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CVE-2019-8343

20
FAUCET Score

CVE-2019-8343 describes a use-after-free vulnerability in Netwide Assembler (NASM) version 2.14.02, specifically within the paste_tokens function in asm/preproc.c. This vulnerability carries a high CVSS score of 7.8, indicating a local attack vector with low complexity that could lead to high impacts on confidentiality, integrity, and availability. While the vulnerability is significant, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or community discussion surrounding it.

Impacted Technologies

VendorProductVersion(s)CPE
2.14.02CPE matchmatch criteria
cpe:2.3:a:nasm:netwide_assembler:2.14.02:*:*:*:*:*:*:*

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
1.14%
Probability of exploitation in next 30 days
EPSS Percentile
63.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0114 is in the 61st percentile among its peer group of 11,621 CVEs.

Social Chatter

No social media mentions found for this CVE.

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 (3)

redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed 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-2019-8343Low

nasm: use-after-free in paste_tokens in asm/preproc.c

Feb 14, 2019

References

bugzilla.nasm.us / show_bug.cgi
ExploitIssue TrackingThird Party Advisory
security.gentoo.org / glsa/202312-09