Security readout for executives and security teams
Plain-English summary
ATasm 1.06 can crash or potentially be compromised when it parses a malicious assembler source file. Business impact is most likely limited to developer or build environments that use ATasm and handle untrusted .m65 files.
Executive priority
Treat as a targeted tooling risk, not an internet-facing emergency. Prioritize remediation if ATasm is used in build, research, or file-processing workflows that accept external inputs.
Technical view
The CVE describes a stack-based buffer overflow in ATasm 1.06, specifically parse_expr() in setparse.c, triggered by a crafted .m65 file. The bundle provides no CVSS score, CWE, CPE, or detailed fixed-version data.
Likely exposure
Exposure is likely limited to systems with ATasm 1.06 installed, especially developer workstations, build pipelines, or archival tooling that processes externally supplied .m65 files.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation. The known trigger is processing a crafted .m65 file. Fedora package advisories exist from 2021, indicating downstream remediation activity, but the bundle does not include detailed patch notes.
Researcher notes
Evidence is sparse. The primary technical claim is a stack-based overflow in parse_expr() via crafted .m65 input. No exploit maturity, CVSS vector, fixed upstream version, or affected CPE data is provided in the source bundle.
Mitigation direction
- Inventory systems and build images for ATasm 1.06.
- Apply vendor or distribution updates where available.
- Avoid processing untrusted .m65 files with ATasm.
- Run ATasm only in constrained or disposable environments.
- Remove ATasm where it is no longer required.
Validation and detection
- Confirm whether ATasm is installed and identify its version.
- Check Fedora or vendor package advisory status for deployed packages.
- Review build pipelines for .m65 input from untrusted sources.
- Verify untrusted assembler files are blocked or sandboxed.
- Document any residual use of ATasm 1.06.
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.
CVE-2019-19786 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://sourceforge.net/p/atasm/bugs/9/CVE reference · x_refsource_MISC
- FEDORA-2021-681b6ea532CVE reference · vendor-advisory, x_refsource_FEDORA
- FEDORA-2021-dc534847b2CVE reference · vendor-advisory, x_refsource_FEDORA
- FEDORA-2021-8e96009030CVE reference · vendor-advisory, x_refsource_FEDORA
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.