CVE-2026-76649

MEDIUMPre-NVD 5.35.3
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

This medium-severity CVE scores 5.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3% (17th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
Trending — 3 sources updated this week
5.3EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 5.3Exploit: None knownExposed services: Not assessed

A fix is referenced (a reference tagged "Patch", often a source commit), but no release containing it is confirmed — find the release that contains it; until it is applied, mitigate (WAF / firewall / segmentation).

A NULL pointer dereference vulnerability exists in TL-WR841N v14 in the UPnP service when processing SOAP action requests. A specially crafted SOAP action request containing unexpected XML content may cause the UPnP daemon to terminate unexpectedly.

Successful exploitation may result in a denial-of-service condition affecting UPnP functionality until the service is restarted or the device is rebooted.

CVSS v3
5.3
EG Score
5.3MEDIUMmedium confidence
EG Risk
24
EG Risk 24/100

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 (value × EchelonGraph’s weight)
Severity53% × 45%
The EG Score, 5.3 of 10.
Exploitation0.3% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines; until then, restrict network exposure of the affected system or apply the vendor's mitigation.
EPSS PROB
0.3%
EPSS %ILE
17th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

August 28, 2026

Last Modified

September 1, 2026

Advisory Details (3)

Auto-updated Aug 28, 2026
Fix referenced — no release confirmed yet.
Web page

Security Advisory: Multiple Vulnerabilities in TP-Link TL-WR841N (CVE-2026-76649, CVE-2026-76650 & CVE-2026-76651)

