https://reddit.com/r/netsec/comments/1v7x7i9/cve202661511_vbulletin_621_runmaths_preauth_rce/: [CVE-2026-61511] vBulletin <= 6.2.1 (runMaths) Pre-Auth RCE Vulnerability
Published Jul 27, 2026
·Updated
Affected Software
1 affected component
vBulletin vBulletin<=6.2.1
Frequently Asked Questions
1
What is the severity of CVE-2026-61511?
CVE-2026-61511 is classified as a critical severity vulnerability due to its potential for remote code execution.
2
How do I fix CVE-2026-61511?
To remediate CVE-2026-61511, upgrade to the latest version of vBulletin that addresses this vulnerability.
3
What impact does CVE-2026-61511 have on vBulletin sites?
CVE-2026-61511 allows unauthenticated attackers to execute arbitrary code on affected vBulletin installations.
4
Which versions of vBulletin are affected by CVE-2026-61511?
CVE-2026-61511 affects vBulletin versions up to and including 6.2.1.
5
Is there a workaround for CVE-2026-61511?
There is no known effective workaround for CVE-2026-61511; upgrading to a patched version is the only solution.