CVE-2022-41352

CRITICALNVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-10-20), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
9.8EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 95%CVSS: 9.8Exploit: cisa kev · ssvc active · Metasploit · epss top5pct · epss high · public exploitExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

An issue was discovered in Zimbra Collaboration (ZCS) 8.8.15 and 9.0. An attacker can upload arbitrary files through amavis via a cpio loophole (extraction to /opt/zimbra/jetty/webapps/zimbra/public) that can lead to incorrect access to any other user accounts. Zimbra recommends pax over cpio. Also, pax is in the prerequisites of Zimbra on Ubuntu; however, pax is no longer part of a default Red Hat installation after RHEL 6 (or CentOS 6). Once pax is installed, amavis automatically prefers it over cpio.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
99(Act)
EG Risk 99/100SSVC: Act

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation100% × 40%
Automatability100% × 15%
Action: Fix now — active exploitation, automatable, high impact.
EPSS PROB
95%
EPSS %ILE
100%
KEV
⚠ Exploited

Published

September 26, 2022

Last Modified

November 3, 2025

Advisory Details (5)

Auto-updated Sep 3, 2026
⚠️ Active exploitation confirmed. No patch confirmed yet.
generic

Zimbra Collaboration Suite High Severity Zero-Day RCE Vulnerability is | SecPod

https://www.secpod.com/blog/unpatched-rce-bug-in-zimbra-collaboration-suite-exploited-in-wild/
generic

Zimbra Security Advisories - Zimbra :: Tech Center

https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories
generic🔴 Active Exploitation

Security Center - Zimbra :: Tech Center

https://wiki.zimbra.com/wiki/Security_Center
generic🔴 Active Exploitation

Attacker managed to upload files into Web Client directory - Zimbra Forums

https://forums.zimbra.org/viewtopic.php?t=71153&p=306532
generic

Locked Out | Packet Storm

http://packetstormsecurity.com/files/169458/Zimbra-Collaboration-Suite-TAR-Path-Traversal.html

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 49× in last 7d / 217× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 681 total refreshes for this CVE.

