CVE-2026-64536

HIGHPre-NVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-07-27. a secondary CVSS source baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.1Exploit: None knownExposed: 0

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

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

staging: rtl8723bs: fix OOB reads in is_ap_in_tkip() IE loop

The loop in is_ap_in_tkip() iterates over IEs without verifying that enough bytes remain before dereferencing the IE header or its payload:

  • pIE->element_id and pIE->length are read without checking that
i + sizeof(*pIE) <= ie_length, so a truncated IE at the end of the buffer causes an OOB read.
  • For WLAN_EID_VENDOR_SPECIFIC the code compares pIE->data + 12,
which requires pIE->length >= 16. For WLAN_EID_RSN it compares pIE->data + 8, requiring pIE->length >= 12. Neither requirement is checked.

Add the missing IE header and payload bounds checks and guard each data access with an explicit pIE->length minimum, matching the pattern established in update_beacon_info().

CVSS v3
8.1
EG Score
8.1(medium)
EG Risk
41(Track)
EG Risk 41/100SSVC: 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
Severity81% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
16%
KEV
Not listed

Published

July 27, 2026

Last Modified

August 17, 2026

Advisory Details (7)

Auto-updated Jul 30, 2026
No patch confirmed yet.
generic

staging: rtl8723bs: fix OOB reads in is_ap_in_tkip() IE loop - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ea3809f7e20bdff282b8cc1e94937d5fb9fb32c7
generic

staging: rtl8723bs: fix OOB reads in is_ap_in_tkip() IE loop - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d2055332297e24c63fffda943ef7a5eefc0a6019
generic

staging: rtl8723bs: fix OOB reads in is_ap_in_tkip() IE loop - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a6105ea8ca6ebbc04beaf3bcbf7dbb5985f5d395
generic

staging: rtl8723bs: fix OOB reads in is_ap_in_tkip() IE loop - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6f26cc55affd9d7f88ae2f5d12db4ecf9072c209
generic

staging: rtl8723bs: fix OOB reads in is_ap_in_tkip() IE loop - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4380b3860d887a13555ff024a58dfc05b490dfd6
generic

staging: rtl8723bs: fix OOB reads in is_ap_in_tkip() IE loop - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3bf39f711ff27c64be8680a8938bcc5001982e81
generic

staging: rtl8723bs: fix OOB reads in is_ap_in_tkip() IE loop - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/204b22c8df115370037248859bf0fa62db73a396

Vendor Advisories for CVE-2026-64536(1)

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

Affected Packages

(6 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 7.2~rc5-1~exp1 (500 versions)——
linux-6.16.1.106-3~deb11u1 ... 6.1.177-1~deb11u1 (22 versions)6.1.180-1~deb11u1—
Debian:12(2)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 6.1.99-1 (55 versions)6.1.180-1—
linux-6.12—6.12.100-1~deb12u1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.95-1~bpo12+1 (30 versions)6.12.96-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.1~rc7-1~exp1 (156 versions)7.1.4-1—

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 29× in last 7d / 149× 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 164 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-64536?
CVE-2026-64536 is a high vulnerability published on July 27, 2026. In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix OOB reads in isapin_tkip() IE loop The loop in isapin_tkip() iterates over IEs without verifying that enough bytes remain before dereferencing the IE header or its payload: pIE->element_id and pIE->length…
When was CVE-2026-64536 disclosed?
CVE-2026-64536 was first published in the National Vulnerability Database on July 27, 2026, with the most recent update on August 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-64536 actively exploited?
CVE-2026-64536 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 83.9% of all scored CVEs.
What is the CVSS score of CVE-2026-64536?
CVE-2026-64536 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-64536?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-64536, 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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