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TI-2023-00927 Aliases CVE-2023-0977GHSA-m928-3f5w-85qx

Buffer overflow in Trellix Agent

Priority LOW 33CWE-120Published · Updated

Key facts

Attack vector
Local
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.

Summary

A heap-based overflow vulnerability in Trellix Agent (Windows and Linux) version 5.7.8 and earlier, allows a remote user to alter the page heap in the macmnsvc process memory block resulting in the service becoming unavailable.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00638 50th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
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
TrellixTrellix Agent5.7.8 – 5.7.8 —No fix listedCNA
  • Trellix Agent VendorTrellix Affected 5.7.8 – 5.7.8 Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:trellix:agent:*:*:*:*:*:*:*:*up to 5.7.8VulnerableTrellix
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*not specified by NVDRunning onLinux
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*not specified by NVDRunning onMicrosoft
  • cpe:2.3:a:trellix:agent:*:*:*:*:*:*:*:* Versions up to 5.7.8 Vulnerable ·Trellix
  • cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Linux
  • cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-0977
  2. 2026-10-03 Alias added: GHSA-m928-3f5w-85qx
  3. 2026-10-25 EPSS moved to the 50th–90th percentile

References

Advisory 1

  • TI-2023-00925 A vulnerability exists in Trellix Agent for Windows version 5.7.8 and earlier, that… CVSS 3.1HIGH 8.2
  • TI-2023-01312 Out-of-bounds write in Trellix Agent CVSS 3.1HIGH 8.1
  • TI-2024-00193 Buffer overflow in Trellix Agent CVSS 3.1HIGH 8.2
  • TI-2023-00926 Uncontrolled search path in Trellix Agent CVSS 3.1HIGH 7.8
  • TI-2022-03537 Uncontrolled search path in Trellix Agent CVSS 3.1MEDIUM 6.7

Sources

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