GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

FKIE_CVE-2021-1957

Vulnerability from fkie_nvd - Published: 2021-09-09 08:15 - Updated: 2026-06-17 03:33
Summary
Improper Access Control when ACL link encryption is failed and ACL link is not disconnected during reconnection with paired device in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music
Impacted products
Vendor Product Version
qualcomm apq8017_firmware -
qualcomm apq8017 -
qualcomm qca6174a_firmware -
qualcomm qca6174a -
qualcomm qca6390_firmware -
qualcomm qca6390 -
qualcomm qca6391_firmware -
qualcomm qca6391 -
qualcomm qca6421_firmware -
qualcomm qca6421 -
qualcomm qca6426_firmware -
qualcomm qca6426 -
qualcomm qca6431_firmware -
qualcomm qca6431 -
qualcomm qca6436_firmware -
qualcomm qca6436 -
qualcomm qca6574au_firmware -
qualcomm qca6574au -
qualcomm qca6696_firmware -
qualcomm qca6696 -
qualcomm qcm6125_firmware -
qualcomm qcm6125 -
qualcomm qcs610_firmware -
qualcomm qcs610 -
qualcomm qcs6125_firmware -
qualcomm qcs6125 -
qualcomm qrb5165_firmware -
qualcomm qrb5165 -
qualcomm qualcomm215_firmware -
qualcomm qualcomm215 -
qualcomm sa6145p_firmware -
qualcomm sa6145p -
qualcomm sa6150p_firmware -
qualcomm sa6150p -
qualcomm sa6155p_firmware -
qualcomm sa6155p -
qualcomm sa8145p_firmware -
qualcomm sa8145p -
qualcomm sa8150p_firmware -
qualcomm sa8150p -
qualcomm sa8155p_firmware -
qualcomm sa8155p -
qualcomm sa8195p_firmware -
qualcomm sa8195p -
qualcomm sd855_firmware -
qualcomm sd855 -
qualcomm sd865_5g_firmware -
qualcomm sd865_5g -
qualcomm sd870_firmware -
qualcomm sd870 -
qualcomm sdx55_firmware -
qualcomm sdx55 -
qualcomm sdx55m_firmware -
qualcomm sdx55m -
qualcomm sdxr2_5g_firmware -
qualcomm sdxr2_5g -
qualcomm wcd9326_firmware -
qualcomm wcd9326 -
qualcomm wcd9335_firmware -
qualcomm wcd9335 -
qualcomm wcd9341_firmware -
qualcomm wcd9341 -
qualcomm wcd9370_firmware -
qualcomm wcd9370 -
qualcomm wcd9380_firmware -
qualcomm wcd9380 -
qualcomm wcd9385_firmware -
qualcomm wcd9385 -
qualcomm wcn3610_firmware -
qualcomm wcn3610 -
qualcomm wcn3615_firmware -
qualcomm wcn3615 -
qualcomm wcn3660b_firmware -
qualcomm wcn3660b -
qualcomm wcn3680_firmware -
qualcomm wcn3680 -
qualcomm wcn3950_firmware -
qualcomm wcn3950 -
qualcomm wcn3980_firmware -
qualcomm wcn3980 -
qualcomm wcn3990_firmware -
qualcomm wcn3990 -
qualcomm wcn3998_firmware -
qualcomm wcn3998 -
qualcomm wcn6850_firmware -
qualcomm wcn6850 -
qualcomm wcn6851_firmware -
qualcomm wcn6851 -
qualcomm wsa8810_firmware -
qualcomm wsa8810 -
qualcomm wsa8815_firmware -
qualcomm wsa8815 -

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Improper Access Control when ACL link encryption is failed and ACL link is not disconnected during reconnection with paired device in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice \u0026 Music"
    },
    {
      "lang": "es",
      "value": "Un Control de Acceso Inapropiado cuando se produce un fallo en la encriptaci\u00f3n del enlace ACL y el enlace ACL no se desconecta durante la reconexi\u00f3n con el dispositivo emparejado en Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice \u0026amp; Music"
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  ],
  "id": "CVE-2021-1957",
  "lastModified": "2026-06-17T03:33:01.253",
  "metrics": {
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        "acInsufInfo": false,
        "baseSeverity": "LOW",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "ADJACENT_NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 3.3,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:A/AC:L/Au:N/C:N/I:N/A:P",
          "version": "2.0"
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        "exploitabilityScore": 6.5,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "product-security@qualcomm.com",
        "type": "Secondary"
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      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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        "exploitabilityScore": 2.8,
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  "published": "2021-09-09T08:15:24.423",
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      "source": "product-security@qualcomm.com",
      "tags": [
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        "Vendor Advisory"
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  "vulnStatus": "Modified",
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          "lang": "en",
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}



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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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