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TI-2026-16641 Aliases CVE-2026-20500GHSA-3wwc-gvmj-fpx5

Improper certificate validation in MediaTek chipset

Priority LOW 22CWE-295Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Spoofing
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-295.

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00124 2nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MediaTekMediaTek chipsetMT2716; MT6835; MT6858; MT6878; MT6881; MT6897; MT6899; MT6982VB; MT6986; MT6988; MT6991; MT6993; MT8668; MT8676; MT8678; MT8755; MT8775; MT8792; MT8793; MT8863; MT8873; MT8883—No fix listedCNA
  • MediaTek chipset VendorMediaTek Affected MT2716; MT6835; MT6858; MT6878; MT6881; MT6897; MT6899; MT6982VB; MT6986; MT6988; MT6991; MT6993; MT8668; MT8676; MT8678; MT8755; MT8775; MT8792; MT8793; MT8863; MT8873; MT8883 Fixed in — No fix listed CNA

CPE configurations NVD · 44

CPEVersionsRoleVendor
cpe:2.3:o:mediatek:mt2716_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt2716:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
cpe:2.3:o:mediatek:mt6835_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt6835:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
cpe:2.3:o:mediatek:mt6858_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt6858:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
cpe:2.3:o:mediatek:mt6878_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt6878:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
cpe:2.3:o:mediatek:mt6881_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt6881:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
  • cpe:2.3:o:mediatek:mt2716_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt2716:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
  • cpe:2.3:o:mediatek:mt6835_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt6835:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
  • cpe:2.3:o:mediatek:mt6858_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt6858:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
  • cpe:2.3:o:mediatek:mt6878_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt6878:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
  • cpe:2.3:o:mediatek:mt6881_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt6881:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
Show 34 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:mediatek:mt6897_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt6897:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
cpe:2.3:o:mediatek:mt6899_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt6899:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
cpe:2.3:o:mediatek:mt6982vb_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt6982vb:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
cpe:2.3:o:mediatek:mt6986_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt6986:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
cpe:2.3:o:mediatek:mt6988_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt6988:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
cpe:2.3:o:mediatek:mt6991_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt6991:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
cpe:2.3:o:mediatek:mt6993_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt6993:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
cpe:2.3:o:mediatek:mt8668_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt8668:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
cpe:2.3:o:mediatek:mt8676_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt8676:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
cpe:2.3:o:mediatek:mt8678_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt8678:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
cpe:2.3:o:mediatek:mt8755_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt8755:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
cpe:2.3:o:mediatek:mt8775_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt8775:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
cpe:2.3:o:mediatek:mt8792_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt8792:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
cpe:2.3:o:mediatek:mt8793_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt8793:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
cpe:2.3:o:mediatek:mt8863_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt8863:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
cpe:2.3:o:mediatek:mt8873_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt8873:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
cpe:2.3:o:mediatek:mt8883_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt8883:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
  • cpe:2.3:o:mediatek:mt6897_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt6897:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
  • cpe:2.3:o:mediatek:mt6899_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt6899:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
  • cpe:2.3:o:mediatek:mt6982vb_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt6982vb:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
  • cpe:2.3:o:mediatek:mt6986_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt6986:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
  • cpe:2.3:o:mediatek:mt6988_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt6988:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
  • cpe:2.3:o:mediatek:mt6991_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt6991:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
  • cpe:2.3:o:mediatek:mt6993_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt6993:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
  • cpe:2.3:o:mediatek:mt8668_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt8668:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
  • cpe:2.3:o:mediatek:mt8676_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt8676:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
  • cpe:2.3:o:mediatek:mt8678_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt8678:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
  • cpe:2.3:o:mediatek:mt8755_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt8755:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
  • cpe:2.3:o:mediatek:mt8775_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt8775:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
  • cpe:2.3:o:mediatek:mt8792_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt8792:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
  • cpe:2.3:o:mediatek:mt8793_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt8793:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
  • cpe:2.3:o:mediatek:mt8863_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt8863:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
  • cpe:2.3:o:mediatek:mt8873_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt8873:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
  • cpe:2.3:o:mediatek:mt8883_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt8883:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-20500
  2. 2026-10-03 Alias added: GHSA-3wwc-gvmj-fpx5
  3. 2026-11-02 CVSS score changed · CISA ADP

References

  • TI-2026-67565 Out-of-bounds write in MediaTek modem could allow privilege escalation CVSS 3.1HIGH 7.5
  • TI-2026-67564 Out-of-bounds write in MediaTek modem chipsets enables escalation CVSS 3.1HIGH 7.5
  • TI-2026-67571 Out-of-bounds write in MediaTek modem chipsets CVSS 3.1HIGH 7.1
  • TI-2026-67588 Information disclosure in MediaTek modem due to a logic error CVSS 3.1MEDIUM 5.5
  • TI-2026-16644 Reachable assertion in MediaTek chipset CVSS 3.1MEDIUM 5.3
  • TI-2026-67586 Out of bounds read in MediaTek modem enables denial of service CVSS 3.1MEDIUM 5.3
See all 12 →

Sources