PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-7300 RTI CVE debrief

A high-severity buffer overflow vulnerability was discovered in RTI Connext Professional, which could allow an attacker to execute arbitrary code. The vulnerability, tracked as CVE-2026-7300, has a CVSS score of 8.8 and is classified as a 'Classic Buffer Overflow' vulnerability. This issue affects Connext Professional installations, particularly those using Web Integration Service. Security teams should review the official CVE record and NVD details for further information.

Vendor
RTI
Product
Connext Professional
CVSS
HIGH 8.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-17
Original CVE updated
2026-06-17
Advisory published
2026-06-17
Advisory updated
2026-06-17

Who should care

Security teams and administrators responsible for RTI Connext Professional installations should be aware of this vulnerability and take immediate action to mitigate the risk. This includes reviewing the official CVE record, assessing the impact on their environments, and applying necessary patches or updates.

Technical summary

CVE-2026-7300 is a buffer copy without checking size of input vulnerability in RTI Connext Professional (Web Integration Service). The vulnerability has a CVSS score of 8.8 and is classified as a 'Classic Buffer Overflow' vulnerability. This issue affects Connext Professional versions from 7.4.0 before 7.*, from 7.0.0 before 7.3.1.3, and from 6.1.2 before 6.1.*. Security teams should assess the impact on their environments and apply necessary patches or updates. The CVE record and NVD details provide further information for affected installations, particularly those using Web Integration Service.

Defensive priority

High

Recommended defensive actions

  • Apply the vendor-provided patches or updates to vulnerable RTI Connext Professional installations.
  • Restrict access to the affected service to minimize the attack surface.
  • Monitor for suspicious activity and implement additional security controls as needed.
  • Review compensating controls for exposed systems while remediation is scheduled and verified.
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review.
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented.
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Evidence notes

The CVE record was published on 2026-06-17T18:18:05.753Z and was last modified on 2026-06-17T20:20:10.920Z. The NVD entry is currently 'Awaiting Analysis'. The vulnerability affects Connext Professional versions from 7.4.0 before 7.*, from 7.0.0 before 7.3.1.3, and from 6.1.2 before 6.1.*. Evidence is limited to CVE and NVD information.

Official resources

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-06-17T18:18:05.753Z and has not been modified since then. The NVD entry is currently Awaiting Analysis.