---
title: "CVE-2025-27590: Oxidized Web RANCID migration page allows unauthenticated user to gain control over Linux user account"
url: https://erroneo.us/security/cve/CVE-2025-27590/
description: "CVE-2025-27590 (oxidized-web (RubyGems)): In oxidized-web (aka Oxidized Web) before 0.15.0, the RANCID migration page allows an unauthenticated user to gain…"
type: vulnerability-record
section: "Security Digest"
date_published: 2025-03-03
date_modified: 2025-03-04
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2025-27590"
kev: false
cvss: 9
epss: 0.27573
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2025-27590: Oxidized Web RANCID migration page allows unauthenticated user to gain control over Linux user account

**Signal:** High exploit likelihood. EPSS ranks it in the top 5% of all CVEs for likely exploitation in the next 30 days. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 27.6% , percentile 98: FIRST’s model estimates a 27.6% chance of exploitation activity in the next 30 days, higher than 98% of all scored CVEs (very high). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes oxidized-web (RubyGems) < 0.15.0, fixed in 0.15.0 . Check your lockfile, including transitive dependencies.

## What it is

In oxidized-web (aka Oxidized Web) before 0.15.0, the RANCID migration page allows an unauthenticated user to gain control over the Linux user account that is running oxidized-web.

## Affected packages

- RubyGems `oxidized-web` < 0.15.0 → fixed: 0.15.0

## Affected products (CVE record)

- Oxidized Web project Oxidized Web: < 0.15.0

## Severity

- mitre CVSS 3.1: 9 `CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H`
- GitHub CVSS 3.1: 9.0 `CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none , automatable no , technical impact total .
- FIRST EPSS (model of 2026-10-21): 27.57% probability of exploitation activity in the next 30 days; percentile 98.

## Sources

- [GitHub Advisory GHSA-jx6p-9c26-g373](https://github.com/advisories/GHSA-jx6p-9c26-g373)
- [CVE.org record CVE-2025-27590](https://www.cve.org/CVERecord?id=CVE-2025-27590)
- [NVD entry CVE-2025-27590](https://nvd.nist.gov/vuln/detail/CVE-2025-27590)
- [github.com](https://github.com/ytti/oxidized-web/releases/tag/0.15.0)
- [github.com](https://github.com/ytti/oxidized-web/commit/a5220a0ddc57b85cd122bffee228d3ed4901668e)

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Source page: https://erroneo.us/security/cve/CVE-2025-27590/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt