Indoor Connect 8855: Improper Filtering of Special Elements
CVE-2025-27260 is a high-severity improper filtering of special elements vulnerability in Indoor Connect 8855 from Ericsson, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. The record lists version 2025.Q3 as the first without the flaw, so updating Indoor Connect 8855 to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.22% 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 Indoor Connect 8855 to 2025.Q3 or a later version.
- Update Indoor Connect 8855 Firmware to 2025.q3 or a later version.
- Read the advisory on ericsson.com for workarounds and exact fixed builds.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Ericsson | Indoor Connect 8855 | before 2025.Q3 | 2025.Q3 |
| Ericsson | Indoor Connect 8855 Firmware | before 2025.q3 | 2025.q3 |
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
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- NoneNo data is disclosed.
- Integrity
- HighData or code can be modified at will.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 4.0 | 7.2 | High | CNA |
| CVSS 3.1 | 7.5 | High | NVD |
Official description
Ericsson Indoor Connect 8855 versions prior to 2025.Q3 contains an Improper Filtering of Special Elements vulnerability which, if exploited, can lead to unauthorized modification of certain information
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Filtering of Special Elements
The product receives data from an upstream component, but it does not filter or incorrectly filters special elements before sending it to a downstream component.
More Improper Filtering of Special Elements vulnerabilities (CWE-790)
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
Advisories
Other vulnerabilities in Indoor Connect 8855
- 7.5 High severity
- 8.8 High severity
- 9.8 Critical severity
- 9.8 Critical severity
Recent Improper Filtering of Special Elements vulnerabilities
- 8.8 High severity
- 9.8 Critical severity
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