CVE-2024-45519
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.
do firstApply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Can a WAF block it? Partly. OS command injection puts shell syntax into the request. WAF rules catch common shell commands but miss encoded or unusual payloads.
Also consider: shlex/execve-style APIs
Based on the weakness type only; no CVE-specific evidence yet. We check Cloudflare, AWS, Google Cloud Armor and Azure; for Akamai, Imperva, Fastly, F5, ask your vendor.
Is CVE-2024-45519 being exploited?
Yes. CVE-2024-45519 appears in CISA's Known Exploited Vulnerabilities catalog, which means exploitation in the wild has been confirmed and reported. Treat it as active rather than theoretical, and patch it ahead of higher-scoring vulnerabilities that carry no exploitation evidence.
How severe is CVE-2024-45519?
CVE-2024-45519 is rated Critical with a CVSS score of 10.0. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2024-45519?
Yes. A fix has been recorded for CVE-2024-45519. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2024-45519 affect?
CVE-2024-45519 affects synacor:zimbra_collaboration_suite. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
public exploits
Unvetted proof-of-concept code on GitHub: 4 GitHub proofs of concept · 1 Nuclei template
- Zimbra Collaboration Suite < 9.0.0 - Remote Code Execution · detection template · critical
- Chocapikk/CVE-2024-45519 · 140 ★
- p33d/CVE-2024-45519 · 42 ★
- sec13b/CVE-2024-45519 · 0 ★
- lionels-cyber/CVE-2024-45519-Zimbra-Real-Fix · 0 ★
Listed so you can judge urgency, not as a recommendation to run anything. GitHub “proofs of concept” are unvetted: some are fake or carry malware. Exploit-DB marks the entries its staff verified.
cisa ssvc
- exploitation
- active
- automatable
- yes
- technical impact
- total
Assessed by CISA 3 Oct 2024 (SSVC 2.0.3).
timeline
- 28 Sept 2024First proof-of-concept repository on GitHub (unvetted)
- 2 Oct 2024Published · 5 days later
- 3 Oct 2024Added to CISA KEV (exploited in the wild) · same day later
- 3 Oct 2024CISA SSVC assessment: exploitation active · 1 day later
- 24 Oct 2024CISA remediation due date (US federal agencies) · 20 days later
- 3 Feb 2026CVE record last updated · 468 days (about 1 year) later
- 2 Nov 2026Analysed by vulneraibility.com · 272 days (about 9 months) later
- Exploitblog.projectdiscovery.io /zimbra-remote-code-execution/
- Linkwiki.zimbra.com /wiki/Security_Center
- Linkwiki.zimbra.com /wiki/Zimbra_Responsible_Disclosure_Policy
- Linkwiki.zimbra.com /wiki/Zimbra_Releases/10.1.1#Security_Fixes
- Linkwiki.zimbra.com /wiki/Zimbra_Releases/10.0.9#Security_Fixes
- Linkwiki.zimbra.com /wiki/Zimbra_Releases/9.0.0/P41#Security_Fixes
- Linkwiki.zimbra.com /wiki/Zimbra_Releases/8.8.15/P46#Security_Fixes
- Linkcisa.gov /known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-45519
sources
- CVE List (CVE.org): description, affected versions, references; CVE Terms of Use
- NVD: CVSS and CPE data
- CISA KEV catalog: exploitation, date added, due date
- CISA Vulnrichment (ADP): SSVC decision points
- FIRST EPSS: exploit probability and percentile
- Nuclei templates: detection templates
- PoC-in-GitHub: GitHub repositories that claim a proof of concept
- Summary, impact and triage tags: written by our AI analysis pipeline from the sources above. Check them against the sources.