CVE-2022-43974

criticalpriority · track · 40EPSS 0.018 · 78 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.80% (78th) EPSS

CVSS 9.8 · critical

Is it mine?

3 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

MatrixSSL 4.0.4 through 4.5.1 has an integer overflow in matrixSslDecodeTls13. A remote attacker might be able to send a crafted TLS Message to cause a buffer overflow and achieve remote code execution. This is fixed in 4.6.0.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.1–9.8

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.18.1highCVSS:3.1/AC:H/AV:N/A:H/C:H/I:H/PR:N/S:U/UI:Nsecondary · ENISA EU

v3.18.1highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · cve@mitre.org USexploitability 2.2 · impact 5.9

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-190USprimary

affected products (3)

Products and version ranges known to be affected.

Canon Pixmaall versionscert_bundDEcpe:/h:canon:pixma:-
n/a n/a≤ n/aenisa_euvdEU
matrixssl matrixssl4.0.0 → 4.6.0nvdUScpe:2.3:a:matrixssl:matrixssl:*:*:*:*:*:*:*:*

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2022-2414MatrixSSL: Schwachstelle ermöglicht CodeausführungDeutsch2022-12-28csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in MatrixSSL ausnutzen, um beliebigen Programmcode auszuführen oder um Informationen offenzulegen.
WID-SEC-W-2023-0969Canon Drucker: Mehrere SchwachstellenDeutsch2023-04-13csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in verschiedenen Canon Druckermodellen ausnutzen, um beliebigen Programmcode auszuführen, einen Denial of Service Zustand herbeizuführen oder Dateien zu manipulieren.

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd NVD CVE.org MITRE

published 2023-01-09modified 2026-06-17

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+4644 more

references (11)

External citations — patches, advisories, analysis.

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