Page generated: 08 Nov 2026, 10:47 UTC
← Dashboard

CVE-2016-4437

Apache Shiro before 1.2.5, when a cipher key has not been configured for the "remember me" feature, allows remote attackers to execute arbitrary code or bypass intended access restrictions via an unspecified request parameter.

CVSS 9.8 (CRITICAL) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.6/10
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 9.8: +1.47
  • Fresh EPSS: 93.04%: +0.47

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

Sources: 5 documents and public datasets.

Hype components

Headline sample (25%)
10/100
Press, 30 days (60%)
5/100
Grounded branding (15%)
0/100
HYPE TOTAL6/100

Sources and documents

Recorded Future
Press · 13 Oct 2026, 07:00 · 2026年9月 CVEの概況​​ - Recorded Future
Recorded Future
Press · 13 Sep 2026, 07:00 · September 2026 CVE Landscape - Recorded Future
Hong Kong Computer Emergency Response Team Coordination Centre
Press · 16 Jul 2026, 07:00 · StrikeShark Campaign Exploits Known Vulnerabilities to Deploy Cobalt Strike via SharkLoader - Hong Kong Computer Emergency Response Team Coordination Centre
Recorded Future
Press · 10 Jul 2026, 07:00 · June 2026 CVE Landscape - Recorded Future
The Hacker News
Press · 26 Jun 2026, 07:00 · New SharkLoader Malware Deploys Cobalt Strike in StrikeShark Cyberattacks - The Hacker News

Score evolution

● Hype   ● Reality

Earlier evidence-support scores are retained in history; this chart shows only the current priority definition.

First record: hype 0.6 · reality 8.9 (2026-11-02 15:12). The curve appears once the score changes.

Public exploit evidence

1

Public exploit entries / repo candidates

See 1 repos with metrics
RepositoryStarsForksLanguageUpdated
pizza-power/CVE-2016-443720Python29 Jun 2024, 19:51
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 93.0%
Attention, last 30 days
1 distinct story titles; 1 press documents; 1 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 13:57:44.846931+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
Published
07 Jun 2016, 14:00
Added to the CISA KEV catalog
03 Nov 2021, 00:00
First press mention
26 Jun 2026, 07:00
Latest press mention
13 Oct 2026, 07:00
Score calculated
05 Nov 2026, 13:57
PoCs on GitHub
1 repositories