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CVE-2025-48721 (GCVE-0-2025-48721)

Vulnerability from cvelistv5 – Published: 2026-01-02 15:17 – Updated: 2026-01-02 19:13
VLAI
Title
QTS, QuTS hero
Summary
A buffer overflow vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to modify memory or crash processes. We have already fixed the vulnerability in the following version: QTS 5.2.8.3332 build 20251128 and later
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-02 19:12 UTC
References
Impacted products
Vendor Product Version CPE status
QNAP Systems Inc. QTS Affected: 5.2.x , < 5.2.8.3332 build 20251128 (custom)
guessed Create a notification for this product.
Show details on NVD website

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      "id": "CVE-2025-48721",
      "initial_release_date": "2025-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "QTS, QuTS hero",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-48721.json",
      "version": "3"
    },
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      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-48721\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-01-02T19:12:59.630805Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-01-02T19:13:05.082Z\"}}], \"cna\": {\"title\": \"QTS, QuTS hero\", \"source\": {\"advisory\": \"QSA-25-51\", \"discovery\": \"EXTERNAL\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Yuze Wu(h1J4cker)\"}], \"impacts\": [{\"capecId\": \"CAPEC-100\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"CAPEC-100\"}]}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV4_0\": {\"Safety\": \"NOT_DEFINED\", \"version\": \"4.0\", \"Recovery\": \"NOT_DEFINED\", \"baseScore\": 1.2, \"Automatable\": \"NOT_DEFINED\", \"attackVector\": \"NETWORK\", \"baseSeverity\": \"LOW\", \"valueDensity\": \"NOT_DEFINED\", \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U\", \"exploitMaturity\": \"UNREPORTED\", \"providerUrgency\": \"NOT_DEFINED\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"HIGH\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"NONE\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"LOW\", \"subConfidentialityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"NONE\", \"vulnerabilityResponseEffort\": \"NOT_DEFINED\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"QNAP Systems Inc.\", \"product\": \"QTS\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.2.x\", \"lessThan\": \"5.2.8.3332 build 20251128\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unaffected\"}], \"solutions\": [{\"lang\": \"en\", \"value\": \"We have already fixed the vulnerability in the following version:\\nQTS 5.2.8.3332 build 20251128 and later\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"We have already fixed the vulnerability in the following version:\u003cbr\u003eQTS 5.2.8.3332 build 20251128 and later\u003cbr\u003e\", \"base64\": false}]}], \"references\": [{\"url\": \"https://www.qnap.com/en/security-advisory/qsa-25-51\"}], \"x_generator\": {\"engine\": \"Vulnogram 0.1.0-dev\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"A buffer overflow vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to modify memory or crash processes.\\n\\nWe have already fixed the vulnerability in the following version:\\nQTS 5.2.8.3332 build 20251128 and later\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"A buffer overflow vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to modify memory or crash processes.\u003cbr\u003e\u003cbr\u003eWe have already fixed the vulnerability in the following version:\u003cbr\u003eQTS 5.2.8.3332 build 20251128 and later\u003cbr\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-120\", \"description\": \"CWE-120\"}, {\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-121\", \"description\": \"CWE-121\"}]}], \"providerMetadata\": {\"orgId\": \"2fd009eb-170a-4625-932b-17a53af1051f\", \"shortName\": \"qnap\", \"dateUpdated\": \"2026-01-02T15:17:38.864Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-48721\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-02T19:13:09.727Z\", \"dateReserved\": \"2025-05-23T07:43:55.795Z\", \"assignerOrgId\": \"2fd009eb-170a-4625-932b-17a53af1051f\", \"datePublished\": \"2026-01-02T15:17:38.864Z\", \"assignerShortName\": \"qnap\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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Detection rules are retrieved from Rulezet.

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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


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