescore
  18. 2026-07-01 13:27 UTCEG score recompute
  19. 2026-07-01 13:27 UTCGHSA enrichment
  20. 2026-06-30 23:22 UTCEPSS rescore
  21. 2026-06-30 14:18 UTCEG score recompute
  22. 2026-06-30 14:17 UTCGHSA enrichment
  23. 2026-06-29 15:06 UTCEG score recompute
  24. 2026-06-29 15:06 UTCGHSA enrichment
  25. 2026-06-29 14:06 UTCEPSS rescore
Show 24 more
  1. 2026-06-28 15:57 UTCEG score recompute
  2. 2026-06-28 15:57 UTCGHSA enrichment
  3. 2026-06-28 14:07 UTCEPSS rescore
  4. 2026-06-28 04:56 UTCEPSS rescore
  5. 2026-06-28 04:56 UTCEPSS rescore
  6. 2026-06-27 16:48 UTCEG score recompute
  7. 2026-06-27 16:48 UTCGHSA enrichment
  8. 2026-06-27 03:08 UTCEPSS rescore
  9. 2026-06-26 17:39 UTCEG score recompute
  10. 2026-06-26 17:39 UTCGHSA enrichment
  11. 2026-06-25 18:30 UTCEG score recompute
  12. 2026-06-25 18:30 UTCGHSA enrichment
  13. 2026-06-25 13:49 UTCEPSS rescore
  14. 2026-06-24 19:21 UTCEG score recompute
  15. 2026-06-24 19:21 UTCGHSA enrichment
  16. 2026-06-24 14:05 UTCEPSS rescore
  17. 2026-06-23 21:32 UTCEPSS rescore
  18. 2026-06-23 20:08 UTCEG score recompute
  19. 2026-06-23 20:08 UTCGHSA enrichment
  20. 2026-06-22 20:56 UTCEG score recompute
  21. 2026-06-22 20:55 UTCGHSA enrichment
  22. 2026-06-22 19:39 UTCNVD updateCVSS v4 → 2.1 · severity → MEDIUM
  23. 2026-06-21 21:44 UTCEG score recompute
  24. 2026-06-21 21:44 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-12807?
CVE-2026-12807 is a medium vulnerability published on June 21, 2026. A vulnerability was found in Edimax BR-6478AC V2 1.23. This affects the function setWAN of the file /goform/setWAN of the component POST Request Handler. The manipulation of the argument pppUserName/pptpUserName/L2TPUserName results in command injection. It is possible to launch the attack…
When was CVE-2026-12807 disclosed?
CVE-2026-12807 was first published in the National Vulnerability Database on June 21, 2026, with the most recent update on June 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-12807 actively exploited?
CVE-2026-12807 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 64.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-12807?
CVE-2026-12807 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2026-12807?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-12807, 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

Explore the affected products and dependency analysis for CVE-2026-12807

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