Security readout for executives and security teams
Plain-English summary
A maliciously crafted Apple icon image can crash Qt software when QImage loads it. The documented impact is loss of availability, not data theft or modification. Applications that accept or automatically process untrusted ICNS files face the greatest risk.
Executive priority
Prioritize systems that automatically process externally supplied images or where repeated crashes affect customer-facing services. Treat this as a normal, time-bound patching item elsewhere. Escalate if crash telemetry indicates attempted abuse or important services lack isolation and restart controls.
Technical view
CVE-2025-5683 is a CWE-770 availability flaw rated CVSS 4.0 5.1. A crafted ICNS image triggers a QImage crash. Affected releases are Qt 6.3.0–6.5.9, 6.6.0–6.8.4, and 6.9.0. Fixes are available in 6.5.10, 6.8.5, and 6.9.1.
Likely exposure
Exposure depends on whether deployed Qt applications load ICNS images from untrusted or externally influenced sources. Internet-facing upload, preview, conversion, indexing, or messaging workflows may be exposed. Applications that never process ICNS files are less likely to be affected.
Exploitation context
The supplied sources do not establish active exploitation, and the CVE is not listed as KEV. Exploitation requires an affected application to load a crafted ICNS image, with active user interaction reflected in the CVSS vector. No confidentiality or integrity impact is documented.
Researcher notes
The record establishes affected ranges, fixed releases, crash behavior, CWE-770, and availability-only impact. The supplied bundle does not provide enough detail to confirm the precise allocation failure, affected code path, crash reproducibility, or public proof-of-concept availability. Avoid inferring memory corruption or code execution.
Mitigation direction
- Upgrade Qt 6.5 deployments to 6.5.10 or later.
- Upgrade Qt 6.8 deployments to 6.8.5 or later.
- Upgrade Qt 6.9.0 deployments to 6.9.1 or later.
- Restrict untrusted ICNS processing until affected applications are upgraded.
- Check Qt guidance for supported upgrade paths on other affected branches.
Validation and detection
- Inventory Qt versions embedded in applications and packaged dependencies.
- Identify workflows that upload, preview, convert, index, or otherwise load ICNS images.
- Confirm production binaries use a documented fixed Qt version.
- Review application crash telemetry for incidents associated with ICNS image processing.
- Retest normal ICNS handling after upgrading without using malicious samples.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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-770: 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 lookupCVE-2025-5683 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.1 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L
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.
SSVC decision data
CVSS vector scores
1 official scoreWe 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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L——TQtCVulnerability scoring details
Base CVSS 4.0 score
5.1MediumVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://issues.oss-fuzz.com/issues/415350704CVE reference, TQtC
- https://codereview.qt-project.org/c/qt/qtimageformats/+/644548CVE reference, TQtC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Allocation of Resources Without Limits or Throttling
Allocation of Resources Without Limits or Throttling represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.