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CVE-2020-7961

Deserialization of Untrusted Data in Liferay Portal prior to 7.2.1 CE GA2 allows remote attackers to execute arbitrary code via JSON web services (JSONWS).

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: 99.91%: +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: 6 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

IBM
Press · 03 Apr 2025, 11:28 · X-Force Research Update: Top 10 Cybersecurity Vulnerabilities of 2021 - IBM
www.trendmicro.com
Press · 17 Nov 2021, 08:00 · Analyzing ProxyShell-related Incidents via Trend Micro Managed XDR - www.trendmicro.com
The Hacker News
Press · 23 Aug 2021, 07:00 · Top 15 Vulnerabilities Attackers Exploited Millions of Times to Hack Linux Systems - The Hacker News
GreyNoise
Press · 10 Jun 2021, 07:00 · How to Identify & Disrupt C2s Using Graph Analysis | Cybersecurity Blog - GreyNoise
Check Point Research
Press · 19 Jan 2021, 08:00 · FreakOut – Leveraging Newest Vulnerabilities for creating a Botnet - Check Point Research
See all 6 source documents
BleepingComputer
Press · 19 Jan 2021, 08:00 · FreakOut malware exploits critical bugs to infect Linux hosts - 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 9.0 (2026-11-02 15:12). The curve appears once the score changes.

Public exploit evidence

2

Public exploit entries / repo candidates

See 2 repos with metrics
RepositoryStarsForksLanguageUpdated
mzer0one/CVE-2020-7961-POC11738Python14 Apr 2020, 12:31
Alaa-abdulridha/POC-CVE-2020-7961-Token-iterate00—08 Dec 2020, 08:35
Public exploit evidence
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 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 13:58:20.659321+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
Published
20 Mar 2020, 18:16
First press mention
19 Jan 2021, 08:00
Added to the CISA KEV catalog
03 Nov 2021, 00:00
Latest press mention
03 Apr 2025, 11:28
Score calculated
05 Nov 2026, 13:58
PoCs on GitHub
2 repositories