What is the CVSS score of CVE-2022-40363?

CVE-2022-40363 has a CVSS 3.1 base score of 5.5 (Medium). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.4%.

Is there a public PoC exploit available for CVE-2022-40363?

Yes, a public proof-of-concept exploit is available for CVE-2022-40363. Prioritise patching immediately. EPSS: 0.4%.

Flipper Zero Firmware CVE-2022-40363

MEDIUM

Out-of-bounds Write (CWE-787)

2022-09-29 cve@mitre.org

Memory Corruption Denial Of Service Buffer Overflow Flipper Zero Firmware

5.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.5 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

CVE Published

Sep 29, 2022 - 13:15 nvd

MEDIUM 5.5

DescriptionNVD

A buffer overflow in the component nfc_device_load_mifare_ul_data of Flipper Devices Inc., Flipper Zero before v0.65.2 allows attackers to cause a Denial of Service (DoS) via a crafted NFC file.

AnalysisAI

A buffer overflow in the component nfc_device_load_mifare_ul_data of Flipper Devices Inc., Flipper Zero before v0.65.2 allows attackers to cause a Denial of Service (DoS) via a crafted NFC file. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Out-of-bounds Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. A buffer overflow in the component nfc_device_load_mifare_ul_data of Flipper Devices Inc., Flipper Zero before v0.65.2 allows attackers to cause a Denial of Service (DoS) via a crafted NFC file. Affected products include: Flipperzero Flipper Zero Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate write boundaries, use memory-safe languages, enable compiler protections (ASLR, stack canaries).