Page generated: 07 Nov 2026, 05:01 UTC
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CVE-2023-29300

Adobe ColdFusion versions 2018u16 (and earlier), 2021u6 (and earlier) and 2023.0.0.330468 (and earlier) are affected by a Deserialization of Untrusted Data vulnerability that could result in Arbitrary code execution. Exploitation of this issue does not require user interaction.

CVSS 9.8 (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 9.8: +1.47
  • Fresh EPSS: 99.99%: +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: 7 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

Security Affairs
Press · 03 Jan 2026, 08:00 · Thousands of ColdFusion exploit attempts spotted during Christmas holiday - Security Affairs
BleepingComputer
Press · 27 Sep 2024, 07:00 · Embargo ransomware escalates attacks to cloud environments - BleepingComputer
Microsoft
Press · 26 Sep 2024, 07:00 · Storm-0501: Ransomware attacks expanding to hybrid cloud environments - Microsoft
BleepingComputer
Press · 09 Jan 2024, 08:00 · CISA warns agencies of fourth flaw used in Triangulation spyware attacks - BleepingComputer
Trellix
Press · 02 Aug 2023, 07:00 · The Bug Report – July 2023 Edition - Trellix
See all 7 source documents
Rapid7
Press · 17 Jul 2023, 07:00 · Active Exploitation of Multiple Adobe ColdFusion Vulnerabilities - Rapid7
Rapid7
Press · 21 Mar 2023, 07:00 · Rapid7-Observed Exploitation of Adobe ColdFusion - Rapid7

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 9.8; EPSS 100.0%
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 13:58:52.927189+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
First press mention
21 Mar 2023, 07:00
Published
12 Jul 2023, 15:46
Added to the CISA KEV catalog
08 Jan 2024, 00:00
Latest press mention
03 Jan 2026, 08:00
Score calculated
05 Nov 2026, 13:58