Answer in brief
CVE-2026-43261 records a Unknown severity vulnerability in arm64: Add support for TSV110 Spectre-BHB mitigation. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=e192c8baa69ac8a5585d61ac535aa1e5eb795e80 <598c11dd4f4a9de31d854fcb9702f54c1c70f0d0 || >=4bbfd0c280254b273c564767021bb9b0f945148e <a8d0ad5d990b050a6db74218a34b5529085e16b8 || >=558c303c9734af5a813739cd284879227f7297d2 <cccf96c49f61e47d9332d6a4d1c7fe9a2df44440 || >=558c303c9734af5a813739cd284879227f7297d2 <fd7e360845d331f542854d552469544182e61134 || >=558c303c9734af5a813739cd284879227f7297d2 <5dbe1f14359735fa50ba0dd4a496125b5bc7f422 || >=558c303c9734af5a813739cd284879227f7297d2 <fd51d47fcacec3ca027eb65d8c44853d3b6cea95 || >=558c303c9734af5a813739cd284879227f7297d2 <ad0c356cae164ed5dbd1f4cfd438e46faa5292cb || >=558c303c9734af5a813739cd284879227f7297d2 <e3baa5d4b361276efeb87b20d8beced451a7dbd5 || 4dd8aae585a51a1d276911fe19096ad90144e9fe || 3e3904125fccd042fda24294624e8f66699fd06d || c20d551744797000c4af993f7d59ef8c69732949 || 9013fd4bc958b33c3b4d5a2eaf4ded9857600395 || 0b2bf1b37b5ebd90e69e30d8c2d6e1cd0c1f37b4 || >=5.10.105 <5.10.252 || >=5.15.28 <5.15.202 || >=4.9.310 <4.10 || >=4.14.275 <4.15 || >=4.19.236 <4.20 || >=5.4.186 <5.5 || >=5.16.14 <5.17 | 598c11dd4f4a9de31d854fcb9702f54c1c70f0d0, a8d0ad5d990b050a6db74218a34b5529085e16b8, cccf96c49f61e47d9332d6a4d1c7fe9a2df44440, fd7e360845d331f542854d552469544182e61134, 5dbe1f14359735fa50ba0dd4a496125b5bc7f422, fd51d47fcacec3ca027eb65d8c44853d3b6cea95, ad0c356cae164ed5dbd1f4cfd438e46faa5292cb, e3baa5d4b361276efeb87b20d8beced451a7dbd5, 5.10.252, 5.15.202, 4.10, 4.15, 4.20, 5.5, 5.17 |
| Linux/Linuxgeneric | 5.17 | Not reported |
Published upstream
May 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 6, 2026
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.
Quoted source text, attributed separately from HOL analysis.