Page generated: 09 Nov 2026, 06:30 UTC
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CVE-2022-27925

Zimbra Collaboration (aka ZCS) 8.8.15 and 9.0 has mboximport functionality that receives a ZIP archive and extracts files from it. An authenticated user with administrator rights has the ability to upload arbitrary files to the system, leading to directory traversal.

CVSS 7.2 (HIGH) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
8.6/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 7.2: +1.08
  • Fresh EPSS: 98.68%: +0.49

General review priority, not probability, victim count or asset-specific risk. A range covers missing CVSS/EPSS inputs within the current evidence state.

Sources: 11 documents and public datasets.

Hype components

Headline sample (25%)
0/100
Press, 30 days (60%)
0/100
Grounded branding (15%)
0/100
HYPE TOTAL0/100

Sources and documents

Recorded Future
Press · 08 Sep 2026, 07:00 · August 2026 CVE Landscape - Recorded Future
Hong Kong Computer Emergency Response Team Coordination Centre
Press · 16 Jul 2026, 07:00 · StrikeShark Campaign Exploits Known Vulnerabilities to Deploy Cobalt Strike via SharkLoader - Hong Kong Computer Emergency Response Team Coordination Centre
Recorded Future
Press · 10 Jul 2026, 07:00 · June 2026 CVE Landscape - Recorded Future
The Hacker News
Press · 26 Jun 2026, 07:00 · New SharkLoader Malware Deploys Cobalt Strike in StrikeShark Cyberattacks - The Hacker News
GreyNoise
Press · 26 Feb 2025, 08:00 · GreyNoise Detects Active Exploitation of CVEs Mentioned in Black Basta’s Leaked Chat Logs - GreyNoise
See all 11 source documents
Cybersecurity Dive
Press · 11 Nov 2022, 08:00 · CISA warns unpatched Zimbra users to assume breach - Cybersecurity Dive
GreyNoise
Press · 18 Aug 2022, 07:00 · Zimbra Collaboration Suite vulnerability analysis - GreyNoise
Rapid7
Press · 17 Aug 2022, 07:00 · Active Exploitation of Multiple Vulnerabilities in Zimbra Collaboration Suite - Rapid7
SOCRadar
Press · 12 Aug 2022, 07:00 · Over 1,000 Zimbra Servers Compromised by Auth Bypass Vulnerability - SOCRadar
Security Affairs
Press · 12 Aug 2022, 07:00 · Experts warn of mass exploitation of an RCE flaw in Zimbra Collaboration Suite - Security Affairs
BleepingComputer
Press · 11 Aug 2022, 07:00 · Zimbra auth bypass bug exploited to breach over 1,000 servers - BleepingComputer

Score evolution

● Hype   ● Reality

Earlier evidence-support scores are retained in history; this chart shows only the current priority definition.

First record: hype 0.0 · reality 8.6 (2026-11-02 15:13). The curve appears once the score changes.

Public exploit evidence

5

Public exploit entries / repo candidates

See 5 repos with metrics
RepositoryStarsForksLanguageUpdated
vnhacker1337/CVE-2022-27925-PoC6521Python13 Aug 2022, 18:54
Josexv1/CVE-2022-279254319Python27 Aug 2022, 20:30
sh4den/CVE-2022-27925184Python06 Jul 2026, 08:38
onlyHerold22/CVE-2022-27925-PoC01Python19 Oct 2022, 12:47
sanan2004/CVE-2022-2792500—19 Aug 2024, 17:17
Evidence context and dated references

Reality is general threat/review priority, combining observed exploitation, CVSS severity and fresh EPSS. Evidence confidence is separate. This is not calibrated risk, a victim count or an asset-specific assessment. A range reflects missing numeric inputs.

Evidence in context

Confidence in exploitation evidence
Exploitation recorded
Priority basis
Recorded exploitation; CVSS 7.2; EPSS 98.7%
Attention, last 30 days
0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential
network access, high privileges, no user interaction.
Observed activity
Exploitation recorded in CISA KEV.
Known scale
Not quantified.
Evidence confidence basis
Trusted exploitation confirmation

Score evaluated: 2026-11-05 13:58:38.168185+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
Published
20 Apr 2022, 23:23
Added to the CISA KEV catalog
11 Aug 2022, 00:00
First press mention
11 Aug 2022, 07:00
Latest press mention
08 Sep 2026, 07:00
Score calculated
05 Nov 2026, 13:58
PoCs on GitHub
5 repositories