How severe is CVE-2026-7300?

CVE-2026-7300 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-7300 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-7300?

CVE-2026-7300 affects Rti Connext Professional. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-7300?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-7300 have an EU (EUVD) identifier?

Yes. CVE-2026-7300 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-37753.

When was CVE-2026-7300 published?

CVE-2026-7300 was published on 2026-06-17 and last updated on 2026-07-08.

CVE-2026-7300

CVE-2026-7300 is a medium-severity vulnerability in Rti Connext Professional with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-120.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v4: 8.8
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-37753
Weakness: CWE-120
Affected product: Rti Connext Professional
Published: 2026-06-17
Last modified: 2026-07-08

Description

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in RTI Connext Professional (Web Integration Service) allows Filter Failure through Buffer Overflow.This issue affects Connext Professional: from 7.4.0 before 7.*, from 7.0.0 before 7.3.1.3, from 6.1.2 before 6.1.*.

Frequently asked questions

What is CVE-2026-7300?: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in RTI Connext Professional (Web Integration Service) allows Filter Failure through Buffer Overflow.This issue affects Connext Professional: from 7.4.0 before 7.*, from 7.0.0 before 7.3.1.3, from 6.1.2 before 6.1.*.
How severe is CVE-2026-7300?: CVE-2026-7300 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-7300 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-7300?: CVE-2026-7300 affects Rti Connext Professional. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-7300?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-7300 have an EU (EUVD) identifier?: Yes. CVE-2026-7300 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-37753.
When was CVE-2026-7300 published?: CVE-2026-7300 was published on 2026-06-17 and last updated on 2026-07-08.

References

https://www.rti.com/vulnerabilities/#cve-2026-7300

Affected products (1)

cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:*

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