Page generated: 08 Nov 2026, 06:20 UTC
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CVE-2024-45519

The postjournal service in Zimbra Collaboration (ZCS) before 8.8.15 Patch 46, 9 before 9.0.0 Patch 41, 10 before 10.0.9, and 10.1 before 10.1.1 sometimes allows unauthenticated users to execute commands.

CVSS 10.0 (CRITICAL) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
9.0/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 10: +1.50
  • Fresh EPSS: 99.91%: +0.50

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

Sources: 10 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

Rapid7
Press · 24 Sep 2026, 07:00 · When Business Email Compromise Starts Rewriting Reality - Rapid7
Securelist
Press · 06 Dec 2024, 08:00 · Analyzing the vulnerability landscape in Q3 2024 - Securelist
The HIPAA Journal
Press · 04 Oct 2024, 07:00 · Critical Zimbra Flaw Being Mass Exploited - The HIPAA Journal
The Hacker News
Press · 02 Oct 2024, 07:00 · Researchers Warn of Ongoing Attacks Exploiting Critical Zimbra Postjournal Flaw - The Hacker News
SC Media
Press · 02 Oct 2024, 07:00 · Zimbra email platform under active attack, RCE possible - SC Media
See all 10 source documents
SecurityWeek
Press · 02 Oct 2024, 07:00 · Critical Zimbra Vulnerability Exploited One Day After PoC Release - SecurityWeek
The Record from Recorded Future News
Press · 02 Oct 2024, 07:00 · Zimbra bug causes alarm among researchers, CERTs after exploitation attempts - The Record from Recorded Future News
BleepingComputer
Press · 02 Oct 2024, 07:00 · Critical Zimbra RCE flaw exploited to backdoor servers using emails - BleepingComputer
SOCRadar
Press · 02 Oct 2024, 07:00 · RCE Flaw in Zimbra Exploited, Administrators Advised - SOCRadar
Help Net Security
Press · 02 Oct 2024, 07:00 · Critical Zimbra RCE vulnerability under mass exploitation (CVE-2024-45519) - Help Net Security

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 9.0 (2026-11-02 15:13). The curve appears once the score changes.

Public exploit evidence

0

Public exploit entries / repo candidates

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 10; EPSS 99.9%
Attention, last 30 days
0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential
network access, no prior 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 13:59:17.885001+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
Published
02 Oct 2024, 00:00
First press mention
02 Oct 2024, 07:00
Added to the CISA KEV catalog
03 Oct 2024, 00:00
Latest press mention
24 Sep 2026, 07:00
Score calculated
05 Nov 2026, 13:59