Page generated: 08 Nov 2026, 12:12 UTC
← Dashboard

CVE-2025-52691

Successful exploitation of the vulnerability could allow an unauthenticated attacker to upload arbitrary files to any location on the mail server, potentially enabling remote code execution.

CVSS 10.0 (CRITICAL) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
8.9/10
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: 85.66%: +0.43

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

The Hacker News
Press · 07 Apr 2026, 07:00 · China-Linked Storm-1175 Exploits Zero-Days to Rapidly Deploy Medusa Ransomware - The Hacker News
The Hacker News
Press · 10 Feb 2026, 08:00 · Warlock Ransomware Breaches SmarterTools Through Unpatched SmarterMail Server - The Hacker News
Help Net Security
Press · 06 Feb 2026, 08:00 · Ransomware attackers are exploiting critical SmarterMail vulnerability (CVE-2026-24423) - Help Net Security
Cyber Press
Press · 31 Jan 2026, 08:00 · New Metasploit Modules Target Critical Vulnerabilities in FreePBX, Cacti, and SmarterMail - Cyber Press
SecurityWeek
Press · 23 Jan 2026, 08:00 · Fresh SmarterMail Flaw Exploited for Admin Access - SecurityWeek
See all 10 source documents
The Hacker News
Press · 22 Jan 2026, 08:00 · SmarterMail Auth Bypass Exploited in the Wild Two Days After Patch Release - The Hacker News
watchTowr Labs
Press · 22 Jan 2026, 08:00 · Attackers With Decompilers Strike Again (SmarterTools SmarterMail WT-2026-0001 Auth Bypass) - watchTowr Labs
watchTowr Labs
Press · 08 Jan 2026, 08:00 · Do Smart People Ever Say They’re Smart? (SmarterTools SmarterMail Pre-Auth RCE CVE-2025-52691) - watchTowr Labs
The Hacker News
Press · 30 Dec 2025, 08:00 · CSA Issues Alert on Critical SmarterMail Bug Allowing Remote Code Execution - The Hacker News
CCB Belgium
Press · 29 Dec 2025, 08:00 · Warning: Critical unauthenticated arbitrary file upload vulnerability in SmarterMail server, Patch Immediately! - CCB Belgium

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 8.9 (2026-11-02 15:13). The curve appears once the score changes.

Public exploit evidence

3

Public exploit entries / repo candidates

See 3 repos with metrics
RepositoryStarsForksLanguageUpdated
DeathShotXD/CVE-2025-52691-APT-PoC53Python27 Oct 2026, 00:40
rimbadirgantara/CVE-2025-52691-poc30—30 Dec 2025, 19:11
you-ssef9/CVE-2025-5269110Python30 Dec 2025, 15:10
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 85.7%
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 13:59:40.227742+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
Published
29 Dec 2025, 02:15
First press mention
29 Dec 2025, 08:00
Added to the CISA KEV catalog
26 Jan 2026, 00:00
Latest press mention
07 Apr 2026, 07:00
Score calculated
05 Nov 2026, 13:59
PoCs on GitHub
3 repositories