Out-of-bounds write vulnerability in the file system module.

published 2026-02-06 9 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-5676

cvss: 5.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.1%; EPSS 0.1% chance of exploitation in 30 days, percentile 1%
public exploits: 0; none known

Out-of-bounds write vulnerability in the file system module. Impact: Successful exploitation of this vulnerability may affect service confidentiality.

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 9 mo ago (2026-02-06)

Exploit prediction

0.11% chance of exploitation in the next 30 days, higher than 1% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.8	CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:L
NVD	3.1	5.5	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected products

Huawei HarmonyOS
Huawei EMUI

Classification

Weakness

CWE-680 Integer Overflow to Buffer Overflow
CWE-787 Out-of-bounds Write

References

consumer.huawei.com /en/support/bulletin/2026/2/
vendor-advisory

Sources

CVE List CVE-2026-24928
NVD CVE-2026-24928

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Summary