PT-2025-31436 · Arm · Trusted Firmware-M

Bartek Piekarski · Published 2025-07-30 · Updated 2026-01-27 · CVE-2025-53022

Positive Technologies (AI Summary)

CVSS v3.1

8.6

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

Name of the Vulnerable Software and Affected Versions TrustedFirmware-M versions prior to 2.1.3 TrustedFirmware-M versions 2.2.x prior to 2.2.1

Description TrustedFirmware-M lacks length validation during a firmware upgrade. The Firmware Upgrade (FWU) module does not validate the length field of the Type-Length-Value (TLV) structure for dependent components against the maximum allowed size. If the length specified in the TLV exceeds the size of the buffer allocated on the stack, the FWU module will overwrite the buffer and potentially other stack data with the TLV’s value content. An attacker could exploit this by crafting a malicious TLV entry in the unprotected section of the MCUBoot upgrade image, manipulating the stack memory of the system during the upgrade process.

Recommendations Upgrade to TrustedFirmware-M version 2.1.3 or later. Upgrade to TrustedFirmware-M version 2.2.1 or later.

Fix

Stack Overflow

Weakness Enumeration

CWE-121

Related Identifiers

CVE-2025-53022

Affected Products

Trusted Firmware-M

References · 10

• https://osv.dev/vulnerability/UBUNTU-CVE-2025-53022 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-53022 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-53022 · Security Note
• https://cve.org/CVERecord?id=CVE-2025-53022 · Security Note
• https://t.me/CVEtracker/28779 · Telegram Post
• https://twitter.com/mike_tolkachev/status/2016140257616433493 · Twitter Post
• https://trustedfirmware-m.readthedocs.io/en/latest/security/security_advisories/fwu_tlv_payload_out_of_bounds_vulnerability.html · Note
• https://git.trustedfirmware.org/plugins/gitiles/TF-M/trusted-firmware-m.git/+/refs/heads/main/secure_fw/partitions/firmware_update/bootloader/mcuboot/tfm_mcuboot_fwu.c#257 · Note
• https://trustedfirmware.org/projects/tf-m · Note
• https://twitter.com/CVEnew/status/1950645214068322449 · Twitter Post