CVE-2022-21706

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 ImpactpartialSuccessful exploitation gives limited 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

1.21% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 66.1% of scored records. A rank, not a probability.

NVD base score

9.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

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

2022-02-25 23:25Z4 YR AGO

Last updated

2025-04-23 19:00Z1 YR AGO

Reserved

2021-11-16

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

High (CVSS 7.2)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Weaknesses

• CWE-284Improper Access ControlPillar
• CWE-863Incorrect AuthorizationClass

Data version

5.1

Document digest

7ce4aff0a5a5473a0610f4c1d91c9129784499256c67ec21c7edf78da3c3509f

• github.comhttps://github.com/zulip/zulip/security/advisories/GHSA-6xmj-2wcm-p2jcx_refsource_CONFIRM
• github.comhttps://github.com/zulip/zulip/commit/88917019f03860609114082cdc0f31a561503f9ex_refsource_MISC
• blog.zulip.comhttps://blog.zulip.com/2022/02/25/zulip-cloud-invitation-vulnerability/x_refsource_MISC
• blog.zulip.comhttps://blog.zulip.com/2022/02/25/zulip-server-4-10-security-release/#cve-2022-21706x_refsource_MISC