Quick answers
- Is CVE-2026-20910 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-20910 being exploited in the wild.
- How severe is CVE-2026-20910?
- High severity, with a CVSS score of 8, published 27 February 2026.
- Which products and versions are affected?
- Copeland Xweb 300d Pro <=1.12.1; Copeland Xweb 500b Pro <=1.12.1; Copeland Xweb 500d Pro <=1.12.1.
- Is there a fix for CVE-2026-20910?
- 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-2026-20910 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-20910?
- Check whether you run Copeland Xweb 300d Pro, Copeland Xweb 300d Pro Firmware, Copeland Xweb 500b Pro or one of the others listed 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
An OS command injection vulnerability (CWE-78) exists in the firmware update functionality of Copeland XWEB Pro. The flaw is located in the 'devices' field of the firmware update action, where malicious input is not properly neutralized before being executed by the underlying operating system. An authenticated attacker with network access can exploit this to achieve remote code execution (RCE) with the privileges of the application. While some assessments suggest a high complexity (AC:H), NVD's analysis indicates a lower complexity (AC:L) for authenticated users. Copeland has released patches and recommends updating to the latest version via their software update portal or the device's internal update menu.
Affected products
- Copeland XWEB 300D PRO <=1.12.1
- Copeland XWEB 500D PRO <=1.12.1
- Copeland XWEB 500B PRO <=1.12.1
Timeline
- 2026-02-26: advisory: CISA ICSA-26-057-10 published
- 2026-02-27: disclosed: NVD publication date
- 2026-06-04: other: CVE record modified by ICS-CERT