# CVE-2025-5519: ArgusTech BILGER sensitive information disclosure via message identifiers

Source: https://junglewise.ai/threats/cve-2025-5519-argustech-bilger-sensitive-information-disclosure-via-message  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-09-16. Updated: 2026-06-05  
License: CC BY 4.0 with a link back

CVE-2025-5519 · Severity: medium · CVSS 6.5 · Published 2025-09-16

ArgusTech BILGER is susceptible to a security flaw that allows sensitive information to be included in transmitted data. This vulnerability enables an attacker to manipulate message identifiers, potentially leading to unauthorized data exposure or service disruptions. Organizations using BILGER versions prior to 2.4.6 should update to the latest version to protect their communications and operational integrity.

## Quick answers

**Is CVE-2025-5519 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-5519 being exploited in the wild.

**How severe is CVE-2025-5519?** Medium severity, with a CVSS score of 6.5, published 16 September 2025.

**Which products and versions are affected?** ArgusTech BILGER before 2.4.6.

**Is there a fix for CVE-2025-5519?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2025-5519 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2025-5519?** Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A vulnerability classified as CWE-201 (Insertion of Sensitive Information Into Sent Data) exists in ArgusTech BILGER before version 2.4.6. The flaw allows an attacker to choose or manipulate message identifiers, which results in the inclusion of sensitive information within data sent over the network. The attack can be executed remotely without authentication or user interaction. Successful exploitation may lead to a loss of confidentiality and a partial impact on service availability. The issue is addressed in version 2.4.6.

## Affected products

- ArgusTech BILGER before 2.4.6

## Timeline

- 2025-09-16: advisory: Initial publication of the vulnerability advisory
- 2026-06-05: other: Advisory record modified

## References

- [https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-25-0250](https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-25-0250)
- [https://www.usom.gov.tr/bildirim/tr-25-0250](https://www.usom.gov.tr/bildirim/tr-25-0250)