Zephyrproject: >> Zephyr Security Vulnerabilities
dns_unpack_name() caches the buffer tailroom once and reuses it while appending DNS labels. As the buffer grows, the cached size becomes incorrect, and the final null terminator can be written past the buffer. With assertions disabled (default), a malicious DNS response can trigger an out-of-bounds write when CONFIG_DNS_RESOLVER is enabled.
CVSS Score
9.4
EPSS Score
0.0
Published
2026-03-05
In preloader, there is a possible read of device unique identifiers due to a logic error. This could lead to local information disclosure, if an attacker has physical access to the device, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS10607099; Issue ID: MSV-6118.
CVSS Score
4.6
EPSS Score
0.0
Published
2026-03-02
In gnss service, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10010443; Issue ID: MSV-3966.
CVSS Score
6.7
EPSS Score
0.0
Published
2025-11-04
In gnss service, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10010441; Issue ID: MSV-3967.
CVSS Score
6.7
EPSS Score
0.0
Published
2025-11-04
Parameters are not validated or sanitized, and are later used in various internal operations.
CVSS Score
7.6
EPSS Score
0.0
Published
2025-09-19
Unsafe handling in bt_conn_tx_processor causes a use-after-free, resulting in a write-before-zero. The written 4 bytes are attacker-controlled, enabling precise memory corruption.
CVSS Score
7.6
EPSS Score
0.0
Published
2025-09-19
A vulnerability was identified in the handling of Bluetooth Low Energy (BLE) fixed channels (such as SMP or ATT). Specifically, an attacker could exploit a flaw that causes the BLE target (i.e., the device under attack) to attempt to disconnect a fixed channel, which is not allowed per the Bluetooth specification. This leads to undefined behavior, including potential assertion failures, crashes, or memory corruption, depending on the BLE stack implementation.
CVSS Score
7.1
EPSS Score
0.0
Published
2025-09-19
The function responsible for handling BLE connection responses does not verify whether a response is expected—that is, whether the device has initiated a connection request. Instead, it relies solely on identifier matching.
CVSS Score
4.3
EPSS Score
0.0
Published
2025-09-19
In DA, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege, if an attacker has physical access to the device, with no additional execution privileges needed. User interaction is needed for exploitation. Patch ID: ALPS09915215; Issue ID: MSV-3801.
CVSS Score
6.8
EPSS Score
0.0
Published
2025-08-04
A denial-of-service issue in the dns implemenation could cause an infinite loop.
CVSS Score
7.5
EPSS Score
0.0
Published
2025-06-24
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