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TI-2026-76756 Aliases CVE-2026-113469GHSA-4382-r6qg-2rwv

Stormshield Network Security accepts unsigned dynamic data updates

Priority LOW 34CWE-287Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-287.

Summary

Stormshield Network Security from 4.3.0 through 4.3.44, from 4.8.0 through 4.8.19, from 5.0.0 through 5.0.9 and from 5.1.0 through 5.1.3 are affected. A logic error in the signature verification routine accepts dynamic data files that lack a valid signature during the Autoupdate routine (CWE-287). An unauthenticated attacker on an adjacent network can cause high impact to confidentiality, integrity and availability.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

A failure has been identified in the SNS during dynamic data files signature check. A logic error in the signature verification routine resulting in acceptance of unauthenticated dynamic data update during Autoupdate routine.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00196 9th percentileScored 2026-11-07
Fix Fixed Stormshield Network Security (Stormshield): 4.8.20 LTSB, 5.0.10, 5.1.4 EA

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
StormshieldStormshield Network Security4.3.0 – 4.3.44; 4.8.0 – 4.8.19; 5.0.0 – 5.0.9; 5.1.0 – 5.1.34.8.20 LTSB, 5.0.10, 5.1.4 EAPatch availableCNA
  • Stormshield Network Security VendorStormshield Affected 4.3.0 – 4.3.44; 4.8.0 – 4.8.19; 5.0.0 – 5.0.9; 5.1.0 – 5.1.3 Fixed in 4.8.20 LTSB, 5.0.10, 5.1.4 EA Patch available CNA

Remediation

Update to Stormshield Network Security 4.8.20 LTSB, 5.0.10 or 5.1.4 EA, which fix the flaw.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA Stormshield Network Security (Stormshield) Fixed in 4.8.20 LTSB, 5.0.10, 5.1.4 EA

Timeline

  1. 2026-10-20 Threatist record created from CVE-2026-113469
  2. 2026-10-20 Alias added: GHSA-4382-r6qg-2rwv
  3. 2026-10-20 CISA SSVC decision points changed
  4. 2026-10-20 Priority changed: MEDIUM → LOW

References

Other 1

  • TI-2022-17498 zlib through 1.2.12 has a heap-based buffer over-read or buffer overflow in inflate in… CVSS 3.1CRITICAL 9.8
  • TI-2023-00271 X.400 address type confusion in X.509 GeneralName CVSS 3.1HIGH 7.4
  • TI-2022-13924 The llhttp parser <v14.20.1, <v16.17.1 and <v18.9.1 in the http module in Node.js does… CVSS 3.1MEDIUM 6.5
  • TI-2023-06741 Buffer overflow in Cisco Secure Web Appliance CVSS 3.1CRITICAL 9.8
  • TI-2022-13925 The llhttp parser <v14.20.1, <v16.17.1 and <v18.9.1 in the http module in Node.js does… CVSS 3.1MEDIUM 6.5
  • TI-2022-04067 Double free after calling PEM_read_bio_ex CVSS 3.1HIGH 7.5
See all 68 →

Sources

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