CVE-2019-9621

Exploitation

Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalog on 2025-07-07. Federal remediation due 2025-07-28.

SSVC decision

• ExploitationactiveCISA reports credible evidence of active 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

81.04% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 99.6% of scored records. A rank, not a probability.

NVD base score

7.5 (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:N/A:N

NVD analysis status

Analyzed. 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

2019-04-30 17:40Z7 YR AGO

Last updated

2025-10-21 23:45Z10 MO AGO

Reserved

2019-03-06

Assigning CNA

mitre

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

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

Weaknesses

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

Data version

5.1

Document digest

29d6cc15793a5703fcdcf7d6f09c543eb8cc60afa3cca79316fec67ab181d913

• wiki.zimbra.comhttps://wiki.zimbra.com/wiki/Zimbra_Security_Advisoriesx_refsource_CONFIRM
• wiki.zimbra.comhttps://wiki.zimbra.com/wiki/Security_Centerx_refsource_MISC
• bugzilla.zimbra.comhttps://bugzilla.zimbra.com/show_bug.cgi?id=109127x_refsource_MISC
• www.rapid7.comhttp://www.rapid7.com/db/modules/exploit/linux/http/zimbra_xxe_rcex_refsource_MISC
• packetstormsecurity.comhttp://packetstormsecurity.com/files/152487/Zimbra-Collaboration-Autodiscover-Servlet-XXE-ProxyServlet-SSRF.htmlx_refsource_MISC
• www.exploit-db.com46693https://www.exploit-db.com/exploits/46693/exploitx_refsource_EXPLOIT-DB
• blog.zimbra.comhttps://blog.zimbra.com/2019/03/9826/x_refsource_MISC
• blog.tint0.comhttps://blog.tint0.com/2019/03/a-saga-of-code-executions-on-zimbra.htmlx_refsource_MISC
• packetstormsecurity.comhttp://packetstormsecurity.com/files/153190/Zimbra-XML-Injection-Server-Side-Request-Forgery.htmlx_refsource_MISC
• www.cisa.govhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-9621government-resource