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CVE-2018-1000861

A code execution vulnerability exists in the Stapler web framework used by Jenkins 2.153 and earlier, LTS 2.138.3 and earlier in stapler/core/src/main/java/org/kohsuke/stapler/MetaClass.java that allows attackers to invoke some methods on Java objects by accessing crafted URLs th…

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A code execution vulnerability exists in the Stapler web framework used by Jenkins 2.153 and earlier, LTS 2.138.3 and earlier in stapler/core/src/main/java/org/kohsuke/stapler/MetaClass.java that allows attackers to invoke some methods on Java objects by accessing crafted URLs that were not intended to be invoked this way.
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: 98.33%: +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: 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

Qualys
Press · 22 Feb 2022, 08:00 · Managing CISA Known Exploited Vulnerabilities with Qualys VMDR - Qualys
Check Point Research
Press · 15 Sep 2020, 07:00 · Rudeminer, Blacksquid and Lucifer Walk Into A Bar - Check Point Research
Security Affairs
Press · 26 Jun 2020, 07:00 · New Lucifer DDoS botnet targets Windows systems with multiple exploits - Security Affairs
BleepingComputer
Press · 25 Jun 2020, 07:00 · New Lucifer DDoS malware creates a legion of Windows minions - BleepingComputer
ZDNET
Press · 25 Jun 2020, 07:00 · Lucifer: Devilish malware that abuses critical vulnerabilities on Windows machines - ZDNET
See all 7 source documents
Unit 42
Press · 24 Jun 2020, 07:00 · Lucifer: New Cryptojacking and DDoS Hybrid Malware Exploiting High and Critical Vulnerabilities to Infect Windows Devices - Unit 42
Cisco Talos Blog
Press · 11 Sep 2019, 07:00 · Watchbog and the Importance of Patching - Cisco Talos Blog

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 15:12). 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 98.3%
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 13:57:55.555769+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
Published
10 Dec 2018, 14:00
First press mention
11 Sep 2019, 07:00
Added to the CISA KEV catalog
10 Feb 2022, 00:00
Latest press mention
22 Feb 2022, 08:00
Score calculated
05 Nov 2026, 13:57