LiveActive security incident?Get immediate response
CVE Record

CVE-2022-43701: Insecure directory permissions on installer files

When the installation directory does not have sufficiently restrictive file permissions, an attacker can modify files in the installation directory to cause execution of malicious code.

HighCVSS 7.8Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2022-43701 is a local code-execution risk in several Arm developer tools. If an installation directory is writable by inappropriate users, a low-privileged attacker on the same machine could alter installed files so malicious code runs later. This mainly affects developer workstations and build environments where these tools are installed.

Executive priority

Treat this as high priority for development and build infrastructure, especially shared systems. The business risk is compromise of developer tooling and possible downstream impact to trusted build outputs.

Technical view

The issue is CWE-276: incorrect default or effective permissions. The CVSS 3.1 vector is AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H, scoring 7.8. Sources identify Arm Compiler, Fast Models, Development Studio, Forge, Mobile Studio, DS-5, GNU Toolchain, Keil MDK, and Mbed Studio version ranges as affected.

Likely exposure

Exposure is likely on engineering endpoints, CI runners, build servers, and shared lab systems with the listed Arm tools installed and permissive installation-directory ACLs.

Exploitation context

The bundle does not show KEV listing or active exploitation evidence. Exploitation requires local low-privileged access and a writable installation directory, but does not require user interaction according to the CVSS vector.

Researcher notes

Focus validation on ACLs and ownership of installation paths for listed Arm tools. Evidence in the bundle identifies version ranges but does not provide complete fix detail for every product marked affected across all releases.

Mitigation direction

  • Inventory systems with affected Arm developer tools installed.
  • Restrict installation directories so untrusted users cannot modify files.
  • Upgrade AC6 to 6.20 or later where applicable.
  • Upgrade Arm Forge to 22.1 or later where applicable.
  • For all other affected releases, check Arm and vendor guidance before remediation.
  • Review Intel SA-00930 if Intel-packaged tooling is present.

Validation and detection

  • Confirm affected products and versions on developer and build systems.
  • Check installation-directory permissions for unintended write access.
  • Verify low-privileged users cannot replace installed executables or libraries.
  • Review endpoint logs for unexpected changes under tool installation paths.
  • Confirm remediation against the Arm advisory and Intel advisory where relevant.
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-276: 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-2022-43701 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
High
CVSS
7.8 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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.

1CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.8CVSS 3.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H1.85.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

7.8High
CVSS 3.1 vector shape for CVE-2022-43701Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone
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-276 · source CWE mapping

Incorrect Default Permissions

Incorrect Default Permissions represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.