Vulnerability · Published Sep 1, 2026 · Assigned by TR-CERT
CVE-2026-18808Unauthenticated Remote Code Execution via Code Injection in Klemsan's KIO
Critical 9.8
In plain English
A critical-severity code injection in KIO (Klemsan Internet Objects) from Klemsan Electrical Electronics Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 47% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.6%top 52.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Improper Control of Generation of Code ('Code Injection') vulnerability in Klemsan Electrical Electronics Inc. KIO (Klemsan Internet Objects) allows Code Injection. This issue affects KIO (Klemsan Internet Objects): before v1.9.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Klemsan Electrical Electronics Inc. | KIO (Klemsan Internet Objects) | 0 – before v1.9 |
Weakness: CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0963 government-resource