CVE-2025-55398

CRITICAL

An issue was discovered in mouse07410 asn1c thru 0.9.29 (2025-03-20) - a fork of vlm asn1c. In UPER (Unaligned Packed Encoding Rules), asn1c-generated decoders fail to enforce INTEGER constraints w...

Affects 0 products across 1 vendor.

CVSS 3.19.8
EPSS0.4%
Percentile29th
PatchUnknown
CVSS Vector — Plain English Remotely exploitable over the network, low complexity, no authentication required, no user interaction needed, impact contained to the vulnerable component, full confidentiality impact, full integrity impact, full availability impact.
CWE Weakness Definitions
CWE-1284: CWE-1284
◆ AI Analysis — automated analysis, not human-reviewed

A critical vulnerability in mouse07410 asn1c versions through 0.9.29 allows incorrect or malicious input to be processed due to a failure in enforcing INTEGER constraints in UPER encoding rules.

BSID: BS-2025-GLOBAL-296574-C • Model: /workspace/models/qwen2.5-coder-32b-instruct-bf16 • Confidence: HIGH

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Frequently Asked Questions
What is CVE-2025-55398?
A critical vulnerability in mouse07410 asn1c versions through 0.9.29 allows incorrect or malicious input to be processed due to a failure in enforcing INTEGER constraints in UPER encoding rules.
What is the CVSS score for CVE-2025-55398?
CVE-2025-55398 has CVSS 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS: 0.4%.
Is CVE-2025-55398 actively exploited?
No confirmed active exploitation of CVE-2025-55398 as of 2026-09-25.
How do I remediate CVE-2025-55398?
Priority: IMMEDIATE.
What systems are affected by CVE-2025-55398?
CVE-2025-55398 affects Enforce.
Vulnerability Details
CVE IDCVE-2025-55398
BSIDBS-2025-GLOBAL-296574-C BreachSpider Global ID
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published2025-08-22
Last Modified2026-06-17
ICS Relevance0%
Weakness (CWE)
CWE-1284
SourceNVD
Official Description

An issue was discovered in mouse07410 asn1c thru 0.9.29 (2025-03-20) - a fork of vlm asn1c. In UPER (Unaligned Packed Encoding Rules), asn1c-generated decoders fail to enforce INTEGER constraints when the bound is positive and exceeds 32 bits in length, potentially allowing incorrect or malicious input to be processed.

Source: NIST NVD / MITRE CVE Database

Attack Vector Analysis — CITED Relevance

An attacker can craft specially crafted ASN.1 encoded data that bypasses the expected INTEGER constraints, leading to potential code execution or other malicious outcomes.

Exploitation Likelihood: HIGH

Affected Products
VendorProductAffected Versions
Enforce — —
Remediation

No official vendor advisory link on record. See the CVE record →

Threat Intelligence
● Threat Intelligence Validated: October 2026 | Threat Age: 419 Days
CISA known-exploitedNot in KEV catalog
Public ExploitNot confirmed
PoC CodeNot confirmed
AI Enrichment Record — provenance & audit hash
Model/workspace/models/qwen2.5-coder-32b-instruct-bf16
ConfidenceHIGH
Enriched At2026-05-24
SHA-512 Audit Hash7df51f250e9798541e0b476a8b4eb8fc7eed8fcb958fc04e89c3e3bb86ce28fddf19eec94fd071c13cc5056d213357793bdd20d7865ad1f9f6e55aef0aef93b3
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