Bravo Compute Box Firmware: Use of a Broken or Risky Cryptographic Algorithm
CVE-2025-59408 is a high-severity use of a broken or risky cryptographic algorithm vulnerability in Bravo Compute Box Firmware from Flocksafety, with a CVSS 3.1 base score of 7.3 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. There is no confirmed exploitation so far. EPSS estimates a 0.25% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of Bravo Compute Box Firmware you run against the affected versions below, and install the vendor's latest release.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Flocksafety | Bravo Compute Box Firmware | Not specified in the record | Not stated |
Version data comes from NVD's product matching. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- LowSome restricted data can be read.
- Integrity
- LowLimited modification of data is possible.
- Availability
- LowPerformance or availability is reduced.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L. Scored by CISA (ADP).
Official description
Flock Safety Bravo Edge AI Compute Device BRAVO_00.00_local_20241017 ships with Secure Boot disabled. This allows an attacker to flash modified firmware with no cryptographic protections.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Use of a Broken or Risky Cryptographic Algorithm
The product uses a broken or risky cryptographic algorithm or protocol.
How developers prevent this class of flaw
- Ensure that the design allows one cryptographic algorithm to be replaced with another in the next generation or version. Where possible, use wrappers to make the interfaces uniform. This will make it easier to upgrade to stronger algorithms. With hardware, design the product at the Intellectual Property (IP) level so that one cryptographic algorithm can be replaced with another in the next generation of the hardware product.
- Carefully manage and protect cryptographic keys (see CWE-320). If the keys can be guessed or stolen, then the strength of the cryptography itself is irrelevant.
- Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid. Industry-standard implementations will save development time and may be more likely to avoid errors that can occur during implementation of cryptographic algorithms. Consider the ESAPI Encryption feature.
More Use of a Broken or Risky Cryptographic Algorithm vulnerabilities (CWE-327)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Technical write-ups (may include proof of concept)
- gainsec.com/2025/09/19/root-from-the-coop-device-3-root-shell-on-flock-safetys-bravo-compute-box/Exploit, Third Party Advisory
- gainsec.com/wp-content/uploads/2025/09/Root-from-the-Coop-Device-3_-Root-Shell-on-Flock-Safetys-Bravo-Compute…Exploit, Third Party Advisory
Other references
Other vulnerabilities in Bravo Compute Box Firmware
- 7.5 High severity
Recent Use of a Broken or Risky Cryptographic Algorithm vulnerabilities
- 8.3 High severity
- 7.2 High severity
- 7.5 High severity
- 7.5 High severity
- 8.1 High severity
- 7.0 High severity
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