How severe is CVE-2019-19786?

CVE-2019-19786 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-19786 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-19786?

CVE-2019-19786 primarily affects Atasm Project Atasm. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-19786?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2019-19786 published?

CVE-2019-19786 was published on 2019-12-13 and last updated on 2026-06-17.

CVE-2019-19786

CVE-2019-19786 is a high-severity vulnerability in Atasm Project Atasm with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 6.8
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Atasm Project Atasm
Published: 2019-12-13
Last modified: 2026-06-17

Description

ATasm 1.06 has a stack-based buffer overflow in the parse_expr() function in setparse.c via a crafted .m65 file.

Frequently asked questions

What is CVE-2019-19786?: ATasm 1.06 has a stack-based buffer overflow in the parse_expr() function in setparse.c via a crafted .m65 file.
How severe is CVE-2019-19786?: CVE-2019-19786 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-19786 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-19786?: CVE-2019-19786 primarily affects Atasm Project Atasm. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-19786?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-19786 published?: CVE-2019-19786 was published on 2019-12-13 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:atasm_project:atasm:1.06:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*

More vulnerabilities in Atasm Project Atasm

CVE-2021-34123 — Critical (CVSS 9.8): An issue was discovered on atasm, version 1.09. A stack-buffer-overflow vulnerability in function aprintf() in asm.c…
CVE-2019-19787 — High (CVSS 7.8): ATasm 1.06 has a stack-based buffer overflow in the get_signed_expression() function in setparse.c via a crafted .m65…
CVE-2019-19785 — High (CVSS 7.8): ATasm 1.06 has a stack-based buffer overflow in the to_comma() function in asm.c via a crafted .m65 file.

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