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CVE-2025-34036 (GCVE-0-2025-34036)

Vulnerability from cvelistv5 – Published: 2025-06-24 01:00 – Updated: 2026-04-07 14:09 X_Known Exploited Vulnerability
VLAI Shadowserver Previdian
Title
Shenzhen TVT CCTV-DVR Command Injection
Summary
An OS command injection vulnerability exists in white-labeled DVRs manufactured by TVT, affecting a custom HTTP service called "Cross Web Server" that listens on TCP ports 81 and 82. The web interface fails to sanitize input in the URI path passed to the language extraction functionality. When the server processes a request to /language/[lang]/index.html, it uses the [lang] input unsafely in a tar extraction command without proper escaping. This allows an unauthenticated remote attacker to inject shell commands and achieve arbitrary command execution as root. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-06 UTC.
Severity
10 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-06-24 13:29 UTC
CWE
  • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
URL Tags
https://web.archive.org/web/20160322204109/http:/… third-party-advisoryexploittechnical-description
https://www.exploit-db.com/exploits/39596 third-party-advisoryexploit
https://vulncheck.com/advisories/shenzhen-tvt-cct… third-party-advisory
Impacted products
Vendor Product Version CPE status
Shenzhen TVT CCTV-DVR Affected: 0 (semver)
guessed Create a notification for this product.
Date Public
2016-03-23 00:00
Credits
Ophir Harpaz (k1p0d)
Shadowserver
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: fc7a6844-3b0d-4dc8-b4ce-17f382001011

Vulnerability ID: CVE-2025-34036

Status: Confirmed

Status Updated: 2026-07-20 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2026-01-07
Asserted: 2026-01-07
Last Seen: 2026-07-20
Scope
Asset Exposure: ['internet-facing']
Notes: Affected: Shenzhen TVT / CCTV-DVR (rebranded by multiple vendors) | Class: video-system | IoT: yes | In CISA KEV: no | Honeypot connections on 2026-07-20: 121
Evidence

Type: Honeypot

Signal: In The Wild Attempts

Confidence: 70%

Source: shadowserver

Details
1D 119
Iot yes
Feed Shadowserver Foundation honeypot/exploited-vulnerabilities
Type http-scan
Class video-system
7D Avg 133
Vendor Shenzhen TVT
30D Avg 135
90D Avg 133
Product CCTV-DVR (rebranded by multiple vendors)
Cisa Kev no
Connections 121
Observation Date 2026-07-20
Vulnerability Class None
Vulnerability Score None
Vulnerability Severity None
References
Created: 2026-06-30 09:22 UTC | Updated: 2026-07-22 01:00 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: aeca28f2-2cb5-4c89-947c-3e51b72c6458

Vulnerability ID: CVE-2025-34036

Status: Confirmed

Status Updated: 2026-01-10 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2026-01-10
Asserted: 2026-01-10
Scope
Notes: KEVIntel entry: Shenzhen TVT CCTV-DVR Command Injection | Affected: Shenzhen TVT / CCTV-DVR | CVSS: 10.0 (CRITICAL) | Used in malware: unknown | Not yet in CISA KEV: True
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title Shenzhen TVT CCTV-DVR Command Injection
Vendor Shenzhen TVT
Product CCTV-DVR
Added Date 2026-01-10T00:00:00.000Z
Cvss Score 10.0
Epss Score None
Cvss Severity CRITICAL
Epss Percentile None
Used In Malware unknown
Ahead Of Cisa Kev None
Not Yet In Cisa Kev True
References
Created: 2026-06-23 14:03 UTC | Updated: 2026-07-10 06:14 UTC
Show details on NVD website
To clipboard 

