CVE-2026-64549Bluetooth: bpa10x: avoid OOB read of revision string in bpa10x_setup()
- —Not scoredno CVSS score yet
- 0.19%Exploitation in 30 daysEPSS · top 92% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: bpa10x: avoid OOB read of revision string in bpa10x_setup() bpa10x_setup() sends the vendor command 0xfc0e and passes the response to bt_dev_info() and hci_set_fw_info() as a "%s" string starting at skb->data + 1, without checking the length: bt_dev_info(hdev, "%s", (char *)(skb->data + 1)); hci_set_fw_info(hdev, "%s", skb->data + 1); A device that returns a one-byte response (status only) leaves skb->data + 1 past the end of the data, and the %s walk reads adjacent slab memory until it meets a NUL. The same happens when the payload is not NUL-terminated within skb->len. The out-of-bounds bytes end up in the kernel log and the firmware-info debugfs file. Print the revision string with a bounded "%.*s" limited to skb->len - 1 instead. This keeps the string readable for well-behaved devices while never reading past the received data, and does not fail setup, so a device returning a short or unterminated response keeps working.
Timeline
ID reserved
By Linux
- 8 days later
· 8 days later
Published
- 3 months later
· 3 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Awaiting Analysis.
- EPSS (exploitation in 30 days)
- 0.19% · top 92% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected ddd68ec8f4847b460c9f580076eafe13b031a6fd – < 1813add71e386f77b3040e6c8dc9b7b3ff965a6c
- affected ddd68ec8f4847b460c9f580076eafe13b031a6fd – < bd56c23f1f8681a2857ee924a8bd3abf87c8913b
- affected ddd68ec8f4847b460c9f580076eafe13b031a6fd – < 7a64f39ebe1bacd9004a62eceadac0b122ec3cc2
- affected ddd68ec8f4847b460c9f580076eafe13b031a6fd – < f80b4afe893dffa9fabdbf80fb4d6782b24a6793
- affected ddd68ec8f4847b460c9f580076eafe13b031a6fd – < 4b4008dda1d0c6e598d7865631ad4eda63a560f0
- affected ddd68ec8f4847b460c9f580076eafe13b031a6fd – < bfc9e7be289df11e8e38c98cd78019d67fdd0bd5
- affected ddd68ec8f4847b460c9f580076eafe13b031a6fd – < a8e169d308775039200bb9c905c7ce420db6e8c5
- affected ddd68ec8f4847b460c9f580076eafe13b031a6fd – < dd068ef044128db655f48323a4acfd5907e04903
- affected 4.4
- unaffected < 4.4
- unaffected 5.10.261 – ≤ 5.10.*
- unaffected 5.15.212 – ≤ 5.15.*
- unaffected 6.1.178 – ≤ 6.1.*
- unaffected 6.6.145 – ≤ 6.6.*
- unaffected 6.12.97 – ≤ 6.12.*
- unaffected 6.18.40 – ≤ 6.18.*
- unaffected 7.1.5 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References8
- https://git.kernel.org/stable/c/1813add71e386f77b3040e6c8dc9b7b3ff965a6c (opens in a new tab)
- https://git.kernel.org/stable/c/bd56c23f1f8681a2857ee924a8bd3abf87c8913b (opens in a new tab)
- https://git.kernel.org/stable/c/7a64f39ebe1bacd9004a62eceadac0b122ec3cc2 (opens in a new tab)
- https://git.kernel.org/stable/c/f80b4afe893dffa9fabdbf80fb4d6782b24a6793 (opens in a new tab)
- https://git.kernel.org/stable/c/4b4008dda1d0c6e598d7865631ad4eda63a560f0 (opens in a new tab)
- https://git.kernel.org/stable/c/bfc9e7be289df11e8e38c98cd78019d67fdd0bd5 (opens in a new tab)
- https://git.kernel.org/stable/c/a8e169d308775039200bb9c905c7ce420db6e8c5 (opens in a new tab)
- https://git.kernel.org/stable/c/dd068ef044128db655f48323a4acfd5907e04903 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-49600 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-64549)Record last updated .