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TI-2026-23632 Aliases CVE-2026-30803GHSA-gjcv-h8fc-5668

Integer underflow in RTI Connext Micro

Priority MEDIUM 46CWE-191Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
High · None · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

Integer Underflow (Wrap or Wraparound) vulnerability in RTI Connext Micro (Core Libraries) allows Overread Buffers. This issue affects Connext Micro: from 4.0.0 before 4.3.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00296 22nd percentileScored 2026-11-07
Fix Fixed Connext Micro (RTI): 4.3.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
RTIConnext Micro4.0.0 to before 4.3.04.3.0Patch availableCNA
  • Connext Micro VendorRTI Affected 4.0.0 to before 4.3.0 Fixed in 4.3.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:rti:connext_micro:*:*:*:*:*:*:*:*4.0.0 to before 4.3.0VulnerableRTI
  • cpe:2.3:a:rti:connext_micro:*:*:*:*:*:*:*:* Versions 4.0.0 to before 4.3.0 Vulnerable ·RTI

Remediation

  • Fix · CNA Connext Micro (RTI) Fixed in 4.3.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-30803
  2. 2026-10-03 Alias added: GHSA-gjcv-h8fc-5668

References

Advisory 1

  • TI-2026-23631 Out-of-bounds read in RTI Connext Micro CVSS 4.0HIGH 8.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences