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CVE-2018-19214

25
FAUCET Score

CVE-2018-19214 is a heap-based buffer over-read vulnerability in Netwide Assembler (NASM) version 2.14rc15, specifically within the expand_mmac_params function in asm/preproc.c, affecting NASM and Red Hat Enterprise Linux. This vulnerability carries a CVSS v3.0 score of 7.8 (High), indicating a local attack vector with low attack complexity, requiring user interaction, and potentially leading to high impacts on confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
12.14CPE matchmatch criteria
cpe:2.3:a:nasm:netwide_assembler:12.14:rc15:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.8HIGH

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.34%
Probability of exploitation in next 30 days
EPSS Percentile
68.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0134 is in the 66th percentile among its peer group of 11,621 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (4)

redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: nasm
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: nasm
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: nasm
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: nasm

Vendor Advisories (1)

redhatCVE-2018-19214Low

nasm: heap-based buffer over-read in expand_mmac_params in asm/preproc.c

Oct 28, 2018

References

lists.opensuse.org / opensuse-security-announce/2020-07/msg00015.html
lists.opensuse.org / opensuse-security-announce/2020-07/msg00017.html
bugzilla.nasm.us / show_bug.cgi
ExploitIssue TrackingThird Party Advisory
repo.or.cz / nasm.git/commit/661f723d39e03ca6eb05d7376a43ca33db478354
PatchThird Party Advisory