CVE-2026-12935

HIGHPre-NVD 8.78.7—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.7 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.9%, top 42% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
8.7EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.7Exploit: None knownExposed: 0

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

The TL-WR940N v6 router contains a vulnerability in its RTSP connection tracking module that can lead to a stack-based buffer overflow. The issue occurs when a LAN client initiates a connection to a malicious RTSP server controlled by an attacker. A specially crafted RTSP message may trigger improper memory handling within the kernel module

Successful exploitation of this vulnerability may result in a denial-of-service (DoS) condition or allow remote code execution (RCE), potentially leading to full compromise of the device. This vulnerability can be exploited by an unauthenticated attacker under the device's default configuration.

CVSS v3
8.7
EG Score
8.7(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity87% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
58%
KEV
Not listed

Published

July 29, 2026

Last Modified

July 30, 2026

Advisory Details (4)

Auto-updated Jul 29, 2026
No patch confirmed yet.
generic

Security Advisory: Unauthenticated Remote Code Execution in TP-Link TL-WR940N RTSP Conntrack Feature (CVE-2026-12935)

https://www.tp-link.com/us/support/faq/5213/
generic

TL-WR940N のコンテンツ | TP-Link 日本

https://www.tp-link.com/jp/support/download/tl-wr940n/v6/#Firmware
generic

Download for TL-WR940N | TP-Link

https://www.tp-link.com/en/support/download/tl-wr940n/v6/#Firmware
generic

Download for TL-WR940N | TP-Link

https://www.tp-link.com/us/support/download/tl-wr940n/v6/#Firmware

Vendor Advisories for CVE-2026-12935(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 22× in last 7d / 93× 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 168 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-12935?
CVE-2026-12935 is a high vulnerability published on July 29, 2026. The TL-WR940N v6 router contains a vulnerability in its RTSP connection tracking module that can lead to a stack-based buffer overflow. The issue occurs when a LAN client initiates a connection to a malicious RTSP server controlled by an attacker. A specially crafted RTSP message may trigger…
When was CVE-2026-12935 disclosed?
CVE-2026-12935 was first published in the National Vulnerability Database on July 29, 2026, with the most recent update on July 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-12935 actively exploited?
CVE-2026-12935 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 42.0% of all scored CVEs.
What is the CVSS score of CVE-2026-12935?
CVE-2026-12935 has a CVSS v3 base score of 8.7 (NVD).
How do I remediate CVE-2026-12935?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-12935, 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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