Baitaphish
Security intelligence
SearchLatest briefing
CVE Explorer

CVE-2026-23086

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: cap TX credit to local buffer size The virtio transports derives its TX credit directly from peer_buf_alloc, which is set from the remote endpoint's SO_VM_SOCKETS_BUFFER_SIZE value. On the host side this means that the amount of data we are willing to queue for a connection is scaled by a guest-chosen buffer size, rather than the host's own vsock configuration. A malicious guest can advertise a large buffer and
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:4dcaba71d176384013376e2ad0834bf8ed20bfe835bf52f265a92971834b8ef8
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 7 assertions

{"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:v2:924ab0d144f53201ce8b56aaf8183dd5a042ccc049f476926df45510e050848d · sha256:895d3f813ef1014e… · /containers/adp/1/affected/0

{"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:v2:924ab0d144f53201ce8b56aaf8183dd5a042ccc049f476926df45510e050848d · sha256:895d3f813ef1014e… · /containers/adp/1/affected/1

{"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:v2:924ab0d144f53201ce8b56aaf8183dd5a042ccc049f476926df45510e050848d · sha256:895d3f813ef1014e… · /containers/adp/1/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:v2:924ab0d144f53201ce8b56aaf8183dd5a042ccc049f476926df45510e050848d · sha256:895d3f813ef1014e… · /containers/adp/1/affected/3

{"defaultStatus":"affected","product":"Linux","programFiles":["net/vmw_vsock/virtio_transport_common.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.8"},{"lessThan":"4.8","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.162","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.122","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.68","versionType":"semve…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:924ab0d144f53201ce8b56aaf8183dd5a042ccc049f476926df45510e050848d · sha256:895d3f813ef1014e… · /containers/cna/affected/1

{"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:v2:924ab0d144f53201ce8b56aaf8183dd5a042ccc049f476926df45510e050848d · sha256:895d3f813ef1014e… · /containers/adp/1/affected/2

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/vmw_vsock/virtio_transport_common.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"fef7110ae5617555c792a2bb4d27878d84583adf","status":"affected","version":"06a8fc78367d070720af960dcecec917d3ae5f3b","versionType":"git"},{"lessThan":"d9d5f222558b42f6277eafaaa6080966faf37676","status":"affected","version":"06a8fc78367d070720af960dcecec917d3ae5f3b","versionType":"git"},{"lessThan":"c0e42fb0e054c2b2ec4ee80f48ccd256ae0227ce","status":"affected","version":"06a8fc…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:924ab0d144f53201ce8b56aaf8183dd5a042ccc049f476926df45510e050848d · sha256:895d3f813ef1014e… · /containers/cna/affected/0

Affected products and versions

7 source assertions
{"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:v2:924ab0d144f53201ce8b56aaf8183dd5a042ccc049f476926df45510e050848d · sha256:895d3f813ef1014e… · /containers/adp/1/affected/0
{"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:v2:924ab0d144f53201ce8b56aaf8183dd5a042ccc049f476926df45510e050848d · sha256:895d3f813ef1014e… · /containers/adp/1/affected/1
{"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:v2:924ab0d144f53201ce8b56aaf8183dd5a042ccc049f476926df45510e050848d · sha256:895d3f813ef1014e… · /containers/adp/1/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:v2:924ab0d144f53201ce8b56aaf8183dd5a042ccc049f476926df45510e050848d · sha256:895d3f813ef1014e… · /containers/adp/1/affected/3
{"defaultStatus":"affected","product":"Linux","programFiles":["net/vmw_vsock/virtio_transport_common.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.8"},{"lessThan":"4.8","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.162","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.122","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.68","versionType":"semve…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:924ab0d144f53201ce8b56aaf8183dd5a042ccc049f476926df45510e050848d · sha256:895d3f813ef1014e… · /containers/cna/affected/1
{"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:v2:924ab0d144f53201ce8b56aaf8183dd5a042ccc049f476926df45510e050848d · sha256:895d3f813ef1014e… · /containers/adp/1/affected/2
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/vmw_vsock/virtio_transport_common.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"fef7110ae5617555c792a2bb4d27878d84583adf","status":"affected","version":"06a8fc78367d070720af960dcecec917d3ae5f3b","versionType":"git"},{"lessThan":"d9d5f222558b42f6277eafaaa6080966faf37676","status":"affected","version":"06a8fc78367d070720af960dcecec917d3ae5f3b","versionType":"git"},{"lessThan":"c0e42fb0e054c2b2ec4ee80f48ccd256ae0227ce","status":"affected","version":"06a8fc…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:924ab0d144f53201ce8b56aaf8183dd5a042ccc049f476926df45510e050848d · sha256:895d3f813ef1014e… · /containers/cna/affected/0

Source references

6 source assertions
{"url":"https://cert-portal.siemens.com/productcert/html/ssa-019113.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:924ab0d144f53201ce8b56aaf8183dd5a042ccc049f476926df45510e050848d · sha256:895d3f813ef1014e… · /containers/adp/1/references/0
{"url":"https://git.kernel.org/stable/c/84ef86aa7120449828d1e0ce438c499014839711"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:924ab0d144f53201ce8b56aaf8183dd5a042ccc049f476926df45510e050848d · sha256:895d3f813ef1014e… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/8ee784fdf006cbe8739cfa093f54d326cbf54037"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:924ab0d144f53201ce8b56aaf8183dd5a042ccc049f476926df45510e050848d · sha256:895d3f813ef1014e… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/c0e42fb0e054c2b2ec4ee80f48ccd256ae0227ce"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:924ab0d144f53201ce8b56aaf8183dd5a042ccc049f476926df45510e050848d · sha256:895d3f813ef1014e… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/d9d5f222558b42f6277eafaaa6080966faf37676"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:924ab0d144f53201ce8b56aaf8183dd5a042ccc049f476926df45510e050848d · sha256:895d3f813ef1014e… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/fef7110ae5617555c792a2bb4d27878d84583adf"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:924ab0d144f53201ce8b56aaf8183dd5a042ccc049f476926df45510e050848d · sha256:895d3f813ef1014e… · /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.

← Back to CVE Explorer