CVE-2026-18457
📛 CVE Title
Heap-based Buffer Overflow vulnerability in RTI Connext Professional (Core Libraries) allows Overflow Buffers.
Description
Heap-based Buffer Overflow vulnerability in RTI Connext Professional (Core Libraries) allows Overflow Buffers. This issue affects Connext Professional: from 7.4.0 before 7.7.0.1, from 7.0.0 before 7.3.1.6, from 6.1.0 before 6.1.*, from 6.0.0 before 6.0.*, from 5.3.0 before 5.3.*, from 5.2.3 before 5.2.*.
Overview
- State
- PUBLISHED
- Assigner (CNA)
- RTI
- CVSS severity
- HIGH
- CVSS score
- 8.3 / 10
- CVSS vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N- Effective score
- 8.3 / 10 HIGH source: CNA overview
- CWE(s)
-
CWE-122 - Reserved
- 2026-07-31
- Published
- 2026-09-22 17:50 UTC
- Last updated
- 2026-09-22 18:48 UTC
- Source
- https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/18xxx/CVE-2026-18457.json
- Linked Threat
- CVE-2026-18457 — Heap-based Buffer Overflow vulnerability in RTI Connext Professional (Core Libraries) allows Overflow Buffers.
NVD triage scoring NVD CVE 2.0
Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.
- NVD published
- 2026-09-22 18:17:11 UTC
- NVD last modified
- 2026-09-22 19:37:36 UTC
NVD / KEV / EPSS data refreshed 2026-09-23 01:42 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.
European Union Vulnerability Database ENISA EUVD
ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.
- EUVD ID
-
EUVD-2026-84612 - Assigner
- RTI
- Published
- Sep 22, 2026, 5:50:17 PM
- Updated
- Sep 22, 2026, 6:48:54 PM
- EUVD base score (CVSS 4.0)
-
8.3 / 10
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N - EUVD-reported EPSS
- 0.0000
- Vendors
- RTI
- Products
-
Connext Professional (7.4.0 <7.7.0.1)Connext Professional (6.1.0 <6.1.*)Connext Professional (5.2.3 <5.2.*)Connext Professional (7.0.0 <7.3.1.6)Connext Professional (5.3.0 <5.3.*)Connext Professional (6.0.0 <6.0.*)
- Aliases
-
GHSA-rqhh-2v8g-vvqw
ENISA description: Heap-based Buffer Overflow vulnerability in RTI Connext Professional (Core Libraries) allows Overflow Buffers. This issue affects Connext Professional: from 7.4.0 before 7.7.0.1, from 7.0.0 before 7.3.1.6, from 6.1.0 before 6.1.*, from 6.0.0 before 6.0.*, from 5.3.0 before 5.3.*, from 5.2.3 before 5.2.*.
EUVD references (1)
Affected products (1)
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| RTI | Connext Professional |
7.4.0 (affected),
7.0.0 (affected),
6.1.0 (affected),
6.0.0 (affected),
5.3.0 (affected),
5.2.3 (affected)
|
— |
Vendor references (1)
References embedded in the original CVE record by the assigning CNA.
Web references (0)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
No web references attached yet.
NVD-tagged references (1)
Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.
- https://www.rti.com/vulnerabilities/#cve-2026-18457 3f572a00-62e2-4423-959a-7ea25eff1638
Remediations (10)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
web:arcticwolf.com
Learn how to protect N-able N-central from active exploitation of CVE - 2026 -18556 and CVE - 2026 -18577 with patching, threat hunting, and mitigation guidance.
2026-09-23 15:19 UTC -
web:fixitphill.com
Patch Microsoft Exchange CVE - 2026 -42897 with June 2026 security updates, keep EEMS mitigations during rollout, and verify OWA and mail flow.
2026-09-23 15:19 UTC -
web:msrc.microsoft.com
The Microsoft Security Response Center (MSRC) investigates all reports of security vulnerabilities affecting Microsoft products and services, and provides the information here as part of the ongoing effort to help you manage security risks and help keep your systems protected.
2026-09-23 15:19 UTC -
web:senserva.com
Every Microsoft security patch (KB) and the CVEs it fixes, with severity, CVSS, and CISA KEV status. Cross-linked to the CVE reference.
2026-09-23 15:19 UTC -
web:status.n-able.com
Download CMMC Download (For CMMC Subscribed Accounts) Build Number : 2026.3.1.10 Last Updated: Aug, 6th 2026 This release supersedes N-central 2026.3 Hotfix 1 (build 2026.3.1.7). To find out everything contained in the 2026.3 release, click this link for the full 2026.3 release notes. As our investigation into the recent N-central security vulnerability ( CVE - 2026 -18577) continues, we are ...
2026-09-23 15:19 UTC -
web:support.microsoft.com
This update for Windows 11, version 25H2 and 24H2 (KB5084597) incudes security improvements. To learn more about differences between security updates, optional non-security preview updates, out-of-band (OOB) updates, and continuous innovation, see Windows monthly updates explained. For information on Windows update terminology, see the different types of Windows software updates. To view the ...
2026-09-23 15:19 UTC -
web:tech-insider.org
A China-linked hacking crew tracked as Storm-1175 has walked away from Medusa, the ransomware-as-a-service strain it rode for years, and started deploying a new, privately built encryptor called StormEncryptor. The switch surfaced on August 2, 2026 , the same day a critical authentication-bypass flaw in N-able's N-central remote monitoring and management console, tracked as CVE - 2026 -18577 ...
2026-09-23 15:19 UTC -
web:windowsforum.com
Microsoft's Fastest Fix Is a Mitigation , Not a Patch The important detail in Microsoft's May 14 notice is that there is no permanent Exchange security update available yet for CVE - 2026 -42897. Microsoft says it is working on one and will release it later for affected supported paths, but today's defensive action is mitigation .
2026-09-23 15:19 UTC -
web:www.rescana.com
Executive Summary In July and August 2026 , a critical security incident involving the N-able N-central remote monitoring and management (RMM) platform was disclosed, with attackers successfully compromising servers after an initial vendor fix proved incomplete. The vulnerabilities, tracked as CVE - 2026 -18556 and the subsequent CVE - 2026 -18577, enabled unauthenticated remote attackers to gain ...
2026-09-23 15:19 UTC -
web:zecurit.com
Get the complete breakdown of Microsoft's September 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .
2026-09-23 15:19 UTC
AI Forensic Analysis
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Raw JSON
The full cvelistV5 record. Download as CVE-2026-18457.json.
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