CVE-2025-55157
Description
A use-after-free vulnerability was found in Vim. This flaw allows an attacker who can trick a user into processing a specially crafted file to trigger the use-after-free, causing the application to crash.
Statement
Red Hat Product Security has rated this issue as having a Low security impact because the user has to run an untrusted file IN SCRIPT MODE. Someone who is running untrusted files in script mode is equivalent to someone just taking a random python script and running it.
For additional information, refer to the Issue Severity Classification [1] and Red Hat Enterprise Linux Life Cycle & Updates Policy.
[1]. https://access.redhat.com/security/updates/classification/
[2]. https://access.redhat.com/support/policy/updates/errata/
Mitigation
Do not run untrusted Vim scripts as it's not recommended.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 6.1 | 8.8 | N/A |
| Attack Vector | Local | Network | N/A |
| Attack Complexity | Low | Low | N/A |
| Privileges Required | None | None | N/A |
| User Interaction | Required | Required | N/A |
| Scope | Unchanged | Unchanged | N/A |
| Confidentiality | None | High | N/A |
| Integrity Impact | Low | High | N/A |
| Availability Impact | High | High | N/A |
Vector
Red Hat: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
NVD: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Red Hat CVSS v3 Score Explanation
Vim is a text editor, not bound to the network stack, meaning this issue is exploited by a local user when a specially crafted file is processed. Additionally, the security impact of this issue is most likely only an application crash with limited memory corruption. To reflect these conditions, the attack vector metric is set to local, the confidentiality metric is set to none and the integrity metric is set to low.
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