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TI-2026-84265 Aliases CVE-2026-121511GHSA-9v8h-435m-j59p

Out-of-bounds read in µD3TN fragmenter exposes memory and causes DoS

Priority LOW 30CWE-125Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

D3TN GmbH µD3TN versions before 0.15.2 are affected. A heap out-of-bounds read in the BPv6 and BPv7 fragmenter (CWE-125) lets the software read memory past the end of a heap buffer. A local attacker with low privileges can read memory and reliably cause a denial of service.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

Description from the CNA

Heap Out-of-Bounds Read in µD3TN BPv6/BPv7 Fragmenter allows Local Attacker to Read Memory and Reliably Cause DoS

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00144 3rd percentileScored 2026-11-07
Fix Fixed µD3TN (D3TN GmbH): 0.15.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
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
D3TN GmbHµD3TNbefore 0.15.20.15.2Patch availableCNA
  • µD3TN VendorD3TN GmbH Affected before 0.15.2 Fixed in 0.15.2 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:d3tn:ud3tn:*:*:*:*:*:*:*:*——D3TN GmbH
  • cpe:2.3:a:d3tn:ud3tn:*:*:*:*:*:*:*:* Versions — — ·D3TN GmbH

Remediation

Upgrade µD3TN to version 0.15.2 or later, which is the fixed version.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

  • Fix · CNA µD3TN (D3TN GmbH) Fixed in 0.15.2

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    D3TN µD3TN 0.15.2

    6 records Highest priority Priority LOW 6 LOW

    Other records, highest priority first

    • TI-2026-84267 Out-of-bounds write in µD3TN SPP parser allows remote denial of servicePriority LOW 39
    • TI-2026-84266 Memory leak in µD3TN BPv6 EID reference handling enables denial of servicePriority LOW 39
    • TI-2026-84264 Out-of-bounds write in µD3TN BPv6 record parser enables remote DoSPriority LOW 39
    Show all 6 records →

Timeline

  1. 2026-11-03 Threatist record created from CVE-2026-121511
  2. 2026-11-03 CISA SSVC decision points changed
  3. 2026-11-03 Priority changed: MEDIUM → LOW
  4. 2026-11-03 Alias added: GHSA-9v8h-435m-j59p

References

Other 1

  • TI-2024-11229 Double Free in µD3TN CVSS 3.1HIGH 7.5
  • TI-2026-63084 Integer Overflow or Wraparound in µD3TN CVSS 3.1HIGH 7.5
  • TI-2025-07488 NULL pointer dereference in D3TN GmbH µD3TN CVSS 3.1HIGH 7.5
  • TI-2026-84267 Out-of-bounds write in µD3TN SPP parser allows remote denial of service CVSS 3.1HIGH 7.5
  • TI-2026-84266 Memory leak in µD3TN BPv6 EID reference handling enables denial of service CVSS 3.1HIGH 7.5
  • TI-2026-84264 Out-of-bounds write in µD3TN BPv6 record parser enables remote DoS CVSS 3.1HIGH 7.5
See all 9 →

Sources

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