Is CVE-2025-55182 in the CISA KEV catalog?

Yes. CVE-2025-55182 is on the CISA Known Exploited Vulnerabilities list, added 2025-12-05, and has known ransomware campaign use.

What is the CVSS severity of CVE-2025-55182?

CVE-2025-55182 has a CVSS v3 base score of 10.0 (CRITICAL).

What is the EPSS score for CVE-2025-55182?

CVE-2025-55182 has an EPSS score of 99.56% (100th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-55182?

Upgrade next.js to 16.0.7 or later.

CVE & CISA-KEV Catalog

CVE-2025-55182

CRITICALCISA KEVEPSS 100th pctl

10.0

CVSS v3

NVD

Description

A pre-authentication remote code execution vulnerability exists in React Server Components versions 19.0.0, 19.1.0, 19.1.1, and 19.2.0 including the following packages: react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack. The vulnerable code unsafely deserializes payloads from HTTP requests to Server Function endpoints.

CWE-502Deserialization of Untrusted Data

How to fix

Remediation Available

next.jsNVD

Affected:>= 16.0.0, < 16.0.7Fixed in:16.0.7CVE-2025-55182derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Exploit Intelligence

99.56%probability of exploitation in 30 days

100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Meta React Server Components Remote Code Execution Vulnerability

Meta React Server Components contains a remote code execution vulnerability that could allow unauthenticated remote code execution by exploiting a flaw in how React decodes payloads sent to React Server Function endpoints.

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Remediation due: 2025-12-12

Associated with ransomware campaigns

References

Patch2

Vendor Advisory1

facebook.com

Third-Party Advisory1

aws.amazon.com

Government Resource1

cisa.gov

Issue Tracking1

news.ycombinator.com

Related Vulnerabilities

Other CWE-502 (Deserialization of Untrusted Data) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-0669	High	7.2	100%	KEV + Ransom	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2021-35464	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2023-29300	Critical	9.8	100%	KEV + Ransom	-
CVE-2025-53770	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2022-41082	High	8.0	100%	KEV + Ransom	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-12-10.