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CVE-2026-31628

In the Linux kernel, the following vulnerability has been resolved: x86/CPU: Fix FPDSS on Zen1 Zen1's hardware divider can leave, under certain circumstances, partial results from previous operations. Those results can be leaked by another, attacker thread. Fix that with a chicken bit.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:794eefb78d0115c01e6290df0779fea4f7651624f5bf72384058f52d2ad1d8a5
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 12 assertions

{"defaultStatus":"unknown","product":"SIPLUS S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:22d5efa6d98abab19bb9bd838243a1c4076ca6ed088299207a9d19e5dc7b9ef7 · sha256:15d95894313805ab… · /containers/adp/0/affected/8

{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:22d5efa6d98abab19bb9bd838243a1c4076ca6ed088299207a9d19e5dc7b9ef7 · sha256:15d95894313805ab… · /containers/adp/0/affected/0

{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.5","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:22d5efa6d98abab19bb9bd838243a1c4076ca6ed088299207a9d19e5dc7b9ef7 · sha256:15d95894313805ab… · /containers/adp/0/affected/7

{"defaultStatus":"unknown","product":"SIPLUS S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.5","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:22d5efa6d98abab19bb9bd838243a1c4076ca6ed088299207a9d19e5dc7b9ef7 · sha256:15d95894313805ab… · /containers/adp/0/affected/9

{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.5","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:22d5efa6d98abab19bb9bd838243a1c4076ca6ed088299207a9d19e5dc7b9ef7 · sha256:15d95894313805ab… · /containers/adp/0/affected/3

{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.5","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:22d5efa6d98abab19bb9bd838243a1c4076ca6ed088299207a9d19e5dc7b9ef7 · sha256:15d95894313805ab… · /containers/adp/0/affected/5

{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.5","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:22d5efa6d98abab19bb9bd838243a1c4076ca6ed088299207a9d19e5dc7b9ef7 · sha256:15d95894313805ab… · /containers/adp/0/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["arch/x86/include/asm/msr-index.h","arch/x86/kernel/cpu/amd.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"ed7a3a246309ccc807238f1b4f159ee6d37ff9c4","status":"affected","version":"f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9","versionType":"git"},{"lessThan":"0548529af20e68c6552817834b766646dd3bd7a7","status":"affected","version":"f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9","versionType":"git"},{"lessThan":"1272cfedf4cd1019ddf583917a99b62f2d3645bb","status":"affect…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:22d5efa6d98abab19bb9bd838243a1c4076ca6ed088299207a9d19e5dc7b9ef7 · sha256:15d95894313805ab… · /containers/cna/affected/0

{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:22d5efa6d98abab19bb9bd838243a1c4076ca6ed088299207a9d19e5dc7b9ef7 · sha256:15d95894313805ab… · /containers/adp/0/affected/4

{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:22d5efa6d98abab19bb9bd838243a1c4076ca6ed088299207a9d19e5dc7b9ef7 · sha256:15d95894313805ab… · /containers/adp/0/affected/6

{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:22d5efa6d98abab19bb9bd838243a1c4076ca6ed088299207a9d19e5dc7b9ef7 · sha256:15d95894313805ab… · /containers/adp/0/affected/2

{"defaultStatus":"affected","product":"Linux","programFiles":["arch/x86/include/asm/msr-index.h","arch/x86/kernel/cpu/amd.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.14"},{"lessThan":"4.14","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.253","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:22d5efa6d98abab19bb9bd838243a1c4076ca6ed088299207a9d19e5dc7b9ef7 · sha256:15d95894313805ab… · /containers/cna/affected/1

