Buffer overflow in Vim
CVE-2025-9390
A security flaw has been discovered in vim up to 9.1.1615. Affected by this vulnerability is the function main of the file src/xxd/xxd.c of the component xxd. The manipulation results in buffer overflow. The attack requires a local approach. The exploit has been released to the public and may be exploited. Upgrading to version 9.1.1616 addresses this issue. The patch is identified as eeef7c77436a78cd27047b0f5fa6925d56de3cb0. It is recommended to upgrade the affected component.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.003 (17.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 17th percentile — 17.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Vim
- Vim — versions 9.1.1615, 9.1.1616
Weakness classification (CWE)
Public proof-of-concept exploits
References
- vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/ (Exploit, VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/vim/vim/issues/17944 (issue-tracking, Exploit, Issue Tracking, Vendor Advisory)
- github.com/vim/vim/pull/17947 (issue-tracking, Exploit, Issue Tracking)
- drive.google.com/file/d/1JLnqrdcGsjUhbYzIEweXIGZyETjHlKtX/view (Exploit, exploit)
- github.com/vim/vim/commit/eeef7c77436a78cd27047b0f5fa6925d56de3cb0 (Patch, patch)
- github.com/vim/vim/releases/tag/v9.1.1616 (Release Notes, patch)
Frequently asked questions
- What is CVE-2025-9390?
- CVE-2025-9390 is a medium-severity vulnerability in Vim, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.3/10. Published 2025-08-24.
- How severe is CVE-2025-9390?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2025-9390 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.