CVE Explorer

CVE-2026-64539

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: eir: Fix stack OOB write when prepending the Flags AD eir_create_adv_data() builds the advertising data into a fixed-size buffer ("size", 31 for the legacy path). It may prepend a 3-byte "Flags" AD structure (LE_AD_NO_BREDR on an LE-only controller) and then copies the per-instance data without checking that it still fits: memcpy(ptr, adv->adv_data, adv->adv_data_len); tlv_data_max_len() only reserves those 3 byt

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:37719f39d8d1907330ccbb8ee1e2b1e305236d0158875d8e072b936894558572

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"affected","product":"Linux","programFiles":["net/bluetooth/eir.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.1"},{"lessThan":"4.1","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.178","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.97","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.40","versionType":"semver"},{"lessThanOrEqu…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:529ccaafb0d36cc26e72fdfc44dc24e4b6dc89f3550daf7d550bb5c680d168bc · sha256:ae5a0bba02dd6dda… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/bluetooth/eir.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"0f0b6232af56441d0a2dcb173cc4f8d8aab39014","status":"affected","version":"b44133ff03be30b55f23036e62f403a3f7784fce","versionType":"git"},{"lessThan":"09301f1fdf2aef8cce34d0c4650c30e7edb1ced9","status":"affected","version":"b44133ff03be30b55f23036e62f403a3f7784fce","versionType":"git"},{"lessThan":"f1b4df9c260c51726da2e86e19322825fddeefd0","status":"affected","version":"b44133ff03be30b55f23036e62…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:529ccaafb0d36cc26e72fdfc44dc24e4b6dc89f3550daf7d550bb5c680d168bc · sha256:ae5a0bba02dd6dda… · /containers/cna/affected/0

Affected products and versions

2 source assertions

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:529ccaafb0d36cc26e72fdfc44dc24e4b6dc89f3550daf7d550bb5c680d168bc · sha256:ae5a0bba02dd6dda… · /containers/cna/affected/1

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:529ccaafb0d36cc26e72fdfc44dc24e4b6dc89f3550daf7d550bb5c680d168bc · sha256:ae5a0bba02dd6dda… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:529ccaafb0d36cc26e72fdfc44dc24e4b6dc89f3550daf7d550bb5c680d168bc · sha256:ae5a0bba02dd6dda… · /containers/cna/metrics/0/cvssV3_1

Source references

5 source assertions

{"url":"https://git.kernel.org/stable/c/09301f1fdf2aef8cce34d0c4650c30e7edb1ced9"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:529ccaafb0d36cc26e72fdfc44dc24e4b6dc89f3550daf7d550bb5c680d168bc · sha256:ae5a0bba02dd6dda… · /containers/cna/references/1

{"url":"https://git.kernel.org/stable/c/0f0b6232af56441d0a2dcb173cc4f8d8aab39014"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:529ccaafb0d36cc26e72fdfc44dc24e4b6dc89f3550daf7d550bb5c680d168bc · sha256:ae5a0bba02dd6dda… · /containers/cna/references/0

{"url":"https://git.kernel.org/stable/c/57077eeb586c42f124bc09e018449362223067b3"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:529ccaafb0d36cc26e72fdfc44dc24e4b6dc89f3550daf7d550bb5c680d168bc · sha256:ae5a0bba02dd6dda… · /containers/cna/references/3

{"url":"https://git.kernel.org/stable/c/6f5fb689fdf80bdd143f22a502f9eb1f3c85e286"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:529ccaafb0d36cc26e72fdfc44dc24e4b6dc89f3550daf7d550bb5c680d168bc · sha256:ae5a0bba02dd6dda… · /containers/cna/references/4

{"url":"https://git.kernel.org/stable/c/f1b4df9c260c51726da2e86e19322825fddeefd0"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:529ccaafb0d36cc26e72fdfc44dc24e4b6dc89f3550daf7d550bb5c680d168bc · sha256:ae5a0bba02dd6dda… · /containers/cna/references/2

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.

← Back to CVE Explorer