HOMEVULNERABILITIESCVE-2021-43272
CRITICAL

CVE-2021-43272

CWE-755Published: November 14, 2021· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

An improper handling of exceptional conditions vulnerability exists in Open Design Alliance ODA Viewer sample before 2022.11. ODA Viewer continues to process invalid or malicious DWF files instead of stopping upon an exception. An attacker can leverage this vulnerability to execute code in the context of the current process.

NVD Source

Technical Analysis

CVE-2021-43272 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.

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

opendesign1 product(s)
oda viewer
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

ADVISORYhttps://www.opendesign.com/security-advisories
ADVISORYhttps://www.zerodayinitiative.com/advisories/ZDI-21-1358/
ADVISORYhttps://www.zerodayinitiative.com/advisories/ZDI-21-1360/
ADVISORYhttps://www.zerodayinitiative.com/advisories/ZDI-21-1363/
ADVISORYhttps://www.opendesign.com/security-advisories
ADVISORYhttps://www.zerodayinitiative.com/advisories/ZDI-21-1358/
ADVISORYhttps://www.zerodayinitiative.com/advisories/ZDI-21-1360/
ADVISORYhttps://www.zerodayinitiative.com/advisories/ZDI-21-1363/

All References (8)

→
https://www.opendesign.com/security-advisoriesVendor Advisory
→
https://www.zerodayinitiative.com/advisories/ZDI-21-1358/Third Party Advisory · VDB Entry
→
https://www.zerodayinitiative.com/advisories/ZDI-21-1360/Third Party Advisory · VDB Entry
→
https://www.zerodayinitiative.com/advisories/ZDI-21-1363/Third Party Advisory · VDB Entry
→
https://www.opendesign.com/security-advisoriesVendor Advisory
→
https://www.zerodayinitiative.com/advisories/ZDI-21-1358/Third Party Advisory · VDB Entry
→
https://www.zerodayinitiative.com/advisories/ZDI-21-1360/Third Party Advisory · VDB Entry
→
https://www.zerodayinitiative.com/advisories/ZDI-21-1363/Third Party Advisory · VDB Entry

Quick Facts

CVE IDCVE-2021-43272
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-755
CISA KEVNo
Affected1 vendor(s)
PublishedNov 14, 2021

Related CVEs (CWE-755)

CVE-2019-6256
9.8
CVE-2019-17195
9.8
CVE-2017-2877
9.8
CVE-2018-19991
9.8
CVE-2019-14431
9.8
CVE-2009-5043
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-43272 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.COM. CVE data is provided under the NVD usage policy.
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