# CVE-2025-31977: A cryptographic weakness has been identified in the HCL BigFix Service Management (SM)

> An attacker with network access can decrypt or manipulate encrypted communications in HCL BigFix SM due to weak encryption algorithms.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A: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:** 28 Aug 2025
- **Updated:** 28 Aug 2025
- **Also known as:** GHSA-6r63-35xr-975q

## What is CVE-2025-31977?

CVE-2025-31977 is a medium-severity vulnerability in HCL Software BigFix Service Management (SM), published on 28 Aug 2025. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

HCL BigFix SM is affected by cryptographic weakness due to weak or outdated encryption algorithms.  An attacker with network access could exploit this weakness to decrypt or manipulate encrypted communications under certain conditions.

Weakness: CWE-311 (Missing Encryption of Sensitive Data)

## Which versions are affected by CVE-2025-31977?

It affects 1 product.


Products: Hcltech Bigfix Service Management.

## How do I fix CVE-2025-31977?

No fix has been published for CVE-2025-31977 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-31977 being exploited?

There is no known exploitation of CVE-2025-31977 in the wild and no public exploit code.

## Other vulnerabilities in HCL Software BigFix Service Management (SM)

- [CVE-2026-67100](https://insights.sbomify.com/CVE-2026-67100/): HCL BigFix Service Management is affected by multiple security vulnerabilities. (critical 9.8)
- [CVE-2026-67101](https://insights.sbomify.com/CVE-2026-67101/): HCL BigFix Service Management is affected by multiple security vulnerabilities. (critical 9.3)
- [CVE-2024-30151](https://insights.sbomify.com/CVE-2024-30151/): HCL BigFix Service Management (SM) is susceptible to Broken Access Control Vulnerability (high 8.3)
- [CVE-2026-67102](https://insights.sbomify.com/CVE-2026-67102/): HCL BigFix Service Management is affected by multiple security vulnerabilities. (high 8.1)
- [CVE-2026-67103](https://insights.sbomify.com/CVE-2026-67103/): HCL BigFix Service Management is affected by multiple security vulnerabilities. (high 7.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-31977 and fix it if it is affected.

What it is: CVE-2025-31977 is a medium-severity vulnerability in HCL Software BigFix Service Management (SM), published on 28 Aug 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-2025-31977 in the wild and no public exploit code.

Affected product: HCL Software BigFix Service Management (SM). 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-2025-31977/ (Markdown: https://insights.sbomify.com/CVE-2025-31977/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-31977
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-31977
- OSV: https://osv.dev/vulnerability/CVE-2025-31977

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-31977/
Summaries are generated and may contain mistakes; the official description above is the record.