CVE-2026-61511

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

70.77% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 99.3% of scored records. A rank, not a probability.

NVD base score

9.3 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Deferred. NVD last modified this record on 2026-08-07.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-07-27 12:39Z1 MO AGO

Last updated

2026-08-07 05:32Z28 DAYS AGO

Reserved

2026-07-10

Assigning CNA

VulnCheck

Record state

PUBLISHED

Severity

Critical (CVSS 9.3)

CNA CVSS vector

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

Weaknesses

• CWE-95Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')Variant

Data version

5.2

Document digest

5185704585a42d52e004af198829e68a35acdabfe59545057a0851fda1894d9b

• karmainsecurity.comKarma(In)Security Disclosurehttps://karmainsecurity.com/KIS-2026-13technical-descriptionexploit
• ssd-disclosure.comSSD Secure Disclosurehttps://ssd-disclosure.com/vbulletin-runtime-template-runmaths-preauth-rce/technical-descriptionexploit
• forum.vbulletin.com6.2.1, 6.2.0, 6.1.6 Security Announcementhttps://forum.vbulletin.com/forum/vbulletin-announcements/vbulletin-announcements_aa/4509358-security-patch-released-for-vbulletin-6-2-1-6-2-0-and-6-1-6
• forum.vbulletin.com6.2.2 Release Noteshttps://forum.vbulletin.com/forum/vbulletin-announcements/vbulletin-announcements_aa/4509404-vbulletin-6-2-2-is-available
• www.vulncheck.comhttps://www.vulncheck.com/advisories/vbulletin-eval-injection-rce-via-vb5-template-runtime-phpthird-party-advisory
• seclists.orghttp://seclists.org/fulldisclosure/2026/Aug/29