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
9.8
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 85%CVSS: 9.8Exploit: NoneExposed: 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
99.7%
KEV
⚠ Exploited

Published

February 18, 2020

Last Modified

February 18, 2026

Advisory Details (2)

Auto-updated Jun 1, 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 54× in last 7d / 218× 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 398 total refreshes for this CVE.

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

Related CVEs(same CWE)

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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