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Full vulnerability report · 2025
CVE-2025-61609High confidence

In modem, there is a possible system crash due to improper input validation

Unisoc (Shanghai) Technologies Co., Ltd. · T8100/T9100/T8200/T8300

7.5HighCVSS 3.1
Recommended action
Within 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Fix not verified
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2025-199962

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Fix not verified
01

What, why and how

In modem, there is a possible system crash due to improper input validation. This could lead to remote denial of service with no additional execution privileges needed

What

In modem, there is a possible system crash due to improper input validation. This could lead to remote denial of service with no additional execution privileges needed

Why

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may disrupt the affected service.

What

In modem, there is a possible system crash due to improper input validation. This could lead to remote denial of service with no additional execution privileges needed

Why

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may disrupt the affected service.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → Improper Input Validation → disrupt the affected service
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-20 ↗

CWE-20: Improper Input Validation. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.INoneIntegrity impact: No direct loss is represented by this metric.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticatedDenial of serviceCWE-20
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-W-2025-2711Android Patchday Dezember 2025: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Google Android ausnutzen, um sich erweiterte Berechtigungen zu verschaffen, einen Denial-of-Service-Zustand auszulösen, vertrauliche Informationen offenzulegen oder andere nicht näher spezifizierte Angriffe durchzuführen.

Official advisory
CERT-FR · French · CERTFR-2025-AVI-1056Multiples vulnérabilités dans Google Android

d?id=CVE-2025-48631 Référence CVE CVE-2025-48632 https://www.cve.org/CVERecord?id=CVE-2025-48632 Référence CVE CVE-2025-48633 https://www.cve.org/CVERecord?id=CVE-2025-48633 Référence CVE CVE-2025-48637 https://www.cve.org/CVERecord?id=CVE-2025-48637 Référence CVE CVE-2025-48638 https://www.cve.org/CVERecord?id=CVE-2025-48638 Référence CVE CVE-2025-48639 https://www.cve.org/CVERecord?id=CVE-2025-48639 Référence CVE CVE-2025-58410 https://www.cve.org/CVERecord?id=CVE-2025-58410 Référence CVE CVE-2025-61607 https://www.cve.org/CVERecord?id=CVE-2025-61607 Référence CVE CVE-2025-61608 https://www.cve.org/CVERecord?id=CVE-2025-61608 Référence CVE CVE-2025-61609 https://www.cve.org/CVERecord?id=CVE-2025-61609 Référence CVE CVE-2025-61610 https://www.cve.org/CVERecord?id=CVE-2025-61610 Référence CVE CVE-2025-61617 https://www.cve.org/CVERecord?id=CVE-2025-61617 Référence CVE CVE-2025-61618 https://www.cve.org/CVERecord?id=CVE-2025-61618 Référence CVE CVE-2025-61619 https://www.cve.org/CVERecord?id=CVE-2025-61619 Référence CVE CVE-2025-6349 https://www.cve.org/CVERecord?id=CVE-2025-6349 Référence CVE CVE-2025-6573 https://www.cve.org/CVERecord?id=CVE-2025-6573 Référence CVE CVE-2025-8045 https://www.cve.org/CVERecord?id=CVE-2025-8045 Gestion détaillée du document le 02 décembre 2025 Version initiale l

Official advisory
NCSC-NL · Dutch · NCSC-2025-0379Kwetsbaarheden verholpen in Google Android en Samsung Mobile

The document identifies a vulnerability in a modem that may lead to a remote denial of service due to insufficient input validation, potentially causing a system crash without requiring additional execution privileges.

Official advisory
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Fix not verified
Affected
Android13/Android14/Android15/Android16
Fixed
No fixed version is explicitly recorded in the structured CVE data.
Action
No verified patch reference is present in the current structured sources. Check the vendor advisory before making a change.
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 1 Dec 2025 · Last source change 1 Dec 2025, 16:01 UTC · CWE-20 · Improper Input Validation

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2025-199962
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceCNA
NVD statusNVD enriched

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates →

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
ENISA EUVD · EUVD-2025-199962↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2025-61609 · cve.blacktree.nl