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CVE-2026-53208

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: reject BR/EDR signaling packets over MTUsig net/bluetooth/l2cap_core.c:l2cap_sig_channel() accepts BR/EDR signaling packets up to the channel MTU and dispatches each command without enforcing the signaling MTU (MTUsig). A Bluetooth BR/EDR peer within radio range can send a fixed-channel CID 0x0001 packet that is larger than MTUsig and contains many L2CAP_ECHO_REQ commands before pairing. In a real-radio stock
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:0501c76e8404f101ac7fae92e948592ef165603c18e71e0d14416c660b8afaf2
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Linux","programFiles":["include/net/bluetooth/l2cap.h","net/bluetooth/l2cap_core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"e05c4ac575b457978a7ef441053394169084869c","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"fa5823126239b3e453fac1a2fe50726c7f4a55e1","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"b20e8a98dd29b121f58fcdf51e8576119aba536a","status":"affected…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:67e52c824effa84d79165a400660c84975007cc6e67a1be3b87e3e0f27c80554 · sha256:bb40d823f44c1ed3… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["include/net/bluetooth/l2cap.h","net/bluetooth/l2cap_core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.12"},{"lessThan":"2.6.12","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:67e52c824effa84d79165a400660c84975007cc6e67a1be3b87e3e0f27c80554 · sha256:bb40d823f44c1ed3… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["include/net/bluetooth/l2cap.h","net/bluetooth/l2cap_core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"e05c4ac575b457978a7ef441053394169084869c","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"fa5823126239b3e453fac1a2fe50726c7f4a55e1","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"b20e8a98dd29b121f58fcdf51e8576119aba536a","status":"affected…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:67e52c824effa84d79165a400660c84975007cc6e67a1be3b87e3e0f27c80554 · sha256:bb40d823f44c1ed3… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["include/net/bluetooth/l2cap.h","net/bluetooth/l2cap_core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.12"},{"lessThan":"2.6.12","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:67e52c824effa84d79165a400660c84975007cc6e67a1be3b87e3e0f27c80554 · sha256:bb40d823f44c1ed3… · /containers/cna/affected/1

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/214a2042b16b3c8d798a8b9ef9f36094f13a9859"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:67e52c824effa84d79165a400660c84975007cc6e67a1be3b87e3e0f27c80554 · sha256:bb40d823f44c1ed3… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/a8335f3db15bd1e0e82e0db5d488fabc7d10d1ab"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:67e52c824effa84d79165a400660c84975007cc6e67a1be3b87e3e0f27c80554 · sha256:bb40d823f44c1ed3… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/b20e8a98dd29b121f58fcdf51e8576119aba536a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:67e52c824effa84d79165a400660c84975007cc6e67a1be3b87e3e0f27c80554 · sha256:bb40d823f44c1ed3… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/dd214733544427587a95f66dbf3adff072568990"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:67e52c824effa84d79165a400660c84975007cc6e67a1be3b87e3e0f27c80554 · sha256:bb40d823f44c1ed3… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/dedc92b96dc1d8919a3bdf2495ede68922ef7ebc"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:67e52c824effa84d79165a400660c84975007cc6e67a1be3b87e3e0f27c80554 · sha256:bb40d823f44c1ed3… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/e05c4ac575b457978a7ef441053394169084869c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:67e52c824effa84d79165a400660c84975007cc6e67a1be3b87e3e0f27c80554 · sha256:bb40d823f44c1ed3… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/e2b8acf9405bd9b1baf1c54dc897b0905db689bf"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:67e52c824effa84d79165a400660c84975007cc6e67a1be3b87e3e0f27c80554 · sha256:bb40d823f44c1ed3… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/fa5823126239b3e453fac1a2fe50726c7f4a55e1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:67e52c824effa84d79165a400660c84975007cc6e67a1be3b87e3e0f27c80554 · sha256:bb40d823f44c1ed3… · /containers/cna/references/1

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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