CVE-2026-8849

HIGHPre-NVD 7.77.7—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.7 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 68% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 4 sources updated this week
7.7EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.7Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Use After Free vulnerability in RTI Connext Professional (Security Plugins) allows File Manipulation. This issue affects Connext Professional: from 7.6.0 before 7.7.0.1.

CVSS v3
7.7
EG Score
7.7(medium)
EG Risk
35(Track)
EG Risk 35/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity77% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
32%
KEV
Not listed

Published

September 22, 2026

Last Modified

September 23, 2026

Advisory Details (1)

Auto-updated Sep 22, 2026
No patch confirmed yet.
generic

RTI Connext Security Bulletins and Advisories (last updated on 2026-09-22)

https://www.rti.com/vulnerabilities/#cve-2026-8849

Vendor Advisories for CVE-2026-8849(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 15× in last 7d / 15× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-24 02:20 UTCEG score recompute
  2. 2026-09-24 02:20 UTCGHSA enrichment
  3. 2026-09-23 17:54 UTCEPSS rescore
  4. 2026-09-23 15:30 UTCGHSA enrichment
  5. 2026-09-23 04:41 UTCEG score recompute
  6. 2026-09-23 04:41 UTCGHSA enrichment
  7. 2026-09-23 04:03 UTCEG score recompute
  8. 2026-09-23 04:03 UTCGHSA enrichment
  9. 2026-09-22 19:37 UTCEG score recompute
  10. 2026-09-22 19:37 UTCGHSA enrichment
  11. 2026-09-22 18:59 UTCEG score recompute
  12. 2026-09-22 18:59 UTCGHSA enrichment
  13. 2026-09-22 18:31 UTCEG score recompute
  14. 2026-09-22 17:53 UTCEG score recompute
  15. 2026-09-22 17:53 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-8849?
CVE-2026-8849 is a high vulnerability published on September 22, 2026. Use After Free vulnerability in RTI Connext Professional (Security Plugins) allows File Manipulation. This issue affects Connext Professional: from 7.6.0 before 7.7.0.1.
When was CVE-2026-8849 disclosed?
CVE-2026-8849 was first published in the National Vulnerability Database on September 22, 2026, with the most recent update on September 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-8849 actively exploited?
CVE-2026-8849 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 67.9% of all scored CVEs.
What is the CVSS score of CVE-2026-8849?
CVE-2026-8849 has a CVSS v3 base score of 7.7 (NVD).
How do I remediate CVE-2026-8849?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-8849, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-8849

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