CVE-2026-35098: KTM System e-BOK does not implement any limit or timeout on consecutive login attempts, allowing an attacker to perform unlimited authentication requests. This lack of rate‑limitin
KTM System e-BOK does not implement any limit or timeout on consecutive login attempts, allowing an attacker to perform unlimited authentication requests. This lack of rate‑limiting enables efficient brute‑force attacks against user accounts. When combined with vulnerability CVE-2026-35097, where passwords are restricted to a six‑digit numeric format, this becomes a critical issue, as such passwords can be brute‑forced in a relatively short time.
This issue was fixed in the patch published in June 2026.
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-35098
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-350980.32% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 24% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-35098 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for KTM System e-BOK
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- unknownCVE-2026-35097: KTM System e-BOK enforces a maximum password length of six numeric digits and does not permit …nvd · 2026-06-30
- unknownCVE-2026-35096: KTM System e-BOK is vulnerable to Cross‑Site Request Forgery (CSRF) in both the email-change a…nvd · 2026-06-30
- unknownCVE-2026-35095: KTM System e-BOK allows the session identifier to be set by the client prior to authentication…nvd · 2026-06-30
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