CVE-2026-125298 json
AsiaInfo Business Support System (BSS) Missing JWT Signature Verification
published yesterday modified yesterday also EUVD-2026-123016
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 45%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- AsiaInfo International Business Support System 9.2.41
- AsiaInfo International aether-menu 2.2.7
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
- Assessed
- 2d ago
Exploit prediction
0.54% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 9.3 | 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 |
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CNA | 4.0 | 9.3 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- AsiaInfo International Business Support System
- AsiaInfo International aether-menu
Classification
- Weakness
-
- CWE-347 Improper Verification of Cryptographic Signature
References
-
asiainfo.eu
/cloudbss
product
-
github.com
/trevorkaon/vulnerability-security-research/blob/main/advisories/asiainfo/CVE-2026-125298.md
third-party-advisory
-
cve.org
/CVERecord?id=CVE-2026-125298
vdb-entry
-
raw.githubusercontent.com
/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-313-03.json
vdb-entry
Sources
- CVE List CVE-2026-125298
- NVD CVE-2026-125298
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.