Paper/Archive/CVE-2026-125298

CVE-2026-125298

AsiaInfo International Business Support System — AsiaInfo Business Support System (BSS) Missing JWT Signature Verification

CVSS 9.8

critical.is priorityof 100

CVSS 9.8 (CNA)9.8 / 10 × 3029.4 Not in CISA KEV+300.0 No EPSS score.000 × 200.0 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource

Business Support System9.2.0 – < 9.2.419.2.41CNA

aether-menu2.2.1 – < 2.2.72.2.7CNA

Scores by source

cisa-cg (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

cisa-cg (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refasiainfo.eu/cloudbss writeupgithub.com/trevorkaon/vulnerability-security-research/blob/main/advisories/asiainfo/CVE-2026-125298.md refcve.org/CVERecord?id=CVE-2026-125298 refraw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-313-03.json