CVE Explorer

CVE-2025-66277

A link following vulnerability has been reported to affect several QNAP operating system versions. The remote attackers can then exploit the vulnerability to traverse the file system to unintended locations. We have already fixed the vulnerability in the following versions: QTS 5.2.8.3350 build 20251216 and later QuTS hero h5.3.2.3354 build 20251225 and later QuTS hero h5.2.8.3350 build 20251216 and later

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:010c5fe344fdbdf1b6a52823d980b95b51329955abc303a53aa00e0fb4e234f3

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"QuTS hero","vendor":"QNAP Systems Inc.","versions":[{"lessThan":"h5.3.2.3354 build 20251225","status":"affected","version":"h5.3.x","versionType":"custom"},{"lessThan":"h5.2.8.3350 build 20251216","status":"affected","version":"h5.2.x","versionType":"custom"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:a9982baab2621050923437c446b3a809969d0af2ade134ca9a80841975dcc6b0 · sha256:f20941faa56d74ca… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"QTS","vendor":"QNAP Systems Inc.","versions":[{"lessThan":"5.2.8.3350 build 20251216","status":"affected","version":"5.2.x","versionType":"custom"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:a9982baab2621050923437c446b3a809969d0af2ade134ca9a80841975dcc6b0 · sha256:f20941faa56d74ca… · /containers/cna/affected/0

Affected products and versions

2 source assertions

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:a9982baab2621050923437c446b3a809969d0af2ade134ca9a80841975dcc6b0 · sha256:f20941faa56d74ca… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"QTS","vendor":"QNAP Systems Inc.","versions":[{"lessThan":"5.2.8.3350 build 20251216","status":"affected","version":"5.2.x","versionType":"custom"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:a9982baab2621050923437c446b3a809969d0af2ade134ca9a80841975dcc6b0 · sha256:f20941faa56d74ca… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":9.2,"baseSeverity":"CRITICAL","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityIm…

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:a9982baab2621050923437c446b3a809969d0af2ade134ca9a80841975dcc6b0 · sha256:f20941faa56d74ca… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion

{"cweId":"CWE-59","description":"CWE-59","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:a9982baab2621050923437c446b3a809969d0af2ade134ca9a80841975dcc6b0 · sha256:f20941faa56d74ca… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion

{"url":"https://www.qnap.com/en/security-advisory/qsa-26-05"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:a9982baab2621050923437c446b3a809969d0af2ade134ca9a80841975dcc6b0 · sha256:f20941faa56d74ca… · /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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