CVE-2026-73574

MEDIUMNVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.5 under NVD CVSS v3. EPSS exploit probability: 0.3% (23rd percentile of EPSS-scored CVEs). GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 6.5Exploit: None knownExposed services: Not assessed

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

In Zimbra Collaboration before 10.1.17, a local file inclusion (LFI) vulnerability exists in the Zimbra Classic Web Client due to improper validation of the fu request parameter. An unauthenticated attacker can exploit this vulnerability by supplying a crafted path, potentially allowing unauthorized disclosure of protected files, such as WEB-INF/web.xml, within the web application directory. This occurs in the Forward servlet.

CVSS v3
6.5
EG Score
6.5MEDIUMmedium confidence
EG Risk
44
EG Risk 44/100CISA SSVC

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
Severity65% × 45%
Exploitation0% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
0.3%
EPSS %ILE
23rd
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 13, 2026

Last Modified

August 28, 2026

Advisory Details (2)

Auto-updated Aug 28, 2026
No patch confirmed yet.
generic

Zimbra Security Advisories - Zimbra :: Tech Center

https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories
generic

Zimbra Responsible Disclosure Policy - Zimbra :: Tech Center

https://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_Policy

Vendor Advisories for CVE-2026-73574(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 14× in last 7d / 63× 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 116 total refreshes for this CVE.

