CVE-2020-7796

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 2026-02-17), 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: 84%CVSS: 9.8Exploit: cisa kev · ssvc active · 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.

Zimbra Collaboration Suite (ZCS) before 8.8.15 Patch 7 allows SSRF when WebEx zimlet is installed and zimlet JSP is enabled.

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
84%
EPSS %ILE
100%
KEV
⚠ Exploited

Published

February 18, 2020

Last Modified

February 18, 2026

Advisory Details (2)

Auto-updated Sep 17, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-7796
generic Patch Available

Zimbra Releases/8.8.15/P7 - Zimbra :: Tech Center

https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P7

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 53× in last 7d / 224× 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 811 total refreshes for this CVE.

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

Publicly available exploits

(1 reference)

Working exploit code is in the public domain. Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Nucleihttp/cves/2020/CVE-2020-7796.yaml
    First seen Jan 1, 2020

    Zimbra Collaboration Suite < 8.8.15 Patch 7 - Server-Side Request Forgery

    Open source ↗

Frequently asked(6)

What is CVE-2020-7796?
CVE-2020-7796 is a critical vulnerability published on February 18, 2020. Zimbra Collaboration Suite (ZCS) before 8.8.15 Patch 7 allows SSRF when WebEx zimlet is installed and zimlet JSP is enabled.
When was CVE-2020-7796 disclosed?
CVE-2020-7796 was first published in the National Vulnerability Database on February 18, 2020, with the most recent update on February 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-7796 actively exploited?
Yes. CISA added CVE-2020-7796 to the Known Exploited Vulnerabilities catalog on February 17, 2026, affecting Synacor Zimbra Collaboration Suite. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2020-7796?
CVE-2020-7796 has a CVSS v3 base score of 9.8 (NVD).
Which products are affected by CVE-2020-7796?
CVE-2020-7796 affects Synacor Zimbra Collaboration Suite. 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-2020-7796?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-7796, 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.

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