Mt6881 Firmware
Monthly
An out-of-bounds write in MediaTek modem (baseband) firmware allows an attacker operating a rogue base station to escalate privileges on a wide range of MediaTek chipsets (e.g., MT6853, MT6980, MT6991, MT8798, MT6895) once the victim's device connects to that base station; no authentication is required, but exploitation is high-complexity and requires user interaction per the assessed vector. No public exploit code or confirmed active exploitation has been identified at time of analysis, and the risk is bounded by the need for RF proximity to a malicious base station rather than being a mass-exploitable remote flaw.
Local privilege escalation in MediaTek NeuroPilot on affected chipsets (MT8781, MT8189, MT6993, MT8793, MT8910, MT8668, MT8188, MT6881, MT8875) allows an attacker with local code execution to trigger an out-of-bounds write in the APU/AI driver, potentially gaining high-integrity code execution with no user interaction, though no additional privileges are needed once that local app context exists. Vendor patch ALPS11249062 is available; no public exploit identified at time of analysis. It is a high-priority patch target for affected MediaTek-based devices but is not remotely reachable, limiting its scope to privilege escalation rather than initial compromise.
Local privilege escalation in MediaTek's NeuroPilot component allows an attacker with an existing foothold on a device to corrupt memory and elevate privileges via an out-of-bounds write caused by a missing bounds check (CWE-787), rated CVSS 8.4 (AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H). Affected platforms are devices built on MediaTek chipsets MT8668, MT8875, MT8781, MT8910, MT6881, MT8188, MT8189 and MT6993 that ship an unpatched NeuroPilot build. The flaw is not remotely reachable and requires local code execution (typically a running or installed Android app with no special privileges); no user interaction or elevated permissions are needed once that foothold exists, and no public exploit code was identified at time of analysis.
Local privilege escalation in MediaTek's Video HAL lets an unprivileged app already running on an affected device corrupt a fixed-size stack buffer via crafted input to the video hardware abstraction layer, yielding code execution in the HAL context with high impact to confidentiality, integrity and availability (CVSS 8.4, AV:L/PR:N/UI:N). The flaw stems from a missing bounds check (CWE-121, stack-based buffer overflow) and affects roughly four dozen MediaTek chipsets spanning the MT6xxx, MT8xxx and MT2718 families used in Android phones, tablets, Chromebooks and automotive platforms. No user interaction and no additional execution privileges are required once local code execution exists, but the attack vector is local only - remote exploitation is not indicated and no public exploit code has been identified at time of analysis. MediaTek has assigned patch ID ALPS11375674 (issue MSV-9571), delivered to OEMs through its October 2026 product security bulletin.
Memory corruption in the MediaTek cellular modem baseband (an out-of-bounds write from a missing bounds check) allows an attacker who operates a rogue base station within radio range to escalate privileges on the target device without authentication and without any user interaction. Exploitation is not reachable over the internet: the CVSS vector AV:A/AC:H/PR:N/UI:N with C:H/I:H/A:H reflects that the attacker must be in adjacent radio proximity and must successfully induce the victim's UE to attach to the malicious base station, and CISA's SSVC assessment records Exploitation: none and Automatable: no, so this is a conditionally gated baseband flaw rather than a mass-exploitation emergency. No public exploit code has been identified at time of analysis; MediaTek has released a fix under Patch ID MOLY01778988 (Issue ID MSV-8897) in its October 2026 product security bulletin.
An out-of-bounds write in MediaTek modem firmware (CWE-787) allows a nearby attacker operating a rogue base station to escalate privileges on affected devices once the user equipment attaches to the attacker-controlled cell. The flaw has a CVSS 3.1 base score of 7.5 (AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H) and affects dozens of MediaTek chipsets, including MT6833, MT6877, MT6983, MT6985, and MT6989, when they run unpatched modem firmware. No public exploit code has been identified at time of analysis, CISA's SSVC assessment records no observed exploitation and marks the issue as not automatable, and MediaTek has published a fix under Patch ID MOLY01778993 in its October 2026 product security bulletin.
Local privilege escalation in MediaTek's meta component affects numerous MediaTek chipsets (including MT6789, MT6895, MT6985, MT8195, and others listed in EUVD-2026-92196) and allows an attacker with physical access to the device to trigger an out-of-bounds write due to a missing bounds check, achieving high confidentiality and integrity impact. No authentication, existing execution privileges, or user interaction are required once physical access is obtained. No public exploit has been identified at time of analysis; the physical access prerequisite limits remote exploitation and confines realistic abuse to scenarios such as lost or stolen devices, border inspection, or supply-chain tampering.
