CVE-2021-26085

Atlassian — Atlassian Confluence Server Pre-Authorization Arbitrary File Read Vulnerability

CISA KEV · in the CISA KEV catalog since 2022-03-28

What EVULNABLE says

EVULNABLE Risk · priority 88/100 Immediate Intelligence coverage 75/90 — no pre-patch disclosure data
Overdue by 4.4 yearsRansomwareCISA KEVActively Exploited

Why it matters: Listed in the CISA KEV catalog, and an EPSS probability of 0.999.

Patch Immediately

The priority band answers “how soon”, not “how bad” — see Methodology for what it weighs and where it abstains.

The evidence behind it

Published measurements for CVE-2021-26085
MeasureValueSource
CVSS base score 5.3 NVD
FIRST EPSS 0.999 (99.97th pctl) FIRST
Actively exploited Confirmed CISA KEV
Ransomware campaign use Known CISA KEV
CISA remediation deadline 2022-04-18 — Overdue by 4.4 years CISA KEV
Intelligence coverage 75/90 — no pre-patch disclosure data

What CISA says to do

This page is an opinion about urgency. Where it and a source of record disagree, the source of record is the record.