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  4. CVE 2026 108103 open5gs through 280 heap out of bounds read via
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Back to active CVEs
Medium · CVSS 6.9CVE-2026-108103

Open5GS through 2.8.0 Heap Out-of-Bounds Read via PFCP Dropped DL Traffic Threshold IECVE-2026-108103

Answer in brief

CVE-2026-108103 records a Medium severity (CVSS 6.9) vulnerability in Open5GS through 2.8.0 Heap Out-of-Bounds Read via PFCP Dropped DL Traffic Threshold IE. The current sources do not mark it as known exploited. The current feed maps open5gs/open5gs (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 9, 2026Updated Oct 9, 2026Source checked Oct 9, 2026First seen by HOL Oct 9, 2026Material review Oct 9, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 6.9
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 6.9. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps open5gs/open5gs (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
open5gs/open5gsgeneric>=0 <=2.8.0Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for open5gs/open5gs.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Oct 9, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 9, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 9, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • Source referencevulncheck.com
Upstream source description

Open5GS through 2.8.0 contains a heap out-of-bounds read vulnerability in ogs_pfcp_parse_dropped_dl_traffic_threshold() that allows remote unauthenticated attackers to read past IE buffers via short IEs. Attackers can send PFCP Session Establishment or Modification Requests to the UPF on UDP port 8805 with DLPA and DLBY flags set, potentially crashing the UPF.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Open5GS through 2.8.0 Heap Out-of-Bounds Read via PFCP Volume Measurement IESame open5gs/open5gs package
  • Open5GS through 2.8.0 MME Reachable Assertion via GTPv1 SGSN Context RequestSame open5gs/open5gs package
  • Denial of Service via Eager Array Allocation During Deserialization in GuavaSame generic ecosystem
  • Reachable assertion in illumos bhyve REP string instruction emulation allows guest to panic hostSame generic ecosystem
  • KodExplorer < 4.55 Path Traversal via unzip_pre_name() ZIP ExtractionSame generic ecosystem
  • SmarterMail < Build 9777 SysAdmin Remote Code Execution via Volume MountSame generic ecosystem

Record context

Vulnerability class
Buffer Overflow
EPSS
Not reported
CWE IDs
CWE-125
Source
CVE List V5
Source checked
Oct 9, 2026
References
4 linked sources
Open source record