Local information disclosure in MediaTek Modem firmware affects devices built on more than 80 MediaTek chipset models, including MT6983, MT6895, MT6989, and MT6768, when running unpatched modem firmware. A local app with ordinary low privileges (PR:L) can access sensitive modem debug information without user interaction, yielding high confidentiality impact but no code execution or integrity/availability loss; CVSS is 5.5 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N). No public exploit code has been identified at time of analysis, and there is no CISA KEV entry indicating confirmed active exploitation, but MediaTek patch MOLY01645293 and the October 2026 product security bulletin address the flaw.
A missing permission check in MediaTek modem firmware permits an out-of-bounds read that can crash the baseband, producing a remote denial of service on affected handsets. The attack is unauthenticated (CVSS PR:N) and requires no user interaction (UI:N), but it only succeeds if the victim UE is already camped on a rogue base station the attacker controls, which is why the vector is scored AV:A/AC:H and the issue is assessed as moderate severity and low real-world priority. No public exploit code has been identified at the time of analysis, and impact is limited to availability of the modem - no confidentiality or integrity loss, and no code execution. MediaTek has issued a fix under Patch ID MOLY01774038 / Issue ID MSV-8911.
Remote denial of service against MediaTek modem (baseband) firmware affects more than 80 chipsets - including MT6765, MT6785, MT6833, MT6883, MT6985, MT6991 and MT8798 - where a missing bounds check during cellular message parsing produces an out-of-bounds read (CWE-126) that can crash the baseband. An attacker who operates a rogue base station and gets a victim UE to attach can trigger the fault with no authentication (PR:N) and no user interaction (UI:N), though the adjacent-network position and specialized radio hardware required drive the high attack complexity (AC:H) and the CVSS 3.1 score of 5.3, with impact limited to availability. Neither our independent assessment nor CISA's SSVC framework records known exploitation (Exploitation: none, Automatable: no), so no public exploit is identified at time of analysis.
Out-of-bounds read in MediaTek modem firmware (CWE-126) allows an attacker operating a rogue base station to trigger a memory over-read in the modem stack of any UE that connects to it, resulting in a remote denial of service (availability only; no data exposure or code execution). The issue affects a very wide set of MediaTek chipsets (MT6989, MT6990, MT6983, MT6768, MT6765 and dozens more) enumerated in MediaTek's October 2026 product security bulletin. No authentication or user interaction is required (CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H, base 5.3), but practical exploitation demands radio proximity, rogue base-station infrastructure, and the ability to coerce device attachment - CISA SSVC rates exploitation 'none' and automatable 'no', and no public exploit code or confirmed active exploitation was identified at time of analysis, making this a genuine but moderate-priority issue rather than a critical one.
Denial of service against the cellular modem firmware shipped in a very broad range of MediaTek chipsets (MT6739 through MT6993/MT8893 families) arises from an out-of-bounds read caused by a missing permission check. The precondition is that the victim user equipment has already attached to a rogue base station under the attacker's control, meaning the adversary must operate radio infrastructure within range and successfully induce attachment (downgrade or stronger-signal lure) - hence the AV:A/AC:H scoring and the LOW real-world priority despite the enormous chipset footprint. Once attached, exploiting the flaw requires no authentication (PR:N) and no user interaction (UI:N), but the outcome is availability-only (A:H, with no confidentiality or integrity impact); there is confirmed no active exploitation (CISA KEV absent), no public exploit code identified at time of analysis, and no EPSS signal was provided in the source data.
Local privilege escalation in MediaTek AIDL on affected chipsets is possible via a use-after-free memory corruption, but only after an attacker has already obtained Android System privilege and local access. Successful exploitation requires no user interaction and can yield high confidentiality, integrity, and availability impact within that privileged context. No public exploit identified at time of analysis; the vendor patch ID ALPS11185225 and the October 2026 MediaTek security bulletin address the issue.
