Connext Professional: Buffer Over-read
CVE-2025-4582 is a high-severity buffer over-read vulnerability in Connext Professional from RTI, with a CVSS 3.1 base score of 7.1 out of 10. It can be exploited with local access to the system by an attacker with a low-privileged account, without any action from a user. The record lists versions 7.6.0, 7.3.0.8, 6.1.2.26 as the first without the flaw, so updating Connext Professional to one of those releases or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.14% 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 Connext Professional to 7.6.0 or 7.3.0.8 or 6.1.2.26 or 6.0.1.43, whichever matches your release line, or a later version.
- Read the advisory on rti.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| RTI | Connext Professional | 7.4.0 up to, but not including, 7.6.0; 7.0.0 up to, but not including, 7.3.0.8; 6.1.0 up to, but not including, 6.1.2.26; 6.0.0 up to, but not including, 6.0.1.43; 5.3.0 up to, but not including, 5.3.*; 5.2.0 up to, but not including, 5.2.*; 4.4a up to, but not including, 5.1.* | 7.6.0, 7.3.0.8, 6.1.2.26, 6.0.1.43, 5.3.*, 5.2.* |
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
- LocalThe attacker needs local access or must trick a user into running something.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- 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
- NoneNothing can be modified.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 4.0 | 4.8 | Medium | CNA |
| CVSS 3.1 | 7.1 | High | NVD |
Official description
Buffer Over-read, Off-by-one Error vulnerability in RTI Connext Professional (Core Libraries) allows File Manipulation, Overread Buffers. This issue affects Connext Professional: from 7.4.0 before 7.6.0, from 7.0.0 before 7.3.0.8, from 6.1.0 before 6.1.2.26, from 6.0.0 before 6.0.1.43, from 5.3.0 before 5.3.*, from 5.2.0 before 5.2.*, from 4.4a before 5.1.*.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Buffer Over-read
The product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Advisories
- rti.com/vulnerabilities/#cve-2025-4582Mitigation
Other vulnerabilities in Connext Professional
- 7.7 High severity
- 10.0 Critical severity
- 7.3 High severity
- 9.2 Critical severity
- 8.7 High severity
- 8.3 High severity
Recent Buffer Over-read vulnerabilities
- 8.8 High severity
- 7.5 High severity
- 7.5 High severity
- 7.5 High severity
- 7.6 High severity
- 7.5 High severity
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