CVE-2025-15645Disclosure

LOWCVSS 5.1 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Ledger Nano X, Flex, and Stax devices contain a denial of service vulnerability in the MCU firmware update process due to missing validation of the reset_handler parameter during firmware flashing. An attacker can provide a crafted reset_handler address pointing to invalid memory or attacker-controlled code to cause the device to enter an unrecoverable fault state during boot, resulting in permanent loss of operability.

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0.0/ 10 priority

Sources & remediation

Other references

Weakness type (CWE)

CWE-1284

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

1 mentions across 1 observed day

What's happening

Technical details provided in 1 signal
Disclosure: 1 classified signal
1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d

Signal classification1 categories

Disclosure

1100.0%

Referenced assets1 URL

By indicator

https://www.cve.org/CVERecord?id=CVE-2025-15645

Full discourse1 post

CVE@CVEnew144d
Disclosure
CVE-2025-15645 Ledger Nano X, Flex, and Stax devices contain a denial of service vulnerability in the MCU firmware update process due to missing validation of the reset_handler para… https://www.cve.org/CVERecord?id=CVE-2025-15645
Post summary
CVE-2025-15645 is a denial‑of‑service vulnerability in Ledger’s firmware update process caused by missing reset_handler validation; no PoC, exploit code, patch, or active exploitation has been reported.
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