CVE-2026-43267

MEDIUMNVD 5.55.5
EchelonGraph scoreMEDIUM confidence

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

Score 5.5 from GitHub Security Advisory published 2026-05-06. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
5.5EG
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: 0.2%CVSS: 5.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

In the Linux kernel, the following vulnerability has been resolved:

wifi: rtw89: fix potential zero beacon interval in beacon tracking

During fuzz testing, it was discovered that bss_conf->beacon_int might be zero, which could result in a division by zero error in subsequent calculations. Set a default value of 100 TU if the interval is zero to ensure stability.

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
25
EG Risk 25/100

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)
Severity55% × 45%
The EG Score, 5.5 of 10.
Exploitation0.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's BOD 26-04 default: no one has published Automatable for this CVE, and CISA treats it as “no” for a CVE not in KEV.
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from 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 available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
4th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from 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)14 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's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). Where an input reads “CISA's BOD 26-04 default”, no one has published it for this CVE, and CISA's implementation guidance says: “If “Automatable” and “Technical Impact” information items about a CVE ID are not available and the CVE ID is not in the KEV Catalog, CISA will treat its values as “no” and “total,” respectively, until CISA or a third party provides metadata about the CVE ID. CISA will always provide the Vulnrichment data for a CVE ID listed in the KEV Catalog.” 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

May 6, 2026

Last Modified

May 8, 2026

Advisory Details (3)

Auto-updated Aug 5, 2026
Patch available.
Web page

wifi: rtw89: fix potential zero beacon interval in beacon tracking - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/eb57be32f438c57c88d6ce756101c1dfbcc03bba
Web page

wifi: rtw89: fix potential zero beacon interval in beacon tracking - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e00c9a4ec84c0bb067833b34202f457badbbc1c1
Web page

wifi: rtw89: fix potential zero beacon interval in beacon tracking - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1260bee01493126cf9c872b6ca2af261173baa6d

Vendor Advisories for CVE-2026-43267(1)

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

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
linuxKernel @ 6.18.16 (fixes >=6.18.0)—osv

