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CVE-2026-43261arm64: Add support for TSV110 Spectre-BHB mitigation
- 5.5MediumCVSS base score
- 0.13%Exploitation in 30 daysEPSS · top 97% 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: 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.
Timeline
ID reserved
By Linux
- 5 days later
· 5 days later
Published
- 6 months later
· 6 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
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.13% · top 97% of all CVEs (15 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected e192c8baa69ac8a5585d61ac535aa1e5eb795e80 – < 598c11dd4f4a9de31d854fcb9702f54c1c70f0d0
- affected 4bbfd0c280254b273c564767021bb9b0f945148e – < a8d0ad5d990b050a6db74218a34b5529085e16b8
- affected 558c303c9734af5a813739cd284879227f7297d2 – < cccf96c49f61e47d9332d6a4d1c7fe9a2df44440
- affected 558c303c9734af5a813739cd284879227f7297d2 – < fd7e360845d331f542854d552469544182e61134
- affected 558c303c9734af5a813739cd284879227f7297d2 – < 5dbe1f14359735fa50ba0dd4a496125b5bc7f422
- affected 558c303c9734af5a813739cd284879227f7297d2 – < fd51d47fcacec3ca027eb65d8c44853d3b6cea95
- affected 558c303c9734af5a813739cd284879227f7297d2 – < ad0c356cae164ed5dbd1f4cfd438e46faa5292cb
- affected 558c303c9734af5a813739cd284879227f7297d2 – < e3baa5d4b361276efeb87b20d8beced451a7dbd5
- affected 4dd8aae585a51a1d276911fe19096ad90144e9fe
- affected 3e3904125fccd042fda24294624e8f66699fd06d
- affected c20d551744797000c4af993f7d59ef8c69732949
- affected 9013fd4bc958b33c3b4d5a2eaf4ded9857600395
- affected 0b2bf1b37b5ebd90e69e30d8c2d6e1cd0c1f37b4
- affected 5.10.105 – < 5.10.252
- affected 5.15.28 – < 5.15.202
- affected 4.9.310 – < 4.10
- affected 4.14.275 – < 4.15
- affected 4.19.236 – < 4.20
- affected 5.4.186 – < 5.5
- affected 5.16.14 – < 5.17
- affected 5.17
- unaffected < 5.17
- unaffected 5.10.252 – ≤ 5.10.*
- unaffected 5.15.202 – ≤ 5.15.*
- unaffected 6.1.165 – ≤ 6.1.*
- unaffected 6.6.128 – ≤ 6.6.*
- unaffected 6.12.75 – ≤ 6.12.*
- unaffected 6.18.16 – ≤ 6.18.*
- unaffected 6.19.6 – ≤ 6.19.*
- unaffected 7.0 – ≤ *
References
References8
- https://git.kernel.org/stable/c/598c11dd4f4a9de31d854fcb9702f54c1c70f0d0 (opens in a new tab)
- https://git.kernel.org/stable/c/a8d0ad5d990b050a6db74218a34b5529085e16b8 (opens in a new tab)
- https://git.kernel.org/stable/c/cccf96c49f61e47d9332d6a4d1c7fe9a2df44440 (opens in a new tab)
- https://git.kernel.org/stable/c/fd7e360845d331f542854d552469544182e61134 (opens in a new tab)
- https://git.kernel.org/stable/c/5dbe1f14359735fa50ba0dd4a496125b5bc7f422 (opens in a new tab)
- https://git.kernel.org/stable/c/fd51d47fcacec3ca027eb65d8c44853d3b6cea95 (opens in a new tab)
- https://git.kernel.org/stable/c/ad0c356cae164ed5dbd1f4cfd438e46faa5292cb (opens in a new tab)
- https://git.kernel.org/stable/c/e3baa5d4b361276efeb87b20d8beced451a7dbd5 (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-2026-27822 (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-2026-43261)Record last updated .