Local privilege escalation in the aidl component shipped on a defined set of MediaTek chipsets (MT6899, MT6991, MT8910, MT8781, MT6881, MT8668, MT6989, MT8188, MT6878, MT6993, MT8695, MT8189, MT8696) allows a process that already holds Android System privilege to trigger a use-after-free, corrupt memory, and gain higher-integrity code execution with high confidentiality, integrity, and availability impact. The attack is local (AV:L) and needs no user interaction, but the PR:H prerequisite means it cannot be used for initial access and only functions as a follow-on escalation from an already-compromised privileged context. At time of analysis there is no confirmed active exploitation (not in CISA KEV) and no public exploit identified at time of analysis; EPSS data was not supplied for this CVE. MediaTek has published a fix under Patch ID ALPS11242428 in its October 2026 Product Security Bulletin.
A missing permission check in the MediaTek AIDL (Android Interface Definition Language) component allows an attacker who already holds the Android System privilege to escalate to higher privileges locally, with no user interaction required. The expected impact is high across confidentiality, integrity, and availability (CVSS 3.1 base 6.7, AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H), but the local-only vector and the PR:H precondition mean an ordinary unprivileged app cannot trigger it directly - it is only useful as a second-stage step in an existing exploit chain or for already-privileged malware. There is no public exploit identified at time of analysis and no confirmed active exploitation (CISA KEV); this is a moderate, defense-in-depth issue rather than a top-tier emergency.
Modem denial of service in MediaTek baseband firmware allows an attacker operating a rogue base station within radio range to crash or reset a victim handset's modem through an out-of-bounds read (CWE-125) caused by an incorrect bounds check on attacker-influenced over-the-air data. The attacker must first get the target UE to camp on the malicious cell (CVSS 3.1 AV:A/AC:H), after which no privileges and no user interaction are required, and the only impact is loss of availability of the modem (A:H, C:N/I:N), yielding a 5.3 base score. There is no public exploit identified at time of analysis, CISA's SSVC assessment records Exploitation=none and Automatable=no, and applicability is limited to devices built on the enumerated MediaTek chipset models with vulnerable modem firmware, so this is a genuine but bounded, proximity-dependent availability risk rather than a mass-exploitation emergency.
Local privilege escalation in the battery component shipped with a wide range of MediaTek chipsets (including MT6765, MT6768, MT6853, MT6893, MT6991, MT8186, MT8188 and MT8196) allows an attacker who already holds System privilege to trigger an out-of-bounds write through a missing bounds check, yielding high impact to confidentiality, integrity and availability. No user interaction is required once System access is held, and the flaw is reachable in default configurations of the listed chipsets, making it a post-compromise escalation rather than an initial foothold; the CVSS 6.7 score is dominated by the PR:H prerequisite. A vendor patch is available under MediaTek's October 2026 Product Security Bulletin (patch ID ALPS11276677, issue MSV-9217), and no public exploit code or confirmed active exploitation has been identified at time of analysis.
Denial of service in MediaTek cellular modem firmware lets an attacker running a rogue base station crash the modem of an attached device by delivering a malformed message that triggers a missing bounds check, severing cellular connectivity until the modem restarts. The flaw is availability-only (CVSS 5.3, AV:A/AC:H/PR:N/UI:N/C:N/I:N/A:H) and is gated by radio proximity plus the victim UE actually attaching to the attacker-controlled cell, so it is not reachable over the internet and carries no confidentiality or integrity impact. No public exploit code and no confirmed active exploitation were identified at time of analysis, and MediaTek has shipped fixes (patch IDs MOLY01864925 / MOLY01210562) covering more than 50 chipsets across the October 2026 product security bulletin.
Denial of service in MediaTek's cellular modem firmware can crash the baseband on a broad set of MediaTek chipsets - including MT6991, MT6988, MT6897, MT8755, MT6835, MT8792 and others - causing the device to drop connectivity or reset. Exploitation is unauthenticated (PR:N, UI:N) but requires the attacker to operate a rogue, attacker-controlled base station and to get the target user equipment to attach to it over the radio interface, which is why attack complexity is rated high (AV:A/AC:H) and impact is limited to availability (A:H; no confidentiality or integrity effect). MediaTek publishes fix identifiers MOLY01870473 / MOLY00814393 (issue MSV-9041) in its October 2026 product security bulletin; no public exploit code and no confirmed active exploitation have been identified at time of analysis, and CISA's SSVC assessment rates exploitation as 'none' with partial technical impact, keeping real-world priority moderate-to-low despite the large number of affected chipsets.
