CVE-2026-64827

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• 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

0.83% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 57.2% 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 2026-09-09.

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

2026-08-03 13:26Z2 MO AGO

Last updated

2026-08-07 05:32Z2 MO AGO

Reserved

2026-07-20

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-807Reliance on Untrusted Inputs in a Security DecisionBase

Data version

5.2

Document digest

9ec768b69399f240243b916932ed541f7f8ff00ad2373b72943da14150835281

• karmainsecurity.comKarma(in)Security Disclosure (KIS-2026-14)https://karmainsecurity.com/KIS-2026-14technical-descriptionexploit
• www.teleniasoftware.comSupplier Homepagehttps://www.teleniasoftware.com/product
• www.vulncheck.comhttps://www.vulncheck.com/advisories/telenia-tvox-authentication-bypass-via-set-env-phpthird-party-advisory
• seclists.orghttp://seclists.org/fulldisclosure/2026/Aug/30