CVE-2024-8946

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

1.01% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 60.7% of scored records. A rank, not a probability.

NVD base score

6.9 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2024-09-17 18:31Z1 YR AGO

Last updated

2024-09-17 20:14Z1 YR AGO

Reserved

2024-09-17

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 6.9)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

Weaknesses

• CWE-122Heap-based Buffer OverflowVariant
• CWE-787Out-of-bounds WriteBase

Data version

5.1

Document digest

5fc0c710a93cfe8faf319d90a5f0c9c4ef0ebf2b211840819ca40da36a87ffc4

• vuldb.comVDB-277764 | MicroPython VFS Unmount vfs.c mp_vfs_umount heap-based overflowhttps://vuldb.com/?id.277764vdb-entrytechnical-description
• vuldb.comVDB-277764 | CTI Indicators (IOB, IOC, IOA)https://vuldb.com/?ctiid.277764signaturepermissions-required
• vuldb.comSubmit #409312 | micropython v1.23.0 Heap-based Buffer Overflowhttps://vuldb.com/?submit.409312third-party-advisory
• github.comhttps://github.com/micropython/micropython/issues/13006exploitissue-tracking
• github.comhttps://github.com/micropython/micropython/issues/13006#issuecomment-1820309455issue-tracking
• github.comhttps://github.com/micropython/micropython/commit/29943546343c92334e8518695a11fc0e2ceea68bpatch