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CVE Record

CVE-2022-43702: Incomplete verification of installation file signature

When the directory containing the installer does not have sufficiently restrictive file permissions, an attacker can modify (or replace) the installer to execute malicious code.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This issue affects installers for several Arm development tools. If an installer is stored in a directory with weak permissions, an attacker who can write there may replace or alter it so malicious code runs when someone installs the software.

Executive priority

Treat this as a supply-chain hygiene issue for engineering environments. Prioritize teams using affected Arm tools, especially where installers are shared or staged centrally.

Technical view

CVE-2022-43702 is an incomplete verification of installation file signature issue mapped to CWE-284. The condition requires insufficiently restrictive permissions on the installer’s directory, enabling modification or replacement of the installer before execution.

Likely exposure

Exposure is most likely on developer workstations, build systems, shared software repositories, or IT deployment paths where affected Arm installers are stored in writable directories.

Exploitation context

The source bundle does not show CISA KEV listing or active exploitation. Exploitation depends on attacker write access to the installer location and a user or process later running the modified installer.

Researcher notes

Evidence is limited: no CVSS vector, no public exploit status, and broad affected-version statements. The key validation point is whether attacker-writable directories can influence installer execution.

Mitigation direction

  • Check Arm KA005596 and Intel SA-00930 for product-specific vendor guidance.
  • Upgrade products where the advisory identifies fixed release boundaries.
  • Restrict installer directories to trusted administrators only.
  • Re-download installers from trusted vendor sources before installation.
  • Avoid running installers from shared or user-writable locations.

Validation and detection

  • Inventory affected Arm tools and versions across developer and build environments.
  • Check file permissions on directories where installers are stored.
  • Confirm installers were obtained from trusted vendor download locations.
  • Review deployment shares for unexpected installer modifications or replacements.
  • Verify AC6 and Arm Forge versions against fixed-release guidance.
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 · medium confidence lookup

CWE-284: Authorization and privilege behavior lookup

Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. 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-2022-43702 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-284 · source CWE mapping

Improper Access Control

Improper Access Control represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.