PT-2026-5642

Name of the Vulnerable Software and Affected Versions Modem affected versions not specified Description A flaw exists in Modem that may lead to a system crash due to improper error handling. This could result in a remote denial of service if a User Equipment UE connects to a malicious base statio...

PT-2026-5629

Name of the Vulnerable Software and Affected Versions Modem affected versions not specified Description A system crash due to an uncaught exception may lead to remote denial of service. This can occur if a User Equipment UE connects to a rogue base station controlled by an attacker, requiring no...

PT-2026-5625

Name of the Vulnerable Software and Affected Versions Modem affected versions not specified Description A flaw exists in Modem that could lead to a remote denial of service. This occurs due to improper input validation, potentially causing a system crash. An attacker could exploit this by having ...

CVE-2026-20422: Reachable Assertion

In Modem, there is a possible system crash due to improper input validation. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patc...

CVE-2026-20401: Reachable Assertion

In Modem, there is a possible system crash due to an uncaught exception. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID...

CVE-2026-20403: Out-of-bounds Write

In Modem, there is a possible system crash due to a missing bounds check. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch I...

CVE-2026-20404: Out-of-bounds Write

In Modem, there is a possible system crash due to improper input validation. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patc...

PT-2026-5624

Name of the Vulnerable Software and Affected Versions Modem affected versions not specified Description A system crash due to an uncaught exception may lead to remote denial of service. This can occur if a User Equipment UE connects to a rogue base station controlled by an attacker, requiring no...

PT-2026-5643

In Modem, there is a possible system crash due to improper input validation. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patc...

PT-2026-5644

In Modem, there is a possible system crash due to improper input validation. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patc...

PT-2026-5627

Name of the Vulnerable Software and Affected Versions Modem affected versions not specified Description A flaw exists in Modem that could lead to a remote denial of service. This occurs due to improper input validation, potentially causing a system crash. An attacker can exploit this issue if a...

PT-2026-5626

Name of the Vulnerable Software and Affected Versions Modem affected versions not specified Description A missing bounds check in the Modem software could lead to a system crash and a remote denial of service. This scenario occurs if a User Equipment UE connects to a rogue base station controlled...

PT-2026-5628

Name of the Vulnerable Software and Affected Versions Modem affected versions not specified Description A missing bounds check in Modem could lead to a remote denial of service. This occurs if a User Equipment UE connects to a rogue base station controlled by an attacker. Exploitation does not...

CVE-2026-20402: Out-of-bounds Write

In Modem, there is a possible system crash due to improper input validation. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patc...

CVE-2026-20406: Allocation of Resources Without Limits or Throttling

In Modem, there is a possible system crash due to an uncaught exception. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID...

A week in security (January 19 – January 25)

Last week on Malwarebytes Labs: Spammers abuse Zendesk to flood inboxes with legitimate-looking emails, but why? Fake LastPass maintenance emails target users Under Armour ransomware breach: data of 72 million customers appears on the dark web Can you use too many LOLBins to drop some RATs?...

Improper Verification of Cryptographic Signature

Overview Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature via the JWT verification process. An attacker can gain unauthorized enrollment of rogue devices by submitting a forged JWT with arbitrary identity claims, as the system fails to verify th...

Fleet has a JWT signature bypass vulnerability in Azure AD MDM enrollment

Summary A vulnerability in Fleet’s Windows MDM enrollment flow could allow an attacker to submit forged authentication tokens that are not properly validated. Because JWT signatures were not verified, Fleet could accept attacker-controlled identity claims, enabling enrollment of unauthorized...

Improper Verification of Cryptographic Signature

Overview Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature via the JWT verification process. An attacker can gain unauthorized enrollment of rogue devices by submitting a forged JWT with arbitrary identity claims, as the system fails to verify th...

Improper Verification of Cryptographic Signature

Overview Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature via the JWT verification process. An attacker can gain unauthorized enrollment of rogue devices by submitting a forged JWT with arbitrary identity claims, as the system fails to verify th...