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Out-of-bounds read in EPICS Base network message handling

Priority MEDIUM 43CWE-843Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-843 and the CVSS impact.

Summary

EPICS Base releases through 7.0.10 are affected. Insufficient validation of element or length values in a network message lets the application read beyond the bounds of an allocated buffer (CWE-843). An unauthenticated remote attacker can cause a denial of service and may expose adjacent memory contents.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Description from the CNA

In EPICS Base release 7.0.10 and prior, an insufficient validation of element or length values in a network message can cause the application to read beyond the bounds of an allocated buffer. This may lead to denial of service and could expose adjacent memory contents.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00298 22nd 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
Yes
Technical impact
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
The EPICS CommunityEPICS Baseup to 7.0.10—No fix listedCNA

Remediation

The sources list no fixed version for EPICS Base.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Timeline

  1. 2026-10-27 Threatist record created from CVE-2026-114598
  2. 2026-10-27 Alias added: GHSA-f386-8q3g-8c7r
  3. 2026-10-28 Priority changed: MEDIUM → LOW
  4. 2026-11-04 CISA SSVC decision points changed
  5. 2026-11-04 Priority changed: LOW → MEDIUM

References

  • TI-2026-81435 Integer overflow in EPICS Base request processing corrupts memory CVSS 4.0CRITICAL 9.3
  • TI-2026-81436 Integer overflow in EPICS Base leads to out-of-bounds memory write CVSS 4.0HIGH 8.8
  • TI-2026-81437 Out-of-bounds read in EPICS Base network message handling CVSS 4.0HIGH 8.7

Sources