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CVE-2026-20500 (GCVE-0-2026-20500)

Vulnerability from cvelistv5 – Published: 2026-09-07 01:57 – Updated: 2026-09-07 10:41
VLAI
Summary
In Modem, there is a possible system crash due to improper input validation. This could lead to local denial of service with User execution privileges needed. User interaction is needed for exploitation. Patch ID: MOLY01810811; Issue ID: MSV-9232.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-07 10:41 UTC
CWE
  • CWE-295 - Improper Certificate Validation
Assigner
References
Impacted products
Vendor Product Version CPE status
MediaTek, Inc. MediaTek chipset Affected: MT2716
Affected: MT6835
Affected: MT6858
Affected: MT6878
Affected: MT6881
Affected: MT6897
Affected: MT6899
Affected: MT6982VB
Affected: MT6986
Affected: MT6988
Affected: MT6991
Affected: MT6993
Affected: MT8668
Affected: MT8676
Affected: MT8678
Affected: MT8755
Affected: MT8775
Affected: MT8792
Affected: MT8793
Affected: MT8863
Affected: MT8873
Affected: MT8883
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Advisory\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.5, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-20500\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-09-07T10:41:00.567634Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-09-07T10:40:55.573Z\"}}], \"cna\": {\"affected\": [{\"vendor\": \"MediaTek, Inc.\", \"product\": \"MediaTek chipset\", \"versions\": [{\"status\": \"affected\", \"version\": \"MT2716\"}, {\"status\": \"affected\", \"version\": \"MT6835\"}, {\"status\": \"affected\", \"version\": \"MT6858\"}, {\"status\": \"affected\", \"version\": \"MT6878\"}, {\"status\": \"affected\", \"version\": \"MT6881\"}, {\"status\": \"affected\", \"version\": \"MT6897\"}, {\"status\": \"affected\", \"version\": \"MT6899\"}, {\"status\": \"affected\", \"version\": \"MT6982VB\"}, {\"status\": \"affected\", \"version\": \"MT6986\"}, {\"status\": \"affected\", \"version\": \"MT6988\"}, {\"status\": \"affected\", \"version\": \"MT6991\"}, {\"status\": \"affected\", \"version\": \"MT6993\"}, {\"status\": \"affected\", \"version\": \"MT8668\"}, {\"status\": \"affected\", \"version\": \"MT8676\"}, {\"status\": \"affected\", \"version\": \"MT8678\"}, {\"status\": \"affected\", \"version\": \"MT8755\"}, {\"status\": \"affected\", \"version\": \"MT8775\"}, {\"status\": \"affected\", \"version\": \"MT8792\"}, {\"status\": \"affected\", \"version\": \"MT8793\"}, {\"status\": \"affected\", \"version\": \"MT8863\"}, {\"status\": \"affected\", \"version\": \"MT8873\"}, {\"status\": \"affected\", \"version\": \"MT8883\"}], \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://www.mediatek.com/product-security-bulletin/September-2026\"}], \"x_generator\": {\"engine\": \"cvelib 1.8.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In Modem, there is a possible system crash due to improper input validation. This could lead to local denial of service with User execution privileges needed. User interaction is needed for exploitation. Patch ID: MOLY01810811; Issue ID: MSV-9232.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-295\", \"description\": \"CWE-295 Improper Certificate Validation\"}]}], \"providerMetadata\": {\"orgId\": \"ee979b05-11f8-4f25-a7e0-a1fa9c190374\", \"shortName\": \"MediaTek\", \"dateUpdated\": \"2026-09-07T01:57:13.711Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-20500\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-09-07T10:41:03.588Z\", \"dateReserved\": \"2025-11-03T01:30:59.027Z\", \"assignerOrgId\": \"ee979b05-11f8-4f25-a7e0-a1fa9c190374\", \"datePublished\": \"2026-09-07T01:57:13.711Z\", \"assignerShortName\": \"MediaTek\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Tags
Taxonomy of the tags.





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.