CVE-2025-53187: ABB ASPECT · Authentication Bypass Using an Alternate Path or Channel
Affects ABB ASPECTSource CVE Database V5
Not known to be exploited · CVSS 9.8 Critical.
Data as of 26 Oct 2026, 08:30 UTC
- EPSS
- 0.6% chance of exploitation in 30 days – higher than 49% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 11 Aug 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| ABB ASPECT | Affected
| Fixed in– |
AI-suggested
1. Immediate upgrade to ABB ASPECT firmware version 3.08.04-s01 or later, where this vulnerability has been addressed, is the most effective mitigation. 2. Until patching is possible, restrict network access to ASPECT devices by implementing strict network segmentation and firewall rules to limit exposure to untrusted networks. 3. Monitor network traffic for unusual activity targeting ASPECT devices, especially attempts to access debugging or alternate code paths. 4. Employ intrusion detection systems (IDS) and endpoint detection and response (EDR) solutions tailored for OT environments to detect anomalous behaviors indicative of exploitation attempts. 5. Conduct thorough audits of all ASPECT devices to ensure no unauthorized configuration changes have been made, particularly changes to system time or file access patterns. 6. Collaborate with ABB support to obtain any interim mitigation guidance or patches and verify firmware authenticity before deployment. 7. Implement strict change management and access control policies around OT devices to minimize risk of unauthorized modifications.
Description
Due to an issue in configuration, code that was intended for debugging purposes was included in the market release of the ASPECT FW allowing an attacker to bypass authentication. This vulnerability may allow an attacker to change the system time, access files, and make function calls without prior authentication. This issue affects all versions of ASPECT prior to 3.08.04-s01