https://www.tp-link.com/us/support/faq/5270/

Vendor Advisories for CVE-2026-76649(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 17× in last 7d / 77× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 123 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 23 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  2. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  3. 2026-10-12 15:38 UTCEG score recompute
  4. 2026-10-11 19:24 UTCEG score recompute
  5. 2026-10-11 16:39 UTCEG score recompute
  6. 2026-10-11 13:58 UTCEG score recompute
  7. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  8. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  9. 2026-10-10 05:15 UTCEG score recompute
  10. 2026-10-10 05:15 UTCGHSA enrichmentGHSA-2cvh-668x-j624
  11. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  12. 2026-10-09 02:37 UTCEG score recompute
  13. 2026-10-09 02:37 UTCGHSA enrichmentGHSA-2cvh-668x-j624
  14. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  15. 2026-10-08 00:49 UTCEG score recompute
  16. 2026-10-08 00:48 UTCGHSA enrichmentGHSA-2cvh-668x-j624
  17. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  18. 2026-10-06 19:12 UTCEG score recompute
  19. 2026-10-06 19:12 UTCGHSA enrichmentGHSA-2cvh-668x-j624
  20. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  21. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  22. 2026-10-05 17:16 UTCEG score recompute
  23. 2026-10-05 17:16 UTCGHSA enrichmentGHSA-2cvh-668x-j624
  24. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  25. 2026-10-04 15:33 UTCEG score recompute
Show 75 more
  1. 2026-10-04 15:33 UTCGHSA enrichmentGHSA-2cvh-668x-j624
  2. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  3. 2026-10-03 13:38 UTCEG score recompute
  4. 2026-10-03 13:38 UTCGHSA enrichmentGHSA-2cvh-668x-j624
  5. 2026-10-02 07:14 UTCEG score recompute
  6. 2026-10-02 07:14 UTCGHSA enrichmentGHSA-2cvh-668x-j624
  7. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  8. 2026-10-01 05:31 UTCEG score recompute
  9. 2026-10-01 05:31 UTCGHSA enrichmentGHSA-2cvh-668x-j624
  10. 2026-09-30 03:49 UTCEG score recompute
  11. 2026-09-30 03:49 UTCGHSA enrichmentGHSA-2cvh-668x-j624
  12. 2026-09-29 15:24 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  13. 2026-09-28 21:07 UTCEG score recompute
  14. 2026-09-28 21:07 UTCGHSA enrichmentGHSA-2cvh-668x-j624
  15. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  16. 2026-09-27 17:23 UTCEG score recompute
  17. 2026-09-27 17:23 UTCGHSA enrichmentGHSA-2cvh-668x-j624
  18. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  19. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  20. 2026-09-26 15:34 UTCEG score recompute
  21. 2026-09-26 15:33 UTCGHSA enrichmentGHSA-2cvh-668x-j624
  22. 2026-09-26 00:28 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  23. 2026-09-25 12:23 UTCEG score recompute
  24. 2026-09-25 12:23 UTCGHSA enrichmentGHSA-2cvh-668x-j624
  25. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  26. 2026-09-24 10:40 UTCEG score recompute
  27. 2026-09-24 10:40 UTCGHSA enrichmentGHSA-2cvh-668x-j624
  28. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  29. 2026-09-23 08:57 UTCEG score recompute
  30. 2026-09-23 08:57 UTCGHSA enrichmentGHSA-2cvh-668x-j624
  31. 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  32. 2026-09-22 07:14 UTCEG score recompute
  33. 2026-09-22 07:13 UTCGHSA enrichmentGHSA-2cvh-668x-j624
  34. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  35. 2026-09-21 05:30 UTCEG score recompute
  36. 2026-09-21 05:30 UTCGHSA enrichmentGHSA-2cvh-668x-j624
  37. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  38. 2026-09-20 03:47 UTCEG score recompute
  39. 2026-09-20 03:47 UTCGHSA enrichmentGHSA-2cvh-668x-j624
  40. 2026-09-19 02:04 UTCEG score recompute
  41. 2026-09-19 02:04 UTCGHSA enrichmentGHSA-2cvh-668x-j624
  42. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  43. 2026-09-18 00:22 UTCEG score recompute
  44. 2026-09-18 00:22 UTCGHSA enrichmentGHSA-2cvh-668x-j624
  45. 2026-09-16 22:39 UTCEG score recompute
  46. 2026-09-16 22:39 UTCGHSA enrichmentGHSA-2cvh-668x-j624
  47. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  48. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  49. 2026-09-15 20:56 UTCEG score recompute
  50. 2026-09-15 20:56 UTCGHSA enrichmentGHSA-2cvh-668x-j624
  51. 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  52. 2026-09-14 18:45 UTCGHSA enrichmentGHSA-2cvh-668x-j624
  53. 2026-09-13 16:54 UTCEG score recompute
  54. 2026-09-13 16:54 UTCGHSA enrichmentGHSA-2cvh-668x-j624
  55. 2026-09-12 15:11 UTCEG score recompute
  56. 2026-09-12 15:11 UTCGHSA enrichmentGHSA-2cvh-668x-j624
  57. 2026-09-12 15:02 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  58. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  59. 2026-09-11 13:28 UTCEG score recompute
  60. 2026-09-11 13:28 UTCGHSA enrichmentGHSA-2cvh-668x-j624
  61. 2026-09-10 11:45 UTCEG score recompute
  62. 2026-09-10 11:45 UTCGHSA enrichmentGHSA-2cvh-668x-j624
  63. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  64. 2026-09-09 09:08 UTCEG score recompute
  65. 2026-09-09 09:08 UTCGHSA enrichmentGHSA-2cvh-668x-j624
  66. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  67. 2026-09-08 07:25 UTCEG score recompute
  68. 2026-09-08 07:25 UTCGHSA enrichmentGHSA-2cvh-668x-j624
  69. 2026-09-07 05:43 UTCEG score recompute
  70. 2026-09-07 05:43 UTCGHSA enrichmentGHSA-2cvh-668x-j624
  71. 2026-09-06 13:48 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  72. 2026-09-06 03:59 UTCEG score recompute
  73. 2026-09-06 03:59 UTCGHSA enrichmentGHSA-2cvh-668x-j624
  74. 2026-09-05 02:16 UTCEG score recompute
  75. 2026-09-05 02:16 UTCGHSA enrichmentGHSA-2cvh-668x-j624

Frequently asked(5)

What is CVE-2026-76649?
CVE-2026-76649 is a medium-severity vulnerability; its CVE record was published on August 28, 2026. A NULL pointer dereference vulnerability exists in TL-WR841N v14 in the UPnP service when processing SOAP action requests. A specially crafted SOAP action request containing unexpected XML content may cause the UPnP daemon to terminate unexpectedly. Successful exploitation may result in a…
When was the CVE record for CVE-2026-76649 published?
The CVE record for CVE-2026-76649 was published on August 28, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of September 1, 2026; the record at its source may have been updated since.
Is CVE-2026-76649 actively exploited?
CVE-2026-76649 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (17th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-76649?
CVE-2026-76649 has a CVSS base score of 5.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-76649?
A fix for CVE-2026-76649 is referenced (a reference tagged "Patch", often a source commit), but EchelonGraph has no release containing it on record. Check that reference and the vendor's advisory for a release that contains the fix and update to it; until then, restrict network exposure of the affected system or apply the vendor's mitigation. The vendor advisories EchelonGraph has for CVE-2026-76649 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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