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CVE-2022-22965

SpringShell

A Spring MVC or Spring WebFlux application running on JDK 9+ may be vulnerable to remote code execution (RCE) via data binding. The specific exploit requires the application to run on Tomcat as a WAR deployment. If the application is deployed as a Spring Boot executable jar, i.e.…

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A Spring MVC or Spring WebFlux application running on JDK 9+ may be vulnerable to remote code execution (RCE) via data binding. The specific exploit requires the application to run on Tomcat as a WAR deployment. If the application is deployed as a Spring Boot executable jar, i.e. the default, it is not vulnerable to the exploit. However, the nature of the vulnerability is more general, and there may be other ways to exploit it.
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: 99.64%: +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: 21 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 Australian
Press · 30 Apr 2026, 07:00 · Inside the NT ‘hell hole’ where five-year-old Sharon was taken - The Australian
Huntress
Press · 10 Jul 2025, 07:00 · Spring4Shell (CVE-2022-22965) Vulnerability: Analysis, Impact, Mitigation - Huntress
www.trendmicro.com
Press · 20 Apr 2022, 07:00 · Analyzing Attempts to Exploit the Spring4Shell Vulnerability CVE-2022-22965 to Deploy Cryptocurrency Miners - www.trendmicro.com
Palo Alto Networks
Press · 12 Apr 2022, 07:00 · How Cortex XDR Blocks SpringShell Exploits - Palo Alto Networks
www.trendmicro.com
Press · 08 Apr 2022, 07:00 · CVE-2022-22965 Analyzing the Exploitation of Spring4Shell Vulnerability in Weaponizing and Executing the Mirai Botnet Malware - www.trendmicro.com
See all 21 source documents
BleepingComputer
Press · 05 Apr 2022, 07:00 · SpringShell attacks target about one in six vulnerable orgs - BleepingComputer
SOC Prime
Press · 05 Apr 2022, 07:00 · Detect CVE-2022-22965: Updates on Spring Framework RCE - SOC Prime
CPO Magazine
Press · 04 Apr 2022, 07:00 · New Zero-Day RCE Vulnerability in Spring Java Framework; Could "Spring4Shell" Be the Next Log4Shell? - CPO Magazine
Microsoft
Press · 04 Apr 2022, 07:00 · SpringShell RCE vulnerability: Guidance for protecting against and detecting CVE-2022-22965 - Microsoft
Arctic Wolf
Press · 02 Apr 2022, 07:00 · Important Updates on Spring4Shell Vulnerability - Arctic Wolf
wiz.io
Press · 01 Apr 2022, 07:00 · Addressing the Spring4Shell and CVE-2022-22963 RCE vulnerabilities in cloud environments - wiz.io
BankInfoSecurity
Press · 31 Mar 2022, 07:00 · SpringShell, Spring Cloud Function Bugs Need Urgent Patching - BankInfoSecurity
Palo Alto Networks
Press · 31 Mar 2022, 07:00 · Prisma Cloud Mitigations for SpringShell and Recent Spring Vulnerabilities: CVE-2022-22963, CVE-2022-22965 - Palo Alto Networks
Esri
Press · 31 Mar 2022, 07:00 · Spring Framework RCE Vulnerabilities - Esri
Unit 42
Press · 31 Mar 2022, 07:00 · CVE-2022-22965: Spring Core Remote Code Execution Vulnerability Exploited In the Wild (SpringShell) (Updated) - Unit 42
Cloudflare Blog
Press · 31 Mar 2022, 07:00 · WAF mitigations for Spring4Shell - Cloudflare Blog
Cisco Talos Blog
Press · 31 Mar 2022, 07:00 · Threat Advisory: Spring4Shell - Cisco Talos Blog
Sonatype
Press · 30 Mar 2022, 07:00 · New Spring Framework RCE Vulnerability Confirmed - What to Do? - Sonatype
BleepingComputer
Press · 30 Mar 2022, 07:00 · New Spring Java framework zero-day allows remote code execution - BleepingComputer
Rapid7
Press · 30 Mar 2022, 07:00 · Spring4Shell: Zero-Day Vulnerability in Spring Framework (CVE-2022-22965) - Rapid7
StyleCaster
Press · 10 Mar 2020, 07:00 · This Spring, Shell Pendants Might Just Replace Last Year’s Coin Jewelry Obsession - StyleCaster

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

30

Public exploit entries / repo candidates

See 30 repos with metrics
RepositoryStarsForksLanguageUpdated
BobTheShoplifter/Spring4Shell-POC379111Python09 Nov 2022, 15:46
reznok/Spring4Shell-POC326235Python04 Aug 2022, 18:26
WuliRuler/SBSCAN1197Python19 May 2025, 16:03
colincowie/Safer_PoC_CVE-2022-22965447Python27 May 2022, 12:56
FourCoreLabs/spring4shell-exploit-poc4410Shell06 Apr 2022, 15:00
Kirill89/CVE-2022-22965-PoC3221Java05 Apr 2022, 21:30
DDuarte/springshell-rce-poc1912Python18 Apr 2023, 14:15
alt3kx/CVE-2022-22965_PoC177—07 Apr 2022, 19:12
itsecurityco/CVE-2022-22965163Java03 Apr 2022, 08:38
viniciuspereiras/CVE-2022-22965-poc135Python29 Nov 2023, 20:11
sunnyvale-it/CVE-2022-22965-PoC73Python27 Apr 2023, 15:18
wikiZ/springboot_CVE-2022-2296571Python07 Apr 2022, 02:31
Wrin9/CVE-2022-2296571Python02 Apr 2022, 08:45
anair-it/springshell-vuln-POC30Java04 Apr 2022, 19:29
BKLockly/CVE-2022-2296533Go04 Jun 2023, 03:51
CalumHutton/CVE-2022-22965-PoC_Payara30Java08 Apr 2022, 12:16
netcode/Spring4shell-CVE-2022-22965-POC33Python04 Apr 2022, 21:11
jakabakos/CVE-2022-22965-Spring4Shell22Shell21 Jun 2023, 10:28
c4mx/CVE-2022-22965_PoC10Java21 Apr 2022, 10:18
cxzero/CVE-2022-22965-spring4shell11Python21 Dec 2023, 22:07
gokul-ramesh/Spring4Shell-PoC-exploit10Python17 Mar 2023, 14:30
ajith737/Spring4Shell-CVE-2022-22965-POC00Python03 Jan 2023, 18:53
Aur3ns/Block-Spring4Shell00Python15 Dec 2024, 00:16
ClemExp/CVE-2022-22965-PoC00—28 Nov 2022, 14:28
march0n/PoC-CVE-2022-22965-Spring4Shell00Python27 May 2026, 12:37
NickoPS87/Spring4Shell-Python-Firewall-POC00Python19 Oct 2025, 10:30
osungjinwoo/CVE-2022-2296500Python01 Aug 2025, 20:04
PrinceH4k/Spring4Shell-POC00Java03 Aug 2026, 17:14
t3amj3ff/Spring4ShellPoC00Python08 Apr 2022, 09:21
xenosf/CS4239-Spring4Shell-POC00Python14 Nov 2025, 08:31
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 99.6%
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 13:58:35.128013+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
First press mention
10 Mar 2020, 07:00
Published
01 Apr 2022, 22:17
Added to the CISA KEV catalog
04 Apr 2022, 00:00
Latest press mention
30 Apr 2026, 07:00
Score calculated
05 Nov 2026, 13:58
Name
SpringShell
PoCs on GitHub
30 repositories