CVE-2026-125298

AsiaInfo Business Support System (BSS) Missing JWT Signature Verification

Published Nov 10, 2026 CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
Description
AsiaInfo Business Support System (BSS) 9.2.0 through 9.2.40 does not correctly verify cryptographic signatures for JSON Web Tokens (JWT). A remote, unauthenticated attacker could forge a well-formed JWT without a valid signature and use it to execute privileged actions. Fixed in 9.2.41.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Description AsiaInfo Business Support System (BSS) 9.2.0 through 9.2.40 does not correctly verify cryptographic signatures for JSON Web Tokens (JWT). A remote, unauthenticated attacker could forge a well-formed JWT without a valid signature and use it to execute privileged actions. Fixed in 9.2.41.
Title AsiaInfo Business Support System (BSS) Missing JWT Signature Verification
Weaknesses CWE-347
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Subscriptions

No data.

Weaknesses

Sources

Status
PUBLISHED
Assigner
cisa-cg
Published
Updated
Nov 10, 2026, 9:53 PM
Reserved
Nov 9, 2026, 7:53 PM
Status
Awaiting Analysis
Published
Nov 10, 2026, 10:18 PM
Modified
Nov 12, 2026, 8:04 PM