An out-of-bounds write in MediaTek modem (baseband) firmware allows an attacker operating a rogue base station to escalate privileges on a wide range of MediaTek chipsets (e.g., MT6853, MT6980, MT6991, MT8798, MT6895) once the victim's device connects to that base station; no authentication is required, but exploitation is high-complexity and requires user interaction per the assessed vector. No public exploit code or confirmed active exploitation has been identified at time of analysis, and the risk is bounded by the need for RF proximity to a malicious base station rather than being a mass-exploitable remote flaw.
Local privilege escalation in MediaTek NeuroPilot on affected chipsets (MT8781, MT8189, MT6993, MT8793, MT8910, MT8668, MT8188, MT6881, MT8875) allows an attacker with local code execution to trigger an out-of-bounds write in the APU/AI driver, potentially gaining high-integrity code execution with no user interaction, though no additional privileges are needed once that local app context exists. Vendor patch ALPS11249062 is available; no public exploit identified at time of analysis. It is a high-priority patch target for affected MediaTek-based devices but is not remotely reachable, limiting its scope to privilege escalation rather than initial compromise.
Local privilege escalation in MediaTek's NeuroPilot component allows an attacker with an existing foothold on a device to corrupt memory and elevate privileges via an out-of-bounds write caused by a missing bounds check (CWE-787), rated CVSS 8.4 (AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H). Affected platforms are devices built on MediaTek chipsets MT8668, MT8875, MT8781, MT8910, MT6881, MT8188, MT8189 and MT6993 that ship an unpatched NeuroPilot build. The flaw is not remotely reachable and requires local code execution (typically a running or installed Android app with no special privileges); no user interaction or elevated permissions are needed once that foothold exists, and no public exploit code was identified at time of analysis.
Local privilege escalation in MediaTek's Video HAL lets an unprivileged app already running on an affected device corrupt a fixed-size stack buffer via crafted input to the video hardware abstraction layer, yielding code execution in the HAL context with high impact to confidentiality, integrity and availability (CVSS 8.4, AV:L/PR:N/UI:N). The flaw stems from a missing bounds check (CWE-121, stack-based buffer overflow) and affects roughly four dozen MediaTek chipsets spanning the MT6xxx, MT8xxx and MT2718 families used in Android phones, tablets, Chromebooks and automotive platforms. No user interaction and no additional execution privileges are required once local code execution exists, but the attack vector is local only - remote exploitation is not indicated and no public exploit code has been identified at time of analysis. MediaTek has assigned patch ID ALPS11375674 (issue MSV-9571), delivered to OEMs through its October 2026 product security bulletin.
Memory corruption in the MediaTek cellular modem baseband (an out-of-bounds write from a missing bounds check) allows an attacker who operates a rogue base station within radio range to escalate privileges on the target device without authentication and without any user interaction. Exploitation is not reachable over the internet: the CVSS vector AV:A/AC:H/PR:N/UI:N with C:H/I:H/A:H reflects that the attacker must be in adjacent radio proximity and must successfully induce the victim's UE to attach to the malicious base station, and CISA's SSVC assessment records Exploitation: none and Automatable: no, so this is a conditionally gated baseband flaw rather than a mass-exploitation emergency. No public exploit code has been identified at time of analysis; MediaTek has released a fix under Patch ID MOLY01778988 (Issue ID MSV-8897) in its October 2026 product security bulletin.
An out-of-bounds write in MediaTek modem firmware (CWE-787) allows a nearby attacker operating a rogue base station to escalate privileges on affected devices once the user equipment attaches to the attacker-controlled cell. The flaw has a CVSS 3.1 base score of 7.5 (AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H) and affects dozens of MediaTek chipsets, including MT6833, MT6877, MT6983, MT6985, and MT6989, when they run unpatched modem firmware. No public exploit code has been identified at time of analysis, CISA's SSVC assessment records no observed exploitation and marks the issue as not automatable, and MediaTek has published a fix under Patch ID MOLY01778993 in its October 2026 product security bulletin.
Local privilege escalation in MediaTek's meta component affects numerous MediaTek chipsets (including MT6789, MT6895, MT6985, MT8195, and others listed in EUVD-2026-92196) and allows an attacker with physical access to the device to trigger an out-of-bounds write due to a missing bounds check, achieving high confidentiality and integrity impact. No authentication, existing execution privileges, or user interaction are required once physical access is obtained. No public exploit has been identified at time of analysis; the physical access prerequisite limits remote exploitation and confines realistic abuse to scenarios such as lost or stolen devices, border inspection, or supply-chain tampering.
