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CVE-2022-44370

25
FAUCET Score

CVE-2022-44370 describes a heap buffer overflow vulnerability in NASM v2.16, specifically within the quote_for_pmake() function in asm/nasm.c. This flaw carries a high CVSS score of 7.8, indicating a significant risk where an attacker could achieve high confidentiality, integrity, and availability impacts through local access and user interaction. While the vulnerability is severe, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.16CPE matchmatch criteria
cpe:2.3:a:nasm:netwide_assembler:*:*:*:*:*:*:*:*
2.16CPE matchmatch criteria
cpe:2.3:a:nasm:netwide_assembler:2.16:rc1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

CVSS:3.1/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
3.1

Exploit Intelligence

EPSS Score
0.45%
Probability of exploitation in next 30 days
EPSS Percentile
36.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0044 is in the 37th 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

Patch Available

Vendor Patches (6)

microsoftpatch availablevia msrc
Product: cm1 nasm 2.16-1 on CBL Mariner 1.0Fixed in: 2.16-1
microsoftpatch availablevia msrc
Product: cbl2 nasm 2.16-1 on CBL Mariner 2.0Fixed in: 2.16-1
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 2.16-1
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 2.16-1
microsoftpatch availablevia msrc
Product: CBL Mariner 1.0 ARMFixed in: 2.16-1
microsoftpatch availablevia msrc
Product: CBL Mariner 1.0 x64Fixed in: 2.16-1

Vendor Advisories (3)

microsoft2023-Jun/CVE-2022-44370

CVE-2022-44370

Jun 13, 2023
microsoft2023-Mar/CVE-2022-44370Important

NASM v2.16 was discovered to contain a heap buffer overflow in the component quote_for_pmake() asm/nasm.c:856

Mar 14, 2023
redhatCVE-2022-44370Moderate

nasm: heap buffer overflow in quote_for_pmake() in asm/nasm.c

Oct 2, 2022

References

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