CVE-2026-11839

Name: CVE-2026-11839
Creator: NVD / NIST
Published: 2026-06-11T16:16:22.497+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.9/10EPSS 0.34%

Last modified Jun 17, 2026

CVE-2026-11839 is a critical-severity vulnerability rated 9.9/10 on the CVSS scale. Unrestricted upload of file with dangerous type vulnerability in Başarsoft Information Technologies Inc. Rotaban allows Upload a Web Shell to a Web Server. This issue affects Rotaban: from V2026.06.002 before V2026.06.003.. EPSS estimates a 0.34% chance of exploitation in the next 30 days.

Description

Unrestricted upload of file with dangerous type vulnerability in Başarsoft Information Technologies Inc. Rotaban allows Upload a Web Shell to a Web Server. This issue affects Rotaban: from V2026.06.002 before V2026.06.003.

Metrics

CVSS 3.1

9.9/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS Probability

0.34%

25.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-434

References

https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0367

Timeline

Published: Jun 11, 2026
Last Modified: Jun 17, 2026
Status: Deferred

Frequently Asked Questions

What is CVE-2026-11839?

How severe is CVE-2026-11839?

CVE-2026-11839 has a CVSS score of 9.9/10 (CRITICAL severity). The EPSS model estimates a 0.34% probability of exploitation in the next 30 days.

How do I fix CVE-2026-11839?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-11839?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST