9.8
CVE-2026-20797
- EPSS 0.78%
- Veröffentlicht 27.02.2026 01:03:18
- Zuletzt bearbeitet 10.05.2026 14:16:46
- Quelle ics-cert@hq.dhs.gov
- CVE-Watchlists
- Unerledigt
LoginCopeland XWEB and XWEB Pro Stack-based Buffer Overflow
A stack based buffer overflow exists in an API route of XWEB Pro version 1.12.1 and prior, enabling unauthenticated attackers to cause stack corruption and a termination of the program.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Copeland ≫ Xweb 300d Pro Firmware Version <= 1.12.1
Copeland ≫ Xweb 500d Pro Firmware Version <= 1.12.1
Copeland ≫ Xweb 500b Pro Firmware Version <= 1.12.1
| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.78% | 0.51 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| nvd@nist.gov | 9.8 | 3.9 | 5.9 |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
|
| ics-cert@hq.dhs.gov | 4.3 | 2.8 | 1.4 |
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
|
CWE-121 Stack-based Buffer Overflow
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
CWE-787 Out-of-bounds Write
The product writes data past the end, or before the beginning, of the intended buffer.
https://webapps.copeland.com/Dixell/Pages/SystemSoftwareUpdate
https://www.cisa.gov/news-events/ics-advisories/icsa-26-057-10
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-057-10.json