CVE-2021-35209

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

3.00% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 86.1% 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

2021-07-02 18:54Z5 YR AGO

Last updated

2024-08-04 00:33Z2 YR AGO

Reserved

2021-06-22

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-918Server-Side Request Forgery (SSRF)Base

Data version

5.1

Document digest

80a1668aefa47e527895c7cb49065d6c4866029598718efd0c3085d93307813b

• wiki.zimbra.comhttps://wiki.zimbra.com/wiki/Zimbra_Security_Advisoriesx_refsource_MISC
• wiki.zimbra.comhttps://wiki.zimbra.com/wiki/Security_Centerx_refsource_MISC
• wiki.zimbra.comhttps://wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P16x_refsource_MISC
• wiki.zimbra.comhttps://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P23x_refsource_MISC
• blog.sonarsource.comhttps://blog.sonarsource.com/zimbra-webmail-compromise-via-emailx_refsource_MISC