CVE-2018-19755

mediumpriority · track · 22EPSS 0.010 · 63 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.00% (63rd) EPSS

CVSS 4.3 · medium

Is it mine?

2 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

There is an illegal address access at asm/preproc.c (function: is_mmacro) in Netwide Assembler (NASM) 2.14rc16 that will cause a denial of service (out-of-bounds array access) because a certain conversion can result in a negative integer.

cvss

Technical severity, 0–10. One row per scoring source.

5.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04.3mediumAV:N/AC:M/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 8.6 · impact 2.9

v3.05.5mediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 3.6

v3.05.1mediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USprimary

affected products (2)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
nasm netwide assembler= 12.14nvdUScpe:2.3:a:nasm:netwide_assembler:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2018-11-30modified 2026-06-17

related (25,193)

Related entries.

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+25188 more

references (6)

External citations — patches, advisories, analysis.

https://bugzilla.nasm.us/show_bug.cgi?id=3392528 cnnvd
https://repo.or.cz/nasm.git/commit/3079f7966dbed4497e36d5067cbfd896a90358cb cnnvd
https://bugzilla.nasm.us/show_bug.cgi?id=3392528 enisa_euvd
https://repo.or.cz/nasm.git/commit/3079f7966dbed4497e36d5067cbfd896a90358cb enisa_euvd
https://bugzilla.nasm.us/show_bug.cgi?id=3392528ExploitIssue TrackingThird Party Advisorynvd
https://repo.or.cz/nasm.git/commit/3079f7966dbed4497e36d5067cbfd896a90358cbExploitThird Party Advisorynvd

scry

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