CVE-2024-20127Network attack vector

Remote service interruption via unchecked Telephony input

Published Dec 2, 2024 · Updated Dec 2, 2024

Out-of-bounds read in Telephony on MediaTek chipsets running Android 13.0 through 15.0 allows remote attackers to interrupt service. Telephony reads beyond a buffer because it fails to validate an input boundary; MediaTek has not disclosed the affected function or input. No privileges or user interaction are required, and the documented consequence is remote denial of service rather than data disclosure.

CVSS severity7.5
High
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in Telephony on MediaTek chipsets running Android 13.0 through 15.0 allows remote attackers to interrupt service. Telephony reads beyond a buffer because it fails to validate an input boundary; MediaTek has not disclosed the affected function or input. No privileges or user interaction are required, and the documented consequence is remote denial of service rather than data disclosure.

The record

CVE
CVE-2024-20127
Published
Dec 2, 2024
Updated
Dec 2, 2024
Vendor
MediaTek
Product
MT6897
Classifications
CWE-125, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 2, 2024CVE publishedPublication date reported by the CVE source.
  2. Dec 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=*

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

MediaTek · MT6897version=0 <=*
MediaTek · MT8667version=0 <=*
MediaTek · MT8768version=0 <=*
MediaTek · MT6889version=0 <=*
MediaTek · MT8771version=0 <=*
MediaTek · MT6789version=0 <=*
MediaTek · MT6835version=0 <=*
MediaTek · MT6768version=0 <=*
MediaTek · MediaTek MT6785version=0 <=*
MediaTek · MT6855version=0 <=*
MediaTek · MT8766version=0 <=*
MediaTek · MediaTek MT6765version=0 <=*
MediaTek · MediaTek MT8678version=0 <=*
MediaTek · MT6893version=0 <=*
MediaTek · MT6885version=0 <=*
MediaTek · MT8666version=0 <=*
MediaTek · MT8798version=0 <=*
MediaTek · MT8791Tversion=0 <=*
MediaTek · MT6879version=0 <=*
MediaTek · MT6873version=0 <=*
MediaTek · MT6896version=0 <=*
MediaTek · MT6781version=0 <=*
MediaTek · MT6739version=0 <=*
MediaTek · MT6877version=0 <=*
MediaTek · MediaTek MT6878version=0 <=*
MediaTek · MT6886version=0 <=*
MediaTek · MediaTek MT6761version=0 <=*
MediaTek · MT8786version=0 <=*
MediaTek · MT8766Rversion=0 <=*
MediaTek · MT6853version=0 <=*
MediaTek · MT8863Tversion=0 <=*
MediaTek · MT8788Eversion=0 <=*
MediaTek · MT8781version=0 <=*
MediaTek · MT8321version=0 <=*
MediaTek · MT8673version=0 <=*
MediaTek · MT6883version=0 <=*
MediaTek · MT6985version=0 <=*
MediaTek · MT8788version=0 <=*
MediaTek · MT6833version=0 <=*
MediaTek · MT8797version=0 <=*
MediaTek · MT6983version=0 <=*
MediaTek · MediaTek MT6580version=0 <=*
MediaTek · MT8765version=0 <=*
MediaTek · MediaTek MT6779version=0 <=*
MediaTek · MT6895version=0 <=*
MediaTek · MT6989version=0 <=*

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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