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    "redhat_vex": {
      "current_release_date": "2026-04-07T17:04:31+00:00",
      "cve": "CVE-2025-34036",
      "id": "CVE-2025-34036",
      "initial_release_date": "2025-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Shenzhen TVT CCTV-DVR Command Injection",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-34036.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-34036\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-06-24T13:29:49.719646Z\"}}}], \"references\": [{\"url\": \"https://web.archive.org/web/20160322204109/http://www.kerneronsec.com/2016/02/remote-code-execution-in-cctv-dvrs-of.html\", \"tags\": [\"exploit\"]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-06-24T13:29:37.931Z\"}}], \"cna\": {\"tags\": [\"x_known-exploited-vulnerability\"], \"title\": \"Shenzhen TVT CCTV-DVR Command Injection\", \"source\": {\"discovery\": \"UNKNOWN\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Ophir Harpaz (k1p0d)\"}], \"impacts\": [{\"capecId\": \"CAPEC-88\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"CAPEC-88 OS Command Injection\"}]}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV4_0\": {\"Safety\": \"NOT_DEFINED\", \"version\": \"4.0\", \"Recovery\": \"NOT_DEFINED\", \"baseScore\": 10, \"Automatable\": \"NOT_DEFINED\", \"attackVector\": \"NETWORK\", \"baseSeverity\": \"CRITICAL\", \"valueDensity\": \"NOT_DEFINED\", \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H\", \"exploitMaturity\": \"NOT_DEFINED\", \"providerUrgency\": \"NOT_DEFINED\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"NONE\", \"subIntegrityImpact\": \"HIGH\", \"vulnIntegrityImpact\": \"HIGH\", \"subAvailabilityImpact\": \"HIGH\", \"vulnAvailabilityImpact\": \"HIGH\", \"subConfidentialityImpact\": \"HIGH\", \"vulnConfidentialityImpact\": \"HIGH\", \"vulnerabilityResponseEffort\": \"NOT_DEFINED\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"Shenzhen TVT\", \"modules\": [\"Web Management Interface (language localization handler in HTTP server binary td3520a)\"], \"product\": \"CCTV-DVR\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"versionType\": \"semver\"}], \"defaultStatus\": \"unaffected\"}], \"datePublic\": \"2016-03-23T00:00:00.000Z\", \"references\": [{\"url\": \"https://web.archive.org/web/20160322204109/http://www.kerneronsec.com/2016/02/remote-code-execution-in-cctv-dvrs-of.html\", \"tags\": [\"third-party-advisory\", \"exploit\", \"technical-description\"]}, {\"url\": \"https://www.exploit-db.com/exploits/39596\", \"tags\": [\"third-party-advisory\", \"exploit\"]}, {\"url\": \"https://vulncheck.com/advisories/shenzhen-tvt-cctv-dvr-command-injection\", \"tags\": [\"third-party-advisory\"]}], \"x_generator\": {\"engine\": \"Vulnogram 0.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"An OS command injection vulnerability exists in white-labeled DVRs manufactured by TVT, affecting a custom HTTP service called \\\"Cross Web Server\\\" that listens on TCP ports 81 and 82. The web interface fails to sanitize input in the URI path passed to the language extraction functionality. When the server processes a request to /language/[lang]/index.html, it uses the [lang] input unsafely in a tar extraction command without proper escaping. This allows an unauthenticated remote attacker to inject shell commands and achieve arbitrary command execution as root.\\u00a0Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-06 UTC.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"An OS command injection vulnerability exists in white-labeled DVRs manufactured by TVT, affecting a custom HTTP service called \\\"Cross Web Server\\\" that listens on TCP ports 81 and 82. The web interface fails to sanitize input in the URI path passed to the language extraction functionality. When the server processes a request to /language/[lang]/index.html, it uses the [lang] input unsafely in a tar extraction command without proper escaping. This allows an unauthenticated remote attacker to inject shell commands and achieve arbitrary command execution as root.\u0026nbsp;Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-06 UTC.\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-78\", \"description\": \"CWE-78 Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"83251b91-4cc7-4094-a5c7-464a1b83ea10\", \"shortName\": \"VulnCheck\", \"dateUpdated\": \"2026-04-07T14:09:11.039Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-34036\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-04-07T14:09:11.039Z\", \"dateReserved\": \"2025-04-15T19:15:22.546Z\", \"assignerOrgId\": \"83251b91-4cc7-4094-a5c7-464a1b83ea10\", \"datePublished\": \"2025-06-24T01:00:52.579Z\", \"assignerShortName\": \"VulnCheck\"}",
      "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.


Detection rules are retrieved from Rulezet.


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.