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 6.19~rc8-1~exp1 (117 versions)
  • every version up to 6.19.6-1: fixed in 6.19.6-1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 25× 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 218 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 118 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  2. 2026-10-12 16:06 UTCEG score recompute
  3. 2026-10-11 19:48 UTCEG score recompute
  4. 2026-10-11 17:02 UTCEG score recompute
  5. 2026-10-11 14:28 UTCEG score recompute
  6. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  7. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  8. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  9. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  10. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  11. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  12. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  13. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  14. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  15. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  16. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  17. 2026-09-30 09:41 UTCOSV refresh
  18. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  19. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  20. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  21. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  22. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  23. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  24. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  25. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.1% · 1st percentile
Show 75 more
  1. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  2. 2026-09-11 16:10 UTCOSV refresh
  3. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  4. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  5. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  6. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  7. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  8. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  9. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  10. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  11. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  12. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  13. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  14. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  15. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  16. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  17. 2026-08-23 19:52 UTCEG score recompute
  18. 2026-08-23 19:52 UTCVendor advisory
  19. 2026-08-23 19:52 UTCGHSA enrichmentGHSA-jgp7-74rh-r6jv · GitHub CVSS 5.5
  20. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  21. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  22. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  23. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  24. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  25. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  26. 2026-08-17 12:54 UTCEG score recompute
  27. 2026-08-17 12:54 UTCVendor advisory
  28. 2026-08-17 12:54 UTCGHSA enrichmentGHSA-jgp7-74rh-r6jv · GitHub CVSS 5.5
  29. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  30. 2026-08-16 04:52 UTCEG score recompute
  31. 2026-08-16 04:52 UTCVendor advisory
  32. 2026-08-16 04:52 UTCGHSA enrichmentGHSA-jgp7-74rh-r6jv · GitHub CVSS 5.5
  33. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  34. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  35. 2026-08-15 01:09 UTCGHSA enrichmentGHSA-jgp7-74rh-r6jv · GitHub CVSS 5.5
  36. 2026-08-14 03:25 UTCEG score recompute
  37. 2026-08-14 03:25 UTCVendor advisory
  38. 2026-08-14 03:25 UTCGHSA enrichmentGHSA-jgp7-74rh-r6jv · GitHub CVSS 5.5
  39. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  40. 2026-08-12 20:56 UTCEG score recompute
  41. 2026-08-12 20:56 UTCGHSA enrichmentGHSA-jgp7-74rh-r6jv · GitHub CVSS 5.5
  42. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  43. 2026-08-11 23:13 UTCVendor advisory
  44. 2026-08-11 23:13 UTCGHSA enrichmentGHSA-jgp7-74rh-r6jv · GitHub CVSS 5.5
  45. 2026-08-11 01:31 UTCEG score recompute
  46. 2026-08-11 01:31 UTCVendor advisory
  47. 2026-08-11 01:31 UTCGHSA enrichmentGHSA-jgp7-74rh-r6jv · GitHub CVSS 5.5
  48. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  49. 2026-08-10 00:17 UTCEG score recompute
  50. 2026-08-10 00:17 UTCVendor advisory
  51. 2026-08-10 00:17 UTCGHSA enrichmentGHSA-jgp7-74rh-r6jv · GitHub CVSS 5.5
  52. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  53. 2026-08-09 02:34 UTCEG score recompute
  54. 2026-08-09 02:34 UTCVendor advisory
  55. 2026-08-09 02:34 UTCGHSA enrichmentGHSA-jgp7-74rh-r6jv · GitHub CVSS 5.5
  56. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  57. 2026-08-07 17:46 UTCEG score recompute
  58. 2026-08-07 17:46 UTCGHSA enrichmentGHSA-jgp7-74rh-r6jv · GitHub CVSS 5.5
  59. 2026-08-06 20:03 UTCEG score recompute
  60. 2026-08-06 20:03 UTCVendor advisory
  61. 2026-08-06 20:03 UTCGHSA enrichmentGHSA-jgp7-74rh-r6jv · GitHub CVSS 5.5
  62. 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  63. 2026-08-05 22:20 UTCEG score recompute
  64. 2026-08-05 22:20 UTCVendor advisory
  65. 2026-08-05 22:20 UTCGHSA enrichmentGHSA-jgp7-74rh-r6jv · GitHub CVSS 5.5
  66. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  67. 2026-08-04 15:10 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  68. 2026-08-04 10:38 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  69. 2026-08-04 00:36 UTCEG score recompute
  70. 2026-08-04 00:36 UTCGHSA enrichmentGHSA-jgp7-74rh-r6jv · GitHub CVSS 5.5
  71. 2026-08-03 10:36 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  72. 2026-08-03 02:52 UTCVendor advisory
  73. 2026-08-03 02:52 UTCGHSA enrichmentGHSA-jgp7-74rh-r6jv · GitHub CVSS 5.5
  74. 2026-08-02 05:06 UTCEG score recompute
  75. 2026-08-02 05:06 UTCVendor advisory

Frequently asked(5)

What is CVE-2026-43267?
CVE-2026-43267 is a medium-severity vulnerability; its CVE record was published on May 6, 2026. In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: fix potential zero beacon interval in beacon tracking During fuzz testing, it was discovered that bssconf->beaconint might be zero, which could result in a division by zero error in subsequent calculations. Set a…
When was the CVE record for CVE-2026-43267 published?
The CVE record for CVE-2026-43267 was published on May 6, 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 May 8, 2026; the record at its source may have been updated since.
Is CVE-2026-43267 actively exploited?
CVE-2026-43267 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (4th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-43267?
CVE-2026-43267 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-43267?
A fix for CVE-2026-43267 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-43267 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-43267

Explore →

Is Your Infrastructure Affected by CVE-2026-43267?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.