Medium 5.5Published May 6, 2026

CVE-2026-43261arm64: Add support for TSV110 Spectre-BHB mitigation

Updated under an hour ago (Oct 26, 2026, 3:10 PM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: arm64: Add support for TSV110 Spectre-BHB mitigation The TSV110 processor is vulnerable to the Spectre-BHB (Branch History Buffer) attack, which can be exploited to leak information through branch prediction side channels. This commit adds the MIDR of TSV110 to the list for software mitigation.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: May 23, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from e192c8baa69ac8a5585d61ac535aa1e5eb795e80 before 598c11dd4f4a9de31d854fcb9702f54c1c70f0d0; from 4bbfd0c280254b273c564767021bb9b0f945148e before a8d0ad5d990b050a6db74218a34b5529085e16b8; from 558c303c9734af5a813739cd284879227f7297d2 before cccf96c49f61e47d9332d6a4d1c7fe9a2df44440; from 558c303c9734af5a813739cd284879227f7297d2 before fd7e360845d331f542854d552469544182e61134; 558c303c9734af5a813739cd284879227f7297d2 builds before 5dbe1f14359735fa50ba0dd4a496125b5bc7f422; from 558c303c9734af5a813739cd284879227f7297d2 before fd51d47fcacec3ca027eb65d8c44853d3b6cea95; from 558c303c9734af5a813739cd284879227f7297d2 before ad0c356cae164ed5dbd1f4cfd438e46faa5292cb; from 558c303c9734af5a813739cd284879227f7297d2 before e3baa5d4b361276efeb87b20d8beced451a7dbd5; and 12 more ranges	CNA record
linux linux_kernel linux:linux_kernel	from 5.10.105 before 5.10.252; from 5.11 before 5.15.202; from 5.16 before 6.1.165; from 6.2 before 6.6.128; from 6.7 before 6.12.75; from 6.13 before 6.18.16; from 6.19 before 6.19.6	NVD

References

References

https://git.kernel.org/stable/c/598c11dd4f4a9de31d854fcb9702f54c1c70f0d0	patch
https://git.kernel.org/stable/c/a8d0ad5d990b050a6db74218a34b5529085e16b8	patch
https://git.kernel.org/stable/c/cccf96c49f61e47d9332d6a4d1c7fe9a2df44440	patch
https://git.kernel.org/stable/c/fd7e360845d331f542854d552469544182e61134	patch
https://git.kernel.org/stable/c/5dbe1f14359735fa50ba0dd4a496125b5bc7f422	patch
https://git.kernel.org/stable/c/fd51d47fcacec3ca027eb65d8c44853d3b6cea95	patch
https://git.kernel.org/stable/c/ad0c356cae164ed5dbd1f4cfd438e46faa5292cb	patch
https://git.kernel.org/stable/c/e3baa5d4b361276efeb87b20d8beced451a7dbd5	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.