Zimbra developers are urging administrators to manually patch a zero-day vulnerability that could be used to infiltrate Zimbra Collaboration Suite (ZCS) mail servers.

“A vulnerability has been identified in Zimbra Collaboration Suite version 8.8.15 that could impact the confidentiality and integrity of your data. A fix for this vulnerability will be included in the July patch release,” the company said.

Zimbra developers advise to apply a workaround until updates are released. Additional information about the vulnerability and workaround is available in Zimbra security advisory - zimbra.com.