CVE-2025-36134Network attack vector

Sensitive information disclosure via insecure SameSite cookie

Published Nov 25, 2025 · Updated Nov 25, 2025

Improper cookie handling in IBM Sterling B2B Integrator and Sterling File Gateway allows remote attackers to read sensitive information. Affected releases issue a sensitive cookie without a secure SameSite restriction, allowing browsers to attach it to cross-site requests. Exploitation requires a network-reachable web interface and a cross-site request context; the disclosed impact is limited to sensitive-information exposure.

CVSS severity3.7
Low
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper cookie handling in IBM Sterling B2B Integrator and Sterling File Gateway allows remote attackers to read sensitive information. Affected releases issue a sensitive cookie without a secure SameSite restriction, allowing browsers to attach it to cross-site requests. Exploitation requires a network-reachable web interface and a cross-site request context; the disclosed impact is limited to sensitive-information exposure.

The record

CVE
CVE-2025-36134
Published
Nov 25, 2025
Updated
Nov 25, 2025
Vendor
IBM
Product
IBM Sterling File Gateway
Classifications
CWE-1275, CAPEC-62
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 25, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 25, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=6.0.0.0 <=6.1.2.7
  2. Affected versionversion=6.2.0.0 <=6.2.0.5
  3. Affected versionversion=6.2.1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · IBM Sterling File Gatewayversion=6.0.0.0 <=6.1.2.7; version=6.2.0.0 <=6.2.0.5; version=6.2.1.1
IBM · IBM Sterling B2B Integratorversion=6.0.0.0 <=6.1.2.7; version=6.2.0.0 <=6.2.0.5; version=6.2.1.1

Published CVSS scores

3.7IBM CorporationCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1275Sensitive Cookie with Improper SameSite Attribute
CAPEC-62Cross Site Request Forgery

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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