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Fencer Vulns
medium 4.3

CVE-2021-28579 json

Adobe Connect improper access control could lead to privilege escalation

published 2021-06-28 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-15251

cvss
4.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 65%
public exploits
0
none known

Summary

Adobe Connect version 11.2.1 (and earlier) is affected by an Improper access control vulnerability that can lead to the elevation of privileges. An attacker with 'Learner' permissions can leverage this scenario to access the list of event participants.

Patch / fix

  • adobe connect 11.2.2

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
18 mo ago

Exploit prediction

1.09% chance of exploitation in the next 30 days, higher than 65% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:P/I:N/A:N

Affected products

  • Adobe Connect

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.