HOMEVULNERABILITIESCVE-2021-37232
CRITICAL

CVE-2021-37232

CWE-787Published: August 4, 2021· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

A stack overflow vulnerability occurs in Atomicparsley 20210124.204813.840499f through APar_read64() in src/util.cpp due to the lack of buffer size of uint32_buffer while reading more bytes in APar_read64.

NVD Source

Technical Analysis

CVE-2021-37232 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

atomicparsley_project1 product(s)
atomicparsley
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/wez/atomicparsley/commit/d72ccf06c98259d7261e0f3ac4fd8717778782c1
PATCHhttps://github.com/wez/atomicparsley/issues/32
PATCHhttps://github.com/wez/atomicparsley/commit/d72ccf06c98259d7261e0f3ac4fd8717778782c1
PATCHhttps://github.com/wez/atomicparsley/issues/32

All References (6)

→
https://github.com/wez/atomicparsley/commit/d72ccf06c98259d7261e0f3ac4fd8717778782c1Patch · Third Party Advisory
→
https://github.com/wez/atomicparsley/issues/32Exploit · Patch · Third Party Advisory
→
https://security.gentoo.org/glsa/202305-01
→
https://github.com/wez/atomicparsley/commit/d72ccf06c98259d7261e0f3ac4fd8717778782c1Patch · Third Party Advisory
→
https://github.com/wez/atomicparsley/issues/32Exploit · Patch · Third Party Advisory
→
https://security.gentoo.org/glsa/202305-01

Quick Facts

CVE IDCVE-2021-37232
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-787
CISA KEVNo
Affected1 vendor(s)
PublishedAug 4, 2021

Related CVEs (CWE-787)

CVE-2002-2227
10.0
CVE-2012-0751
10.0
CVE-2004-0574
10.0
CVE-2004-1287
10.0
CVE-2011-1807
10.0
CVE-2012-3957
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-37232 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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