  1. 2026-10-04 23:22 UTCEPSS rescore
  2. 2026-10-04 22:19 UTCGHSA enrichment
  3. 2026-10-03 19:48 UTCEG score recompute
  4. 2026-10-03 19:48 UTCGHSA enrichment
  5. 2026-10-03 14:26 UTCEPSS rescore
  6. 2026-10-02 07:33 UTCEG score recompute
  7. 2026-10-02 07:33 UTCGHSA enrichment
  8. 2026-10-01 19:50 UTCEPSS rescore
  9. 2026-09-30 21:47 UTCEG score recompute
  10. 2026-09-30 21:47 UTCGHSA enrichment
  11. 2026-09-29 15:24 UTCEPSS rescore
  12. 2026-09-28 13:52 UTCEPSS rescore
  13. 2026-09-28 11:26 UTCEG score recompute
  14. 2026-09-28 11:26 UTCGHSA enrichment
  15. 2026-09-27 13:48 UTCEPSS rescore
  16. 2026-09-27 09:44 UTCEG score recompute
  17. 2026-09-27 09:44 UTCGHSA enrichment
  18. 2026-09-26 15:59 UTCEPSS rescore
  19. 2026-09-24 11:45 UTCEG score recompute
  20. 2026-09-24 11:45 UTCGHSA enrichment
  21. 2026-09-23 17:54 UTCEPSS rescore
  22. 2026-09-23 10:04 UTCEG score recompute
  23. 2026-09-23 10:04 UTCGHSA enrichment
  24. 2026-09-22 08:24 UTCEG score recompute
  25. 2026-09-22 08:24 UTCGHSA enrichment
Show 75 more
  1. 2026-09-21 21:09 UTCEPSS rescore
  2. 2026-09-21 06:43 UTCEG score recompute
  3. 2026-09-21 06:42 UTCGHSA enrichment
  4. 2026-09-20 20:16 UTCEPSS rescore
  5. 2026-09-20 05:01 UTCEG score recompute
  6. 2026-09-20 05:01 UTCGHSA enrichment
  7. 2026-09-19 03:21 UTCEG score recompute
  8. 2026-09-19 03:21 UTCGHSA enrichment
  9. 2026-09-18 19:28 UTCEPSS rescore
  10. 2026-09-18 01:40 UTCEG score recompute
  11. 2026-09-18 01:40 UTCGHSA enrichment
  12. 2026-09-16 23:59 UTCEG score recompute
  13. 2026-09-16 23:59 UTCGHSA enrichment
  14. 2026-09-16 14:08 UTCEPSS rescore
  15. 2026-09-16 05:15 UTCEPSS rescore
  16. 2026-09-15 15:21 UTCEG score recompute
  17. 2026-09-15 15:21 UTCGHSA enrichment
  18. 2026-09-15 03:12 UTCEPSS rescore
  19. 2026-09-14 13:22 UTCEG score recompute
  20. 2026-09-14 13:22 UTCGHSA enrichment
  21. 2026-09-13 11:41 UTCEG score recompute
  22. 2026-09-13 11:41 UTCGHSA enrichment
  23. 2026-09-12 15:02 UTCEPSS rescore
  24. 2026-09-12 10:00 UTCEG score recompute
  25. 2026-09-12 10:00 UTCGHSA enrichment
  26. 2026-09-11 14:53 UTCEPSS rescore
  27. 2026-09-11 08:19 UTCEG score recompute
  28. 2026-09-11 08:19 UTCGHSA enrichment
  29. 2026-09-10 09:35 UTCEPSS rescore
  30. 2026-09-10 06:38 UTCGHSA enrichment
  31. 2026-09-09 04:58 UTCEG score recompute
  32. 2026-09-09 04:57 UTCGHSA enrichment
  33. 2026-09-08 22:01 UTCEPSS rescore
  34. 2026-09-07 16:32 UTCEG score recompute
  35. 2026-09-07 16:32 UTCGHSA enrichment
  36. 2026-09-06 13:48 UTCEPSS rescore
  37. 2026-09-06 06:36 UTCEG score recompute
  38. 2026-09-06 06:36 UTCGHSA enrichment
  39. 2026-09-05 04:56 UTCEG score recompute
  40. 2026-09-05 04:56 UTCGHSA enrichment
  41. 2026-09-04 05:07 UTCEPSS rescore
  42. 2026-09-04 03:14 UTCGHSA enrichment
  43. 2026-09-03 01:02 UTCEG score recompute
  44. 2026-09-03 01:02 UTCGHSA enrichment
  45. 2026-09-02 14:12 UTCEPSS rescore
  46. 2026-09-01 23:15 UTCEG score recompute
  47. 2026-09-01 23:15 UTCGHSA enrichment
  48. 2026-09-01 13:54 UTCEPSS rescore
  49. 2026-09-01 04:40 UTCEPSS rescore
  50. 2026-09-01 04:40 UTCEPSS rescore
  51. 2026-08-31 21:34 UTCEG score recompute
  52. 2026-08-31 21:34 UTCGHSA enrichment
  53. 2026-08-30 19:18 UTCEPSS rescore
  54. 2026-08-30 19:17 UTCEPSS rescore
  55. 2026-08-30 17:31 UTCEG score recompute
  56. 2026-08-30 17:31 UTCGHSA enrichment
  57. 2026-08-30 01:22 UTCEPSS rescore
  58. 2026-08-29 15:50 UTCEG score recompute
  59. 2026-08-29 15:50 UTCGHSA enrichment
  60. 2026-08-28 21:42 UTCEPSS rescore
  61. 2026-08-28 14:07 UTCEG score recompute▲ 3.40
  62. 2026-08-28 14:07 UTCGHSA enrichment
  63. 2026-08-28 14:04 UTCNVD updateCVSS v3 → 6.5 · severity → MEDIUM
  64. 2026-08-27 14:25 UTCEPSS rescore
  65. 2026-08-27 11:12 UTCEG score recompute
  66. 2026-08-27 11:12 UTCGHSA enrichment
  67. 2026-08-26 14:47 UTCEPSS rescore
  68. 2026-08-25 13:49 UTCEPSS rescore
  69. 2026-08-24 12:40 UTCEG score recompute
  70. 2026-08-24 12:40 UTCGHSA enrichment
  71. 2026-08-23 00:19 UTCEPSS rescore
  72. 2026-08-21 23:49 UTCEPSS rescore
  73. 2026-08-21 14:09 UTCEG score recompute
  74. 2026-08-21 14:09 UTCGHSA enrichment
  75. 2026-08-20 22:56 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2026-73574?
CVE-2026-73574 is a medium vulnerability published on August 13, 2026. In Zimbra Collaboration before 10.1.17, a local file inclusion (LFI) vulnerability exists in the Zimbra Classic Web Client due to improper validation of the fu request parameter. An unauthenticated attacker can exploit this vulnerability by supplying a crafted path, potentially allowing…
When was CVE-2026-73574 disclosed?
CVE-2026-73574 was first published on August 13, 2026, with the most recent update on August 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73574 actively exploited?
CVE-2026-73574 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (23rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-73574?
CVE-2026-73574 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-73574?
No fix for CVE-2026-73574 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-73574 are linked in the Vendor Advisories panel on this page.

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