CVE-2026-11815Network attack vector

Code execution via intercepted serialized objects

Published Jun 10, 2026 · Updated Jun 10, 2026

Insecure deserialization in Broadcom Layer7 API Gateway Policy Manager 11.2.1 allows man-in-the-middle attackers to execute code. Policy Manager deserializes arbitrary objects from attacker-modified client-to-gateway traffic; the published record does not identify the exact routine or serialization format. Exploitation requires low-privileged Policy Manager access and a traffic-interception position, and successful exploitation breaks security expectations or executes code.

CVSS severity5.3
Medium
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insecure deserialization in Broadcom Layer7 API Gateway Policy Manager 11.2.1 allows man-in-the-middle attackers to execute code. Policy Manager deserializes arbitrary objects from attacker-modified client-to-gateway traffic; the published record does not identify the exact routine or serialization format. Exploitation requires low-privileged Policy Manager access and a traffic-interception position, and successful exploitation breaks security expectations or executes code.

The record

CVE
CVE-2026-11815
Published
Jun 10, 2026
Updated
Jun 10, 2026
Vendor
Brocade Communications Systems
Product
Layer7 API Gateway
Classifications
CWE-502, T1557
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=11.2.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Brocade Communications Systems · Layer7 API Gatewayversion=11.2.1

Published CVSS scores

5.3Broadcom CNACVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:H/SI:L/SA:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
T1557Adversary-in-the-Middle

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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