# CVE-2025-62004: BullWall Server Intrusion Protection (SIP) initialization race condition

> A local authenticated attacker can bypass Multi-Factor Authentication by logging in during a startup race condition before security services initialize.

- **Severity:** High 7.7 (`CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 18 Dec 2025
- **Updated:** 15 Jan 2026
- **Also known as:** GHSA-chcm-jqp3-j5w3

## What is CVE-2025-62004?

CVE-2025-62004 is a high-severity vulnerability in BullWall Server Intrusion Protection, published on 18 Dec 2025. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

BullWall Server Intrusion Protection (SIP) services are initialized after login services during system startup. A local, authenticated attacker can log in after boot and before SIP MFA is running. The SIP services do not retroactively enforce MFA or disconnect sessions that were not subject to SIP MFA. Versions 4.6.0.0, 4.6.0.6, 4.6.0.7, and 4.6.1.4 are affected. Other versions mayy also be affected. BullWall plans to improve detection method documentation.

Weakness: CWE-367 (Time-of-check Time-of-use (TOCTOU) Race Condition)

## Which versions are affected by CVE-2025-62004?

It affects 1 product.


Products: Bullwall Server Intrusion Protection.

## How do I fix CVE-2025-62004?

No fix has been published for CVE-2025-62004 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-62004 being exploited?

There is no known exploitation of CVE-2025-62004 in the wild and no public exploit code.

## Other vulnerabilities in BullWall Server Intrusion Protection

- [CVE-2025-62003](https://insights.sbomify.com/CVE-2025-62003/): BullWall Server Intrusion Protection RDP MFA connection delay (high 7.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-62004 and fix it if it is affected.

What it is: CVE-2025-62004 is a high-severity vulnerability in BullWall Server Intrusion Protection, published on 18 Dec 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-62004 in the wild and no public exploit code.

Affected product: BullWall Server Intrusion Protection. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-62004/ (Markdown: https://insights.sbomify.com/CVE-2025-62004/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-62004
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-62004
- OSV: https://osv.dev/vulnerability/CVE-2025-62004

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-62004/
Summaries are generated and may contain mistakes; the official description above is the record.