CVE-2026-64549: linux

CVSS: UnknownReceived
AliasesUBUNTU-CVE-2026-64549DEBIAN-CVE-2026-64549
Published 27-07-2026Last modified 17-08-2026
Open JSON

Vulnerability summary

CVE-2026-64549 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 7.1% of scored vulnerabilities.

Overall risk
0/100
0100
Minimal · default modelHow is this calculated?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.18%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 28 · Related 26
MGASA-2026-0336MGASA-2026-0337OPENSUSE-SU-2026:11476-1OPENSUSE-SU-2026:21910-1SUSE-SU-2026:23477-1SUSE-SU-2026:23481-1

Timeline

  1. 27-07-2026
    PublishedVulnerability first disclosed.
  2. 17-08-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.18%

Chance of exploitation in the next 30 days

Percentile

7%

Versus all other CVEs

30-day change

0.00 pp

From 0.18% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.18%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu169 products
  • linuxAll versions (No fix recorded) | < 5.15.0-198.208 | < 6.8.0-147.147 | < 7.0.0-38.38
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1117.124 | < 6.8.0-1067.70 | < 7.0.0-1014.14
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
  • linux< 6.1.180-1 | < 6.12.100-1 | < 7.1.5-1
  • linux-6.12< 6.12.100-1~deb12u1
Linux1 product
  • linux≥ ddd68ec8f4847b460c9f580076eafe13b031a6fd, < 1813add71e386f77b3040e6c8dc9b7b3ff965a6c | ≥ ddd68ec8f4847b460c9f580076eafe13b031a6fd, < bd56c23f1f8681a2857ee924a8bd3abf87c8913b | ≥ ddd68ec8f4847b460c9f580076eafe13b031a6fd, < 7a64f39ebe1bacd9004a62eceadac0b122ec3cc2 | ≥ ddd68ec8f4847b460c9f580076eafe13b031a6fd, < f80b4afe893dffa9fabdbf80fb4d6782b24a6793 | ≥ ddd68ec8f4847b460c9f580076eafe13b031a6fd, < 4b4008dda1d0c6e598d7865631ad4eda63a560f0 | ≥ ddd68ec8f4847b460c9f580076eafe13b031a6fd, < bfc9e7be289df11e8e38c98cd78019d67fdd0bd5 | ≥ ddd68ec8f4847b460c9f580076eafe13b031a6fd, < a8e169d308775039200bb9c905c7ce420db6e8c5 | ≥ ddd68ec8f4847b460c9f580076eafe13b031a6fd, < dd068ef044128db655f48323a4acfd5907e04903 | 4.4

3 vendors · 172 products

References

27 links
Show all 27 references