Quick answers
- Is CVE-2026-9157 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-9157 being exploited in the wild.
- How severe is CVE-2026-9157?
- High severity, with a CVSS score of 8.4, published 21 May 2026.
- Which products and versions are affected?
- Gmission Web Fax 3.0 to 3.1.
- Is there a fix for CVE-2026-9157?
- 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-2026-9157 attacked?
- It is attacked with local access, in a network appliance.
- Am I affected by CVE-2026-9157?
- Check whether you run Gmission Web Fax at an affected version. 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
Gmission Web Fax (versions 3.0 to 3.1) suffers from a vulnerability involving improper input validation (CWE-20) and unrestricted upload of files with dangerous types (CWE-434). The flaw allows an attacker to perform Remote Code Inclusion (RCI) by uploading malicious files to the server. While the CVSS vector (AV:L) suggests a local attack vector, the nature of the 'Web Fax' component typically implies a network-accessible interface; however, based strictly on the provided metadata, the attack is classified as local. Successful exploitation grants the attacker the ability to execute arbitrary code with the privileges of the web service, compromising confidentiality, integrity, and availability.
Affected products
- Gmission Web Fax 3.0 to 3.1
Timeline
- 2026-05-21: advisory: NVD publication date