How severe is CVE-2025-9389?

CVE-2025-9389 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2025-9389 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-9389?

CVE-2025-9389 affects Vim. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-9389?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-9389 have an EU (EUVD) identifier?

Yes. CVE-2025-9389 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25742.

When was CVE-2025-9389 published?

CVE-2025-9389 was published on 2025-08-24 and last updated on 2026-06-17.

CVE-2025-9389

CVE-2025-9389 is a low-severity vulnerability in Vim with a CVSS 3.x base score of 3.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: Low (CVSS 3.x base score 3.3)
CVSS v2: 1.7
CVSS v4: 1.9
EPSS exploit prediction: 0% (9th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-25742
Weakness: CWE-787
Affected product: Vim
Published: 2025-08-24
Last modified: 2026-06-17

Description

A vulnerability was identified in vim 9.1.0000. Affected is the function __memmove_avx_unaligned_erms of the file memmove-vec-unaligned-erms.S. The manipulation leads to memory corruption. The attack needs to be performed locally. The exploit is publicly available and might be used. Some users are not able to reproduce this. One of the users mentions that this appears not to be working, "when coloring is turned on".

Frequently asked questions

What is CVE-2025-9389?: A vulnerability was identified in vim 9.1.0000. Affected is the function __memmove_avx_unaligned_erms of the file memmove-vec-unaligned-erms.S. The manipulation leads to memory corruption. The attack needs to be performed locally. The exploit is publicly available and might be used. Some users are not able to reproduce this. One of the users mentions that this appears not to be working, "when coloring is turned on".
How severe is CVE-2025-9389?: CVE-2025-9389 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2025-9389 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-9389?: CVE-2025-9389 affects Vim. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-9389?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-9389 have an EU (EUVD) identifier?: Yes. CVE-2025-9389 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25742.
When was CVE-2025-9389 published?: CVE-2025-9389 was published on 2025-08-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:vim:vim:9.1.0000:*:*:*:*:*:*:*

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