CVE-2020-14343

highPriorität · beachten · 51EPSS 0.060 · 93. PerzentilExploit · PoCDEEURUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

4 exploits · PoC

Likely / severe?

5.98% (93rd) EPSS

CVSS 10 · high

Is it mine?

17 products

Prüfe deine Angriffsfläche

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · bewertet 2026-10-26

A vulnerability was discovered in the PyYAML library in versions before 5.4, where it is susceptible to arbitrary code execution when it processes untrusted YAML files through the full_load method or with the FullLoader loader. Applications that use the library to process untrusted input may be vulnerable to this flaw. This flaw allows an attacker to execute arbitrary code on the system by abusing the python/object/new constructor. This flaw is due to an incomplete fix for CVE-2020-1747.

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

10.0

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · high–critical · 9.3–10

v2.010highAV:N/AC:L/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USAusnutzbarkeit 10 · Auswirkung 10

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

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · OSV

v3.19.3criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-20USprimärCWE-20USCWE-20US

Exploits (4)

Öffentlicher Proof-of-Concept- und Exploit-Code.

Kairo-one/CVE-2020-14343-PyYAMLCVE-2020-14343的payloadPoC · poc_in_github
j4k0m/loader-CVE-2020-14343A web application vulnerable to CVE-2020-14343 insecure deserialization leading to command execution in PyYAML package.PoC · poc_in_github
saina15/cve-2020-14343-labControlled vulnerability research and reproduction lab for CVE-2020-14343 in PyYAMLPoC · poc_in_github
sijie52/yasa-cve-2020-14343sijie52/yasa-cve-2020-14343PoC · poc_in_github

betroffene Produkte (17)

Betroffene Produkte und Versionsbereiche.

Amazon Linux 2alle Versionencert_bundDEcpe:/o:amazon:linux_2:-
Gentoo Linuxalle Versionencert_bundDEcpe:/o:gentoo:linux:-
Open Source Arch Linuxalle Versionencert_bundDEcpe:/o:archlinux:archlinux:-
Oracle Linuxalle Versionencert_bundDEcpe:/o:oracle:linux:-
Red Hat Enterprise Linuxalle Versionencert_bundDEcpe:/o:redhat:enterprise_linux:-
Red Hat Enterprise Linux 8alle Versionencert_bundDEcpe:/o:redhat:enterprise_linux:8
SUSE Linuxalle Versionencert_bundDEcpe:/o:suse:suse_linux:-
n/a PyYAML≤ PyYAML 5.4enisa_euvdEU
АО «НППКТ» ОСОН ОСнова Оnyx≤ 2.12fstec_bduRU
ООО «Ред