CVE Explorer

CVE-2026-34464

Sandboxie-Plus is an open source sandbox-based isolation software for Windows. In versions 1.17.2 and earlier, NamedPipeServer::OpenHandler copies the server field from NAMED_PIPE_OPEN_REQ into a fixed WCHAR pipename[160] stack buffer using wcscat without verifying null termination. The handler only enforces a minimum packet size, and since the service pipe accepts variable-length messages, a sandboxed caller can fill the server[48] field with non-zero data and append additional controlled wide

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:9bd12c718cec210ce3c4c9d7a64ab98de62292ec045b788f35584670a885fbb6

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-170","description":"CWE-170: Improper Null Termination","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:20e3c2fe9135a3623ebe1310b494ac89d9d8c6df69c9e1d00d47f815db332c55 · sha256:9a148c908017ed3f… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-121","description":"CWE-121: Stack-based Buffer Overflow","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:20e3c2fe9135a3623ebe1310b494ac89d9d8c6df69c9e1d00d47f815db332c55 · sha256:9a148c908017ed3f… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion

{"product":"Sandboxie","vendor":"sandboxie-plus","versions":[{"status":"affected","version":"< 1.17.3"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:20e3c2fe9135a3623ebe1310b494ac89d9d8c6df69c9e1d00d47f815db332c55 · sha256:9a148c908017ed3f… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"HIGH","attackRequirements":"PRESENT","attackVector":"LOCAL","baseScore":8.8,"baseSeverity":"HIGH","privilegesRequired":"LOW","subAvailabilityImpact":"HIGH","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:20e3c2fe9135a3623ebe1310b494ac89d9d8c6df69c9e1d00d47f815db332c55 · sha256:9a148c908017ed3f… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions

{"cweId":"CWE-170","description":"CWE-170: Improper Null Termination","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:20e3c2fe9135a3623ebe1310b494ac89d9d8c6df69c9e1d00d47f815db332c55 · sha256:9a148c908017ed3f… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-121","description":"CWE-121: Stack-based Buffer Overflow","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:20e3c2fe9135a3623ebe1310b494ac89d9d8c6df69c9e1d00d47f815db332c55 · sha256:9a148c908017ed3f… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion

{"name":"https://github.com/sandboxie-plus/Sandboxie/security/advisories/GHSA-cf8x-f33g-vwfg","tags":["x_refsource_CONFIRM"],"url":"https://github.com/sandboxie-plus/Sandboxie/security/advisories/GHSA-cf8x-f33g-vwfg"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:20e3c2fe9135a3623ebe1310b494ac89d9d8c6df69c9e1d00d47f815db332c55 · sha256:9a148c908017ed3f… · /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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