Acropolis: Improper Restriction of Excessive Authentication Attempts
CVE-2025-35041 is a high-severity improper restriction of excessive authentication attempts vulnerability in Acropolis from Airship AI, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, without any action from a user. The record lists versions 10.2.35, 11.0.21, 11.1.9 as the first without the flaw, so updating Acropolis to one of those releases or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.33% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Acropolis to 10.2.35 or 11.0.21 or 11.1.9, whichever matches your release line, or a later version.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Airship AI | Acropolis | before 10.2.35; before 11.0.21; before 11.1.9 | 10.2.35, 11.0.21, 11.1.9 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- HighSuccess depends on conditions outside the attacker's control.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by CNA.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 4.0 | 7.7 | High | CNA |
| CVSS 3.1 | 7.5 | High | CNA |
Official description
Airship AI Acropolis allows unlimited MFA attempts for 15 minutes after a user has logged in with valid credentials. A remote attacker with valid credentials could brute-force the 6-digit MFA code. Fixed in 10.2.35, 11.0.21, and 11.1.9.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Restriction of Excessive Authentication Attempts
The product does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame.
How developers prevent this class of flaw
- Common protection mechanisms include: Disconnecting the user after a small number of failed attempts Implementing a timeout Locking out a targeted account Requiring a computational task on the user's part.
- Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid. Consider using libraries with authentication capabilities such as OpenSSL or the ESAPI Authenticator.
More Improper Restriction of Excessive Authentication Attempts vulnerabilities (CWE-307)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Third-party and government advisories
- raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025/va-25-265-01.jsonThird Party Advisory
- cve.org/CVERecord?id=CVE-2025-35041Third Party Advisory
Other vulnerabilities in Acropolis
- 9.8 Critical severity
Recent Improper Restriction of Excessive Authentication Attempts vulnerabilities
- 7.7 High severity
- 8.6 High severity
- 8.6 High severity
- 8.6 High severity
- 8.6 High severity
- 9.8 Critical severity
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