  1. 2026-09-08 07:56 UTCGHSA enrichment
  2. 2026-09-08 03:56 UTCGHSA enrichment
  3. 2026-09-07 23:55 UTCGHSA enrichment
  4. 2026-09-07 19:53 UTCEG score recompute
  5. 2026-09-07 19:53 UTCGHSA enrichment
  6. 2026-09-07 15:58 UTCEPSS rescore
  7. 2026-09-07 15:52 UTCGHSA enrichment
  8. 2026-09-07 11:51 UTCGHSA enrichment
  9. 2026-09-07 07:50 UTCGHSA enrichment
  10. 2026-09-07 03:46 UTCGHSA enrichment
  11. 2026-09-06 23:44 UTCGHSA enrichment
  12. 2026-09-06 19:44 UTCGHSA enrichment
  13. 2026-09-06 15:43 UTCEG score recompute
  14. 2026-09-06 15:43 UTCGHSA enrichment
  15. 2026-09-06 13:45 UTCEPSS rescore
  16. 2026-09-06 11:41 UTCGHSA enrichment
  17. 2026-09-06 07:39 UTCGHSA enrichment
  18. 2026-09-06 03:38 UTCGHSA enrichment
  19. 2026-09-05 23:38 UTCGHSA enrichment
  20. 2026-09-05 19:37 UTCGHSA enrichment
  21. 2026-09-05 15:37 UTCEG score recompute
  22. 2026-09-05 15:37 UTCGHSA enrichment
  23. 2026-09-05 15:25 UTCEPSS rescore
  24. 2026-09-05 11:36 UTCGHSA enrichment
  25. 2026-09-05 07:33 UTCGHSA enrichment
Show 75 more
  1. 2026-09-05 03:32 UTCGHSA enrichment
  2. 2026-09-04 23:31 UTCGHSA enrichment
  3. 2026-09-04 19:30 UTCGHSA enrichment
  4. 2026-09-04 17:38 UTCCISA KEV update
  5. 2026-09-04 15:28 UTCGHSA enrichment
  6. 2026-09-04 11:28 UTCGHSA enrichment
  7. 2026-09-04 07:27 UTCGHSA enrichment
  8. 2026-09-04 03:26 UTCGHSA enrichment
  9. 2026-09-03 23:24 UTCGHSA enrichment
  10. 2026-09-03 19:22 UTCGHSA enrichment
  11. 2026-09-03 15:17 UTCGHSA enrichment
  12. 2026-09-03 11:14 UTCGHSA enrichment
  13. 2026-09-03 07:12 UTCGHSA enrichment
  14. 2026-09-03 03:11 UTCGHSA enrichment
  15. 2026-09-02 23:07 UTCGHSA enrichment
  16. 2026-09-02 19:05 UTCGHSA enrichment
  17. 2026-09-02 17:33 UTCCISA KEV update
  18. 2026-09-02 14:59 UTCGHSA enrichment
  19. 2026-09-02 10:55 UTCGHSA enrichment
  20. 2026-09-02 06:51 UTCGHSA enrichment
  21. 2026-09-02 02:50 UTCGHSA enrichment
  22. 2026-09-01 22:49 UTCGHSA enrichment
  23. 2026-09-01 18:47 UTCGHSA enrichment
  24. 2026-09-01 14:45 UTCGHSA enrichment
  25. 2026-09-01 10:42 UTCGHSA enrichment
  26. 2026-09-01 06:41 UTCEG score recompute
  27. 2026-09-01 06:41 UTCGHSA enrichment
  28. 2026-09-01 02:40 UTCGHSA enrichment
  29. 2026-08-31 22:36 UTCGHSA enrichment
  30. 2026-08-31 18:35 UTCGHSA enrichment
  31. 2026-08-31 14:33 UTCGHSA enrichment
  32. 2026-08-31 14:19 UTCCISA KEV update
  33. 2026-08-31 10:32 UTCGHSA enrichment
  34. 2026-08-31 06:30 UTCGHSA enrichment
  35. 2026-08-31 02:30 UTCGHSA enrichment
  36. 2026-08-30 22:28 UTCEG score recompute
  37. 2026-08-30 22:28 UTCGHSA enrichment
  38. 2026-08-30 19:15 UTCEPSS rescore
  39. 2026-08-30 19:14 UTCEPSS rescore
  40. 2026-08-30 18:28 UTCGHSA enrichment
  41. 2026-08-30 14:27 UTCGHSA enrichment
  42. 2026-08-30 10:26 UTCGHSA enrichment
  43. 2026-08-30 06:25 UTCGHSA enrichment
  44. 2026-08-30 02:24 UTCEG score recompute
  45. 2026-08-30 02:24 UTCGHSA enrichment
  46. 2026-08-30 01:19 UTCEPSS rescore
  47. 2026-08-29 22:23 UTCGHSA enrichment
  48. 2026-08-29 18:22 UTCGHSA enrichment
  49. 2026-08-29 14:21 UTCGHSA enrichment
  50. 2026-08-29 10:20 UTCGHSA enrichment
  51. 2026-08-29 06:19 UTCGHSA enrichment
  52. 2026-08-29 02:17 UTCGHSA enrichment
  53. 2026-08-28 22:13 UTCEG score recompute
  54. 2026-08-28 22:12 UTCGHSA enrichment
  55. 2026-08-28 21:38 UTCEPSS rescore
  56. 2026-08-28 18:10 UTCGHSA enrichment
  57. 2026-08-28 14:08 UTCGHSA enrichment
  58. 2026-08-28 10:05 UTCGHSA enrichment
  59. 2026-08-28 06:03 UTCGHSA enrichment
  60. 2026-08-28 02:01 UTCGHSA enrichment
  61. 2026-08-27 22:00 UTCGHSA enrichment
  62. 2026-08-27 17:59 UTCEG score recompute
  63. 2026-08-27 17:59 UTCGHSA enrichment
  64. 2026-08-27 17:22 UTCCISA KEV update
  65. 2026-08-27 14:22 UTCEPSS rescore
  66. 2026-08-27 13:57 UTCGHSA enrichment
  67. 2026-08-27 09:56 UTCGHSA enrichment
  68. 2026-08-27 05:53 UTCGHSA enrichment
  69. 2026-08-27 01:52 UTCGHSA enrichment
  70. 2026-08-26 21:51 UTCGHSA enrichment
  71. 2026-08-26 17:50 UTCGHSA enrichment
  72. 2026-08-26 17:41 UTCCISA KEV update
  73. 2026-08-26 13:49 UTCGHSA enrichment
  74. 2026-08-26 09:48 UTCGHSA enrichment
  75. 2026-08-26 05:47 UTCGHSA enrichment

Publicly available exploits

(4 references)

Working exploit code is in the public domain (1 Metasploit module) (2 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCCr4ckC4t/cve-2022-41352-zimbra-rce
    First seen Nov 11, 2022

    Zimbra <9.0.0.p27 RCE

    Open source ↗
  • GitHub PoCsegfault-it/cve-2022-41352
    First seen Oct 10, 2022

    cve-2022-41352 poc

    Open source ↗
  • Metasploitexploit/linux/http/zimbra_cpio_cve_2022_41352✓ verified
    First seen Jun 28, 2022

    TAR Path Traversal in Zimbra (CVE-2022-41352)

    Open source ↗
  • Nucleihttp/cves/2022/CVE-2022-41352.yaml
    First seen Jan 1, 2022

    Zimbra Collaboration - Unrestricted File Upload

    Open source ↗

Frequently asked(6)

What is CVE-2022-41352?
CVE-2022-41352 is a critical vulnerability published on September 26, 2022. An issue was discovered in Zimbra Collaboration (ZCS) 8.8.15 and 9.0. An attacker can upload arbitrary files through amavis via a cpio loophole (extraction to /opt/zimbra/jetty/webapps/zimbra/public) that can lead to incorrect access to any other user accounts. Zimbra recommends pax over cpio.…
When was CVE-2022-41352 disclosed?
CVE-2022-41352 was first published in the National Vulnerability Database on September 26, 2022, with the most recent update on November 3, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-41352 actively exploited?
Yes. CISA added CVE-2022-41352 to the Known Exploited Vulnerabilities catalog on October 20, 2022, affecting Synacor Zimbra Collaboration Suite (ZCS). KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2022-41352?
CVE-2022-41352 has a CVSS v3 base score of 9.8 (NVD).
Which products are affected by CVE-2022-41352?
CVE-2022-41352 affects Synacor Zimbra Collaboration Suite (ZCS). The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2022-41352?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-41352, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2022-41352

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