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 · kev ransomware · 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

September 10, 2026

Advisory Details (5)

Auto-updated Sep 17, 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

Packet Storm Security

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 / 219× 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 770 total refreshes for this CVE.

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

Related CVEs(same CWE)

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 September 10, 2026. 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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