High severity · published Mar 13, 2026
CVE-2025-13777
Authentication Bypass due to Improper Session Validation
8.3
CVSS
0.2%
EPSS
No
On KEV
Description
Authentication bypass by capture-replay vulnerability in ABB AWIN GW100 rev.2, ABB AWIN GW120.This issue affects AWIN GW100 rev.2: 2.0-0, 2.0-1; AWIN GW120: 1.2-0, 1.2-1.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
Low
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 15% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AG
AWIN GW100 rev.2 · ABB
2.0-0; 2.0-1 · source: vendor
AG
AWIN GW120 · ABB
1.2-0; 1.2-1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-13777
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-13777
search.abb.com
https://search.abb.com/library/Download.aspx?DocumentID=4JNO000329&LanguageCode=en&DocumentPartId=&Action=Launch
More from AWIN GW100 rev.2
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CVE-2025-13779
Configuration Data Spill
6.5
CVE-2025-13778
Device Reboot Control