CVE-2024-45519
Synacor Zimbra Collaboration Suite (ZCS): Command Execution
As of , CVE-2024-45519 in Synacor Zimbra Collaboration Suite (ZCS) is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch this week.
- Exploited
- Yes: CISA listed it on 3 October 2024
- US federal deadline
- 24 October 202421 days after CISA listed it. US federal civilian agencies must fix it by then.
- Used in ransomware campaigns
- Not known to CISA
- EPSS score
- 0.99Higher than 99% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
- EPSS when listed
- 0.00 on 3 October 2024EPSS on the day CISA listed it.
- Public exploit
- None foundNeither Metasploit nor Exploit-DB lists one.
- Fix
- Vendor advice: wiki.zimbra.comLinks below, from CISA's entry.
What CISA says to do
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA's required action
What the flaw is
Synacor Zimbra Collaboration Suite (ZCS) contains an unspecified vulnerability in the postjournal service that may allow an unauthenticated user to execute commands.
CISA's description
The postjournal service in Zimbra Collaboration (ZCS) before 8.8.15 Patch 46, 9 before 9.0.0 Patch 41, 10 before 10.0.9, and 10.1 before 10.1.1 sometimes allows unauthenticated users to execute commands.
The CVE record's description, from mitre
- CVE published
- 2 October 2024
- Assigned by
- mitre
- CVSS
- 10.0 Critical (CVSS 3.1, from the CNA)
- CWE-78
- Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
- CWE-284
- Improper Access Control
- CISA SSVC, exploitation
- active
- CISA SSVC, automatable
- yes
- CISA SSVC, technical impact
- total
Timeline
- The CVE record was published.
- CISA added it to its list of exploited vulnerabilities.
- The US federal deadline to fix it.
- CISA changed its entry. Renamed from Zimbra Collaboration to Zimbra Collaboration Suite (ZCS). Edited: description and name.
Zimbra Collaboration Suite (ZCS): other exploited entries
| Vulnerability | Product | Our group | Listed | Deadline | EPSS |
|---|---|---|---|---|---|
| CVE-2026-73570OS Command Injection | Synacor Zimbra Collaboration Suite (ZCS) | Patch nowForensic triage required by CISA | 0.72 | ||
| CVE-2019-9621Server-Side Request Forgery (SSRF) | Synacor Zimbra Collaboration Suite (ZCS) | Patch this weekMetasploit module; EPSS 0.81; verified Exploit-DB entry | 0.81 | ||
| CVE-2019-9670Improper Restriction of XML External Entity Reference | Synacor Zimbra Collaboration Suite (ZCS) | Patch this weekMetasploit module; EPSS 0.99; verified Exploit-DB entry | 0.99 | ||
| CVE-2022-41352Arbitrary File Upload | Synacor Zimbra Collaboration Suite (ZCS) | Patch this weekRansomware use; Metasploit module; EPSS 0.95 | 0.95 | ||
| CVE-2022-27925Arbitrary File Upload | Synacor Zimbra Collaboration Suite (ZCS) | Patch this weekRansomware use; Metasploit module; EPSS 0.99 | 0.99 | ||
| CVE-2022-37042Authentication Bypass | Synacor Zimbra Collaboration Suite (ZCS) | Patch this weekRansomware use; Metasploit module; EPSS 0.92 | 0.92 | ||
| CVE-2023-34192Cross-Site Scripting (XSS) | Synacor Zimbra Collaboration Suite (ZCS) | Patch this weekEPSS 0.77 | 0.77 | ||
| CVE-2022-27924Command Injection | Synacor Zimbra Collaboration Suite (ZCS) | Patch this weekRansomware use; EPSS 0.94 | 0.94 | ||
| CVE-2018-6882Cross-Site Scripting (XSS) | Synacor Zimbra Collaboration Suite (ZCS) | Patch this weekRansomware use | 0.30 | ||
| CVE-2025-68645PHP Remote File Inclusion | Synacor Zimbra Collaboration Suite (ZCS) | Patch soon | 0.49 |
Read further
- CVE recordcve.org
- NVD entrynvd.nist.gov
- CISA's catalogcisa.gov
- EPSS for this CVEapi.first.org