CVE-2026-13516

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-06-29. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.8Exploit: NoneExposed: 0

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

A vulnerability was detected in Tenda JD12L 16.03.53.23. The affected element is the function fromSetWifiGusetBasic of the file /goform/WifiGuestSet. Performing a manipulation of the argument shareSpeed results in stack-based buffer overflow. The attack may be initiated remotely. The exploit is now public and may be used.

CVSS v3
8.8
EG Score
8.8(high)
EPSS
37.1%
KEV
Not listed

Published

June 28, 2026

Last Modified

June 29, 2026

Advisory Details (2)

Auto-updated Jun 29, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

腾达(Tenda) 腾达中文网站 - 致力于建设值得信赖的好网络

https://www.tenda.com.cn/
generic🟡 PoC Available

Tenda Router Latest version JD12L Pro V16.03.53.23 - Buffer Overflow in `/goform/WifiGuestSet` · Issue #2 · cve-a/Vampirensa · GitHub

https://github.com/cve-a/Vampirensa/issues/2

Vendor Advisories for CVE-2026-13516(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 36× in last 7d / 46× 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. 2026-07-07 01:09 UTCEG score recompute
  2. 2026-07-07 01:09 UTCGHSA enrichment
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 13:06 UTCEG score recompute
  5. 2026-07-06 13:05 UTCGHSA enrichment
  6. 2026-07-06 02:23 UTCEPSS rescore
  7. 2026-07-06 01:02 UTCEG score recompute
  8. 2026-07-06 01:02 UTCGHSA enrichment
  9. 2026-07-05 12:52 UTCEG score recompute
  10. 2026-07-05 12:52 UTCGHSA enrichment
  11. 2026-07-05 02:30 UTCEPSS rescore
  12. 2026-07-05 02:30 UTCEPSS rescore
  13. 2026-07-05 00:48 UTCEG score recompute
  14. 2026-07-05 00:47 UTCGHSA enrichment
  15. 2026-07-04 12:45 UTCEG score recompute
  16. 2026-07-04 12:44 UTCGHSA enrichment
  17. 2026-07-04 06:31 UTCEPSS rescore
  18. 2026-07-04 00:41 UTCEG score recompute
  19. 2026-07-04 00:41 UTCGHSA enrichment
  20. 2026-07-03 12:35 UTCEG score recompute
  21. 2026-07-03 12:35 UTCGHSA enrichment
  22. 2026-07-03 00:27 UTCEG score recompute
  23. 2026-07-03 00:27 UTCGHSA enrichment
  24. 2026-07-02 12:24 UTCEG score recompute
  25. 2026-07-02 12:24 UTCGHSA enrichment
Show 21 more
  1. 2026-07-02 00:21 UTCEG score recompute
  2. 2026-07-02 00:20 UTCGHSA enrichment
  3. 2026-07-01 15:06 UTCEPSS rescore
  4. 2026-07-01 15:06 UTCEPSS rescore
  5. 2026-07-01 12:17 UTCEG score recompute
  6. 2026-07-01 12:17 UTCGHSA enrichment
  7. 2026-07-01 00:11 UTCEG score recompute
  8. 2026-07-01 00:11 UTCGHSA enrichment
  9. 2026-06-30 23:22 UTCEPSS rescore
  10. 2026-06-30 12:08 UTCEG score recompute
  11. 2026-06-30 12:08 UTCGHSA enrichment
  12. 2026-06-30 00:05 UTCEG score recompute
  13. 2026-06-30 00:05 UTCGHSA enrichment
  14. 2026-06-29 15:26 UTCNVD updateCVSS v4 → 7.4
  15. 2026-06-29 14:52 UTCMITRE cvelistV5CVSS v4 → 8.7
  16. 2026-06-29 14:06 UTCEPSS rescore
  17. 2026-06-29 12:01 UTCEG score recompute
  18. 2026-06-29 12:01 UTCGHSA enrichment
  19. 2026-06-29 02:03 UTCNVD updateCVSS v4 → 7.4
  20. 2026-06-28 23:58 UTCEG score recompute
  21. 2026-06-28 23:57 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-13516?
CVE-2026-13516 is a high vulnerability published on June 28, 2026. A vulnerability was detected in Tenda JD12L 16.03.53.23. The affected element is the function fromSetWifiGusetBasic of the file /goform/WifiGuestSet. Performing a manipulation of the argument shareSpeed results in stack-based buffer overflow. The attack may be initiated remotely. The exploit is now…
When was CVE-2026-13516 disclosed?
CVE-2026-13516 was first published in the National Vulnerability Database on June 28, 2026, with the most recent update on June 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-13516 actively exploited?
CVE-2026-13516 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 37.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-13516?
CVE-2026-13516 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-13516?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-13516, 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-2026-13516

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