Page generated: 11 Nov 2026, 12:41 UTC
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CVE-2024-55550

Mitel MiCollab through 9.8 SP2 could allow an authenticated attacker with administrative privilege to conduct a local file read, due to insufficient input sanitization. A successful exploit could allow the authenticated admin attacker to access resources that are constrained to t…

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Mitel MiCollab through 9.8 SP2 could allow an authenticated attacker with administrative privilege to conduct a local file read, due to insufficient input sanitization. A successful exploit could allow the authenticated admin attacker to access resources that are constrained to the admin access level, and the disclosure is limited to non-sensitive system information. This vulnerability does not allow file modification or privilege escalation.
CVSS 4.4 (MEDIUM) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
7.9/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 4.4: +0.66
  • Fresh EPSS: 38.16%: +0.19

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

Sources: 8 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

GreyNoise
Press · 02 Feb 2026, 08:00 · The Noise in the Silence: Unmasking CISA's Hidden KEV Ransomware Updates - GreyNoise
Recorded Future
Press · 28 Aug 2025, 07:00 · H1 2025 Malware and Vulnerability Trends - Recorded Future
BleepingComputer
Press · 24 Jul 2025, 07:00 · Mitel warns of critical MiVoice MX-ONE authentication bypass flaw - BleepingComputer
SecurityWeek
Press · 13 Jun 2025, 07:00 · Critical Vulnerability Exposes Many Mitel MiCollab Instances to Remote Hacking - SecurityWeek
Computing UK
Press · 09 Jan 2025, 08:00 · CISA adds critical Mitel and Oracle vulnerabilities to exploited list - Computing UK
See all 8 source documents
www.thestack.technology
Press · 08 Jan 2025, 08:00 · CISA adds 2020 Oracle vulnerability to KEV: We hope you... - www.thestack.technology
SecurityWeek
Press · 08 Jan 2025, 08:00 · CISA Warns of Mitel MiCollab Vulnerabilities Exploited in Attacks - SecurityWeek
BleepingComputer
Press · 07 Jan 2025, 08:00 · CISA warns of critical Oracle, Mitel flaws exploited in attacks - 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 7.9 (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 4.4; EPSS 38.2%
Attention, last 30 days
0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential
local 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 13:59:22.128001+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
Published
10 Dec 2024, 00:00
Added to the CISA KEV catalog
07 Jan 2025, 00:00
First press mention
07 Jan 2025, 08:00
Latest press mention
02 Feb 2026, 08:00
Score calculated
05 Nov 2026, 13:59