Is CVE-2026-113469 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-113469 being exploited in the wild.

How severe is CVE-2026-113469?

High severity, with a CVSS score of 7.5, published 20 October 2026.

Which products and versions are affected?

Stormshield Network Security 4.3.0 to 4.3.44, 4.8.0 to 4.8.19, 5.0.0 to 5.0.9, 5.1.0 to 5.1.3.

How is CVE-2026-113469 attacked?

It is attacked from the adjacent network, in a network appliance.

Am I affected by CVE-2026-113469?

Check whether you run Stormshield Network Security at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-113469: Stormshield Network Security improper signature verification in dynamic data files

CVE-2026-113469 · Severity: high · CVSS 7.5 · Published 2026-10-20

Stormshield Network Security (SNS), a network security appliance, contains a flaw in its signature verification for dynamic data updates. An attacker on the same network segment could inject malicious unsigned updates, potentially compromising the device's integrity, confidentiality, and availability. The vulnerability affects the auto-update mechanism and requires adjacent network access to exploit.

Technologies: Stormshield Network Security. Vendors: Stormshield.

Quick answers

Is CVE-2026-113469 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-113469 being exploited in the wild.
How severe is CVE-2026-113469?: High severity, with a CVSS score of 7.5, published 20 October 2026.
Which products and versions are affected?: Stormshield Network Security 4.3.0 to 4.3.44, 4.8.0 to 4.8.19, 5.0.0 to 5.0.9, 5.1.0 to 5.1.3.
Is there a fix for CVE-2026-113469?: Yes: fixed in SNS 5.1.4 EA, 5.0.10, 4.8.20 LTSB. Until then: Use only official Stormshield update servers or verified SMC mirror servers with HTTPS enabled. If using custom update servers, enable HTTPS and verify SHA-256 hashes of files match those from official Stormshield servers. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-113469 attacked?: It is attacked from the adjacent network, in a network appliance.
Am I affected by CVE-2026-113469?: Check whether you run Stormshield Network Security at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Fixed in: SNS 5.1.4 EA, 5.0.10, 4.8.20 LTSB

Use only official Stormshield update servers or verified SMC mirror servers with HTTPS enabled. If using custom update servers, enable HTTPS and verify SHA-256 hashes of files match those from official Stormshield servers.

Technical details

A logic error in the signature verification routine causes the SNS auto-update mechanism to accept unauthenticated dynamic data files during the update process. The vulnerability requires adjacent network proximity to exploit (AV:A) and has high attack complexity (AC:H), but results in high impact across confidentiality, integrity, and availability. An attacker could deliver malicious unsigned updates to compromise the device.

Affected products

Stormshield Network Security 4.3.0 to 4.3.44, 4.8.0 to 4.8.19, 5.0.0 to 5.0.9, 5.1.0 to 5.1.3

Timeline

2026-10-16: disclosed: Initial advisory release
2026-08-03: other: Vulnerability discovered

References

https://advisories.stormshield.eu/2026-032/

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