Local information disclosure in MediaTek Modem firmware affects devices built on more than 80 MediaTek chipset models, including MT6983, MT6895, MT6989, and MT6768, when running unpatched modem firmware. A local app with ordinary low privileges (PR:L) can access sensitive modem debug information without user interaction, yielding high confidentiality impact but no code execution or integrity/availability loss; CVSS is 5.5 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N). No public exploit code has been identified at time of analysis, and there is no CISA KEV entry indicating confirmed active exploitation, but MediaTek patch MOLY01645293 and the October 2026 product security bulletin address the flaw.
A missing permission check in MediaTek modem firmware permits an out-of-bounds read that can crash the baseband, producing a remote denial of service on affected handsets. The attack is unauthenticated (CVSS PR:N) and requires no user interaction (UI:N), but it only succeeds if the victim UE is already camped on a rogue base station the attacker controls, which is why the vector is scored AV:A/AC:H and the issue is assessed as moderate severity and low real-world priority. No public exploit code has been identified at the time of analysis, and impact is limited to availability of the modem - no confidentiality or integrity loss, and no code execution. MediaTek has issued a fix under Patch ID MOLY01774038 / Issue ID MSV-8911.
Remote denial of service against MediaTek modem (baseband) firmware affects more than 80 chipsets - including MT6765, MT6785, MT6833, MT6883, MT6985, MT6991 and MT8798 - where a missing bounds check during cellular message parsing produces an out-of-bounds read (CWE-126) that can crash the baseband. An attacker who operates a rogue base station and gets a victim UE to attach can trigger the fault with no authentication (PR:N) and no user interaction (UI:N), though the adjacent-network position and specialized radio hardware required drive the high attack complexity (AC:H) and the CVSS 3.1 score of 5.3, with impact limited to availability. Neither our independent assessment nor CISA's SSVC framework records known exploitation (Exploitation: none, Automatable: no), so no public exploit is identified at time of analysis.
Out-of-bounds read in MediaTek modem firmware (CWE-126) allows an attacker operating a rogue base station to trigger a memory over-read in the modem stack of any UE that connects to it, resulting in a remote denial of service (availability only; no data exposure or code execution). The issue affects a very wide set of MediaTek chipsets (MT6989, MT6990, MT6983, MT6768, MT6765 and dozens more) enumerated in MediaTek's October 2026 product security bulletin. No authentication or user interaction is required (CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H, base 5.3), but practical exploitation demands radio proximity, rogue base-station infrastructure, and the ability to coerce device attachment - CISA SSVC rates exploitation 'none' and automatable 'no', and no public exploit code or confirmed active exploitation was identified at time of analysis, making this a genuine but moderate-priority issue rather than a critical one.
Denial of service against the cellular modem firmware shipped in a very broad range of MediaTek chipsets (MT6739 through MT6993/MT8893 families) arises from an out-of-bounds read caused by a missing permission check. The precondition is that the victim user equipment has already attached to a rogue base station under the attacker's control, meaning the adversary must operate radio infrastructure within range and successfully induce attachment (downgrade or stronger-signal lure) - hence the AV:A/AC:H scoring and the LOW real-world priority despite the enormous chipset footprint. Once attached, exploiting the flaw requires no authentication (PR:N) and no user interaction (UI:N), but the outcome is availability-only (A:H, with no confidentiality or integrity impact); there is confirmed no active exploitation (CISA KEV absent), no public exploit code identified at time of analysis, and no EPSS signal was provided in the source data.
Local privilege escalation in MediaTek AIDL on affected chipsets is possible via a use-after-free memory corruption, but only after an attacker has already obtained Android System privilege and local access. Successful exploitation requires no user interaction and can yield high confidentiality, integrity, and availability impact within that privileged context. No public exploit identified at time of analysis; the vendor patch ID ALPS11185225 and the October 2026 MediaTek security bulletin address the issue.
