VulnerabilityAnalyzed
CVE-2026-25085
A vulnerability exists in Copeland XWEB Pro version 1.12.1 and prior, in which an unexpected return value from the authentication routine is later on processed as a legitimate value, resulting in an authentication bypass.
CRITICAL 9.8EPSS 0.49%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.49%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A vulnerability exists in Copeland XWEB Pro version 1.12.1 and prior, in which an unexpected return value from the authentication routine is later on processed as a legitimate value, resulting in an authentication bypass.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.49% probability · 41th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-394
- Affected
- copeland/xweb 500b pro firmware · copeland/xweb 300d pro firmware · copeland/xweb 500d pro firmware
- Source
- ics-cert@hq.dhs.gov
References
- https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-057-10.jsonThird Party Advisory
- https://webapps.copeland.com/Dixell/Pages/SystemSoftwareUpdateProduct
- https://www.cisa.gov/news-events/ics-advisories/icsa-26-057-10Third Party Advisory, US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.