How severe is CVE-2025-1253?

CVE-2025-1253 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-1253 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-1253?

CVE-2025-1253 affects Rti Connext Professional. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-1253?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-1253 have an EU (EUVD) identifier?

Yes. CVE-2025-1253 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-13972.

When was CVE-2025-1253 published?

CVE-2025-1253 was published on 2025-05-08 and last updated on 2026-06-17.

CVE-2025-1253

CVE-2025-1253 is a high-severity vulnerability in Rti Connext Professional with a CVSS 3.x base score of 7.8. 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: High (CVSS 3.x base score 7.8)
CVSS v4: 6.9
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-13972
Weakness: CWE-120
Affected product: Rti Connext Professional
Published: 2025-05-08
Last modified: 2026-06-17

Description

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow'), Stack-based Buffer Overflow vulnerability in RTI Connext Professional (Core Libraries) allows Overflow Variables and Tags.This issue affects Connext Professional: from 7.4.0 before 7.5.0, from 7.0.0 before 7.3.0.7, from 6.1.0 before 6.1.2.23, from 6.0.0 before 6.0.1.42, from 5.3.0 before 5.3.*, from 4.5c before 5.2.*.

Frequently asked questions

What is CVE-2025-1253?: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow'), Stack-based Buffer Overflow vulnerability in RTI Connext Professional (Core Libraries) allows Overflow Variables and Tags.This issue affects Connext Professional: from 7.4.0 before 7.5.0, from 7.0.0 before 7.3.0.7, from 6.1.0 before 6.1.2.23, from 6.0.0 before 6.0.1.42, from 5.3.0 before 5.3.*, from 4.5c before 5.2.*.
How severe is CVE-2025-1253?: CVE-2025-1253 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-1253 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-1253?: CVE-2025-1253 affects Rti Connext Professional. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-1253?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-1253 have an EU (EUVD) identifier?: Yes. CVE-2025-1253 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-13972.
When was CVE-2025-1253 published?: CVE-2025-1253 was published on 2025-05-08 and last updated on 2026-06-17.

References

https://www.rti.com/vulnerabilities/#cve-2025-1253

Affected products (1)

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

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