Affected products and versions

12 source assertions
{"defaultStatus":"unknown","product":"SIPLUS S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:22d5efa6d98abab19bb9bd838243a1c4076ca6ed088299207a9d19e5dc7b9ef7 · sha256:15d95894313805ab… · /containers/adp/0/affected/8
{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:22d5efa6d98abab19bb9bd838243a1c4076ca6ed088299207a9d19e5dc7b9ef7 · sha256:15d95894313805ab… · /containers/adp/0/affected/0
{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.5","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:22d5efa6d98abab19bb9bd838243a1c4076ca6ed088299207a9d19e5dc7b9ef7 · sha256:15d95894313805ab… · /containers/adp/0/affected/7
{"defaultStatus":"unknown","product":"SIPLUS S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.5","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:22d5efa6d98abab19bb9bd838243a1c4076ca6ed088299207a9d19e5dc7b9ef7 · sha256:15d95894313805ab… · /containers/adp/0/affected/9
{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.5","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:22d5efa6d98abab19bb9bd838243a1c4076ca6ed088299207a9d19e5dc7b9ef7 · sha256:15d95894313805ab… · /containers/adp/0/affected/3
{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.5","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:22d5efa6d98abab19bb9bd838243a1c4076ca6ed088299207a9d19e5dc7b9ef7 · sha256:15d95894313805ab… · /containers/adp/0/affected/5
{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.5","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:22d5efa6d98abab19bb9bd838243a1c4076ca6ed088299207a9d19e5dc7b9ef7 · sha256:15d95894313805ab… · /containers/adp/0/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["arch/x86/include/asm/msr-index.h","arch/x86/kernel/cpu/amd.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"ed7a3a246309ccc807238f1b4f159ee6d37ff9c4","status":"affected","version":"f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9","versionType":"git"},{"lessThan":"0548529af20e68c6552817834b766646dd3bd7a7","status":"affected","version":"f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9","versionType":"git"},{"lessThan":"1272cfedf4cd1019ddf583917a99b62f2d3645bb","status":"affect…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:22d5efa6d98abab19bb9bd838243a1c4076ca6ed088299207a9d19e5dc7b9ef7 · sha256:15d95894313805ab… · /containers/cna/affected/0
{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:22d5efa6d98abab19bb9bd838243a1c4076ca6ed088299207a9d19e5dc7b9ef7 · sha256:15d95894313805ab… · /containers/adp/0/affected/4
{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:22d5efa6d98abab19bb9bd838243a1c4076ca6ed088299207a9d19e5dc7b9ef7 · sha256:15d95894313805ab… · /containers/adp/0/affected/6
{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:22d5efa6d98abab19bb9bd838243a1c4076ca6ed088299207a9d19e5dc7b9ef7 · sha256:15d95894313805ab… · /containers/adp/0/affected/2
{"defaultStatus":"affected","product":"Linux","programFiles":["arch/x86/include/asm/msr-index.h","arch/x86/kernel/cpu/amd.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.14"},{"lessThan":"4.14","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.253","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:22d5efa6d98abab19bb9bd838243a1c4076ca6ed088299207a9d19e5dc7b9ef7 · sha256:15d95894313805ab… · /containers/cna/affected/1

Source references

11 source assertions
{"url":"https://cert-portal.siemens.com/productcert/html/ssa-019113.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:22d5efa6d98abab19bb9bd838243a1c4076ca6ed088299207a9d19e5dc7b9ef7 · sha256:15d95894313805ab… · /containers/adp/0/references/1
{"url":"https://cert-portal.siemens.com/productcert/html/ssa-082556.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:22d5efa6d98abab19bb9bd838243a1c4076ca6ed088299207a9d19e5dc7b9ef7 · sha256:15d95894313805ab… · /containers/adp/0/references/0
{"url":"https://git.kernel.org/stable/c/0548529af20e68c6552817834b766646dd3bd7a7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:22d5efa6d98abab19bb9bd838243a1c4076ca6ed088299207a9d19e5dc7b9ef7 · sha256:15d95894313805ab… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/1272cfedf4cd1019ddf583917a99b62f2d3645bb"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:22d5efa6d98abab19bb9bd838243a1c4076ca6ed088299207a9d19e5dc7b9ef7 · sha256:15d95894313805ab… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/546785c719418c6166834a47e372a88f5f7ae893"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:22d5efa6d98abab19bb9bd838243a1c4076ca6ed088299207a9d19e5dc7b9ef7 · sha256:15d95894313805ab… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/91f02726b2203b71545713ecb7fb006e60a2d66f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:22d5efa6d98abab19bb9bd838243a1c4076ca6ed088299207a9d19e5dc7b9ef7 · sha256:15d95894313805ab… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/ad17f07e95e6e8505e2153e5b391f0d27eacce25"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:22d5efa6d98abab19bb9bd838243a1c4076ca6ed088299207a9d19e5dc7b9ef7 · sha256:15d95894313805ab… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/b731aca06387b195058a9f6449a03b62efa1bd10"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:22d5efa6d98abab19bb9bd838243a1c4076ca6ed088299207a9d19e5dc7b9ef7 · sha256:15d95894313805ab… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/e55d98e7756135f32150b9b8f75d580d0d4b2dd3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:22d5efa6d98abab19bb9bd838243a1c4076ca6ed088299207a9d19e5dc7b9ef7 · sha256:15d95894313805ab… · /containers/cna/references/8
{"url":"https://git.kernel.org/stable/c/e6af5286efe5a56128b34032572c9ce9ebeccda3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:22d5efa6d98abab19bb9bd838243a1c4076ca6ed088299207a9d19e5dc7b9ef7 · sha256:15d95894313805ab… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/ed7a3a246309ccc807238f1b4f159ee6d37ff9c4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:22d5efa6d98abab19bb9bd838243a1c4076ca6ed088299207a9d19e5dc7b9ef7 · sha256:15d95894313805ab… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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