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CVE Record

CVE-2022-43703: Incomplete verification of installation file signature

An installer that loads or executes files using an unconstrained search path may be vulnerable to substitute files under control of an attacker being loaded or executed instead of the intended files.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2022-43703 is an Arm installer weakness. During installation, affected tools may search for needed files too broadly, allowing an attacker-controlled substitute file to be loaded instead of the intended file. This mainly matters on developer or build systems where installation packages are run.

Executive priority

Treat this as a targeted engineering-environment risk, not a broad internet-exposed emergency. Prioritize developer workstations and build systems because compromised installation workflows can undermine trusted toolchains.

Technical view

The issue maps to CWE-427: uncontrolled search path element. The CVE describes installers that load or execute files from an unconstrained search path, creating potential substitute-file execution. Public data lists many Arm development products, with no CVSS score and no KEV listing.

Likely exposure

Exposure is most likely on endpoints, build machines, or engineering workstations that install or update affected Arm development tools. The sources identify broad Arm product families, including AC5, AC6 before 6.20, Arm Forge before 22.1, DS-5, Fast Models, GNU Toolchain, Keil MDK, and Mbed Studio.

Exploitation context

The bundle does not show active exploitation. Abuse would depend on an attacker being able to influence files visible to an affected installer’s search path during installation or update. The highest concern is installer execution in privileged contexts.

Researcher notes

Evidence is incomplete for severity, exploit maturity, and fixes across all listed products. The source bundle supports affected-product scoping and CWE-427 behavior, but does not provide CVSS, weaponized exploit status, or universal remediation details.

Mitigation direction

  • Inventory affected Arm development tools and installer packages in engineering environments.
  • Prioritize AC6 upgrades to 6.20 or later where applicable.
  • Prioritize Arm Forge upgrades to 22.1 or later where applicable.
  • For products listed as all releases affected, check current Arm guidance before reinstalling.
  • Run installers only from trusted local paths with controlled write access.

Validation and detection

  • Confirm installed Arm product names and versions against the affected list.
  • Review software deployment records for affected installer use on developer or build systems.
  • Check whether installers ran from writable shared folders or mixed-content directories.
  • Verify vendor guidance for each affected Arm product family.
  • Document compensating controls where no fixed version is identified.
Prepared
Confidence
medium
Sources
4

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-427: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2022-43703 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Arm LtdArm Compiler 5 (AC5), Arm Compiler for Embedded 6 (AC6), Fast Models (FM), Arm Compiler for Embedded FuSA (ACEF), Arm Development Studio (ADS), Arm Forge (AF), Arm Mobile Studio (AMS), DS-5 Development Studio, Fast Models (FM), GNU Toolchain (GT), Keil MDK (KMDK), Mbed Studio (MS)AC5 All Releases, AC6 Releases prior to 6.20, ACEF All Releases, ADS All Releases, AF Releases prior to 22.1, AMS All releases, DS5 All Releases, FM All Releases, GT All Releases, KMDK All Releases, MS All Releasesaffected
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-427 · source CWE mapping

Uncontrolled Search Path Element

Uncontrolled Search Path Element represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.