Local privilege escalation in the aidl component shipped on a defined set of MediaTek chipsets (MT6899, MT6991, MT8910, MT8781, MT6881, MT8668, MT6989, MT8188, MT6878, MT6993, MT8695, MT8189, MT8696) allows a process that already holds Android System privilege to trigger a use-after-free, corrupt memory, and gain higher-integrity code execution with high confidentiality, integrity, and availability impact. The attack is local (AV:L) and needs no user interaction, but the PR:H prerequisite means it cannot be used for initial access and only functions as a follow-on escalation from an already-compromised privileged context. At time of analysis there is no confirmed active exploitation (not in CISA KEV) and no public exploit identified at time of analysis; EPSS data was not supplied for this CVE. MediaTek has published a fix under Patch ID ALPS11242428 in its October 2026 Product Security Bulletin.
A missing permission check in the MediaTek AIDL (Android Interface Definition Language) component allows an attacker who already holds the Android System privilege to escalate to higher privileges locally, with no user interaction required. The expected impact is high across confidentiality, integrity, and availability (CVSS 3.1 base 6.7, AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H), but the local-only vector and the PR:H precondition mean an ordinary unprivileged app cannot trigger it directly - it is only useful as a second-stage step in an existing exploit chain or for already-privileged malware. There is no public exploit identified at time of analysis and no confirmed active exploitation (CISA KEV); this is a moderate, defense-in-depth issue rather than a top-tier emergency.
Modem denial of service in MediaTek baseband firmware allows an attacker operating a rogue base station within radio range to crash or reset a victim handset's modem through an out-of-bounds read (CWE-125) caused by an incorrect bounds check on attacker-influenced over-the-air data. The attacker must first get the target UE to camp on the malicious cell (CVSS 3.1 AV:A/AC:H), after which no privileges and no user interaction are required, and the only impact is loss of availability of the modem (A:H, C:N/I:N), yielding a 5.3 base score. There is no public exploit identified at time of analysis, CISA's SSVC assessment records Exploitation=none and Automatable=no, and applicability is limited to devices built on the enumerated MediaTek chipset models with vulnerable modem firmware, so this is a genuine but bounded, proximity-dependent availability risk rather than a mass-exploitation emergency.
Local privilege escalation in the battery component shipped with a wide range of MediaTek chipsets (including MT6765, MT6768, MT6853, MT6893, MT6991, MT8186, MT8188 and MT8196) allows an attacker who already holds System privilege to trigger an out-of-bounds write through a missing bounds check, yielding high impact to confidentiality, integrity and availability. No user interaction is required once System access is held, and the flaw is reachable in default configurations of the listed chipsets, making it a post-compromise escalation rather than an initial foothold; the CVSS 6.7 score is dominated by the PR:H prerequisite. A vendor patch is available under MediaTek's October 2026 Product Security Bulletin (patch ID ALPS11276677, issue MSV-9217), and no public exploit code or confirmed active exploitation has been identified at time of analysis.
Denial of service in MediaTek cellular modem firmware lets an attacker running a rogue base station crash the modem of an attached device by delivering a malformed message that triggers a missing bounds check, severing cellular connectivity until the modem restarts. The flaw is availability-only (CVSS 5.3, AV:A/AC:H/PR:N/UI:N/C:N/I:N/A:H) and is gated by radio proximity plus the victim UE actually attaching to the attacker-controlled cell, so it is not reachable over the internet and carries no confidentiality or integrity impact. No public exploit code and no confirmed active exploitation were identified at time of analysis, and MediaTek has shipped fixes (patch IDs MOLY01864925 / MOLY01210562) covering more than 50 chipsets across the October 2026 product security bulletin.
Denial of service in MediaTek's cellular modem firmware can crash the baseband on a broad set of MediaTek chipsets - including MT6991, MT6988, MT6897, MT8755, MT6835, MT8792 and others - causing the device to drop connectivity or reset. Exploitation is unauthenticated (PR:N, UI:N) but requires the attacker to operate a rogue, attacker-controlled base station and to get the target user equipment to attach to it over the radio interface, which is why attack complexity is rated high (AV:A/AC:H) and impact is limited to availability (A:H; no confidentiality or integrity effect). MediaTek publishes fix identifiers MOLY01870473 / MOLY00814393 (issue MSV-9041) in its October 2026 product security bulletin; no public exploit code and no confirmed active exploitation have been identified at time of analysis, and CISA's SSVC assessment rates exploitation as 'none' with partial technical impact, keeping real-world priority moderate-to-low despite the large number of affected chipsets.