CWE-1263: Improper Physical Access Control

ClassIncomplete

The product is designed with access restricted to certain information, but it does not sufficiently protect against an unauthorized actor with physical access to these areas.

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Extended Description

Sections of a product intended to have restricted access may be inadvertently or intentionally rendered accessible when the implemented physical protections are insufficient. The specific requirements around how robust the design of the physical protection mechanism needs to be depends on the type of product being protected. Selecting the correct physical protection mechanism and properly enforcing it through implementation and manufacturing are critical to the overall physical security of the product.

Technical Details

Structure
Simple

Applicable To

Languages
Not Language-Specific
Platforms
Not OS-Specific

Source-backed guidance

Additional facts reviewed against primary or authoritative security sources.

Verify controls for CWE-1263 with SSDF evidence

Use NIST SSDF verification and vulnerability-response practices to detect CWE-1263, Improper Physical Access Control, throughout the product lifecycle. Derive review questions, static or dynamic checks, and negative tests from the CWE's causal behavior; define the components and lifecycle stages each check covers; and retain findings with enough evidence to distinguish the root cause from symptoms and impacts. Track escapes and false negatives, then improve the verification plan after every confirmed occurrence.

NIST SP 800-218 Secure Software Development Framework — National Institute of Standards and Technology

Address Improper Physical Access Control during Architecture and Design

MITRE associates mitigation with Architecture and Design, Testing, and Manufacturing; recorded impacts include Varies by Context; the entry maps to CAPEC-401. Use these source-defined anchors to turn CWE-1263 into implementation, review, and verification checks for the affected component.

CWE-1263: Improper Physical Access Control — MITRE CWE

Triage CWE-1263 against known exploitation evidence

Use CISA's Known Exploited Vulnerabilities catalog to test whether a vulnerability mapped to CWE-1263, Improper Physical Access Control, has evidence of exploitation in the wild. Confirm the CVE-to-CWE root-cause mapping independently before attaching the example, then capture the affected product, required action, and remediation deadline. A missing KEV match is not evidence that the weakness is unexploited, and a KEV entry must not be generalized to every occurrence of this CWE.

Known Exploited Vulnerabilities Catalog — Cybersecurity and Infrastructure Security Agency

Apply precise root-cause mapping to CWE-1263

Apply MITRE's full root-cause mapping guidance when using CWE-1263, Improper Physical Access Control. Separate weakness language from attacker prerequisites and technical impact, check the entry's abstraction and vulnerability-mapping notes, and prefer the most specific Base or Variant supported by the evidence. Record the rejected alternatives and require an independent review before the mapping is used for remediation trends or program metrics.

CVE to CWE Root Cause Mapping Guidance — MITRE CWE

Validate CWE-1263 with root-cause mapping checks

Apply MITRE's root-cause mapping quick tips to CWE-1263, Improper Physical Access Control. Confirm the finding describes the causal weakness rather than an impact or attack pattern, compare the abstraction and mapping notes with plausible alternatives, and have a second reviewer challenge the selection. Preserve the evidence and reasoning so recurring defects can be measured against one consistent identifier.

CVE to CWE Root Cause Mapping Quick Tips — MITRE CWE

Frequently Asked Questions

What is CWE-1263: Improper Physical Access Control?+

CWE-1263: Improper Physical Access Control is a Common Weakness Enumeration (CWE) entry maintained by MITRE. The product is designed with access restricted to certain information, but it does not sufficiently protect against an unauthorized actor with physical access to these areas. Sections of a product intended to have restricted access may be inadvertently or intentionally rendered accessible when the implemented physical protections are insufficient. The specific requirements around how robust the design of the physical protection mechanism needs to be depends on the type of product being protected. Selecting the correct physical protection mechanism and properly enforcing it through implementation and manufacturing are critical to the overall physical security of the product.

What are the security consequences of Improper Physical Access Control?+

If exploited, CWE-1263 (Improper Physical Access Control) it can compromise Confidentiality, Integrity and Access Control, leading to outcomes such as Varies by Context.

How do you prevent or mitigate Improper Physical Access Control?+

Recommended mitigations for CWE-1263 include: Specific protection requirements depend strongly on contextual factors including the level of acceptable risk associated with compromise to the product's protection mechanism. Designers could incorporate anti-tampering measures that protect against or detect when the product has been tampered with. The testing phase of the lifecycle should establish a method for determining whether the protection mechanism is sufficient to prevent unauthorized access. Ensure that all protection mechanisms are fully activated at the time of manufacturing and distribution.

Which programming languages are affected by Improper Physical Access Control?+

CWE-1263 commonly affects Not Language-Specific. Note that weaknesses are often language-agnostic patterns, so secure coding practices apply broadly.

What is the difference between a CWE and a CVE?+

A CWE (Common Weakness Enumeration) like CWE-1263 describes a category of software weakness — the underlying flaw type. A CVE (Common Vulnerabilities and Exposures) identifies a specific, real-world vulnerability in a particular product. In short, a CWE is the kind of mistake, and a CVE is an instance of that mistake being found in software.

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