Read the docs
TI-2026-84262 Aliases CVE-2026-121507GHSA-69rx-hm2w-fmjq

Double free in µD3TN BPv6 fragmenter enables denial of service

Priority LOW 27CWE-415Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-415 and the CVSS impact.

Summary

D3TN GmbH µD3TN from 0 before 0.15.2 is affected. Its BPv6 fragmenter frees memory twice during block duplication when an allocation fails (CWE-415). An unauthenticated remote attacker can cause a denial of service.

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

Description from the CNA

Double Free in µD3TN BPv6 Fragmenter Block Duplication allows Unauthenticated Remote Attacker to Cause DoS on Allocation Failure

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00377 31st 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

Update µD3TN to version 0.15.2, which fixes the flaw.

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-2026-121507
  2. 2026-11-03 CISA SSVC decision points changed
  3. 2026-11-03 Priority changed: MEDIUM → LOW
  4. 2026-11-03 Alias added: GHSA-69rx-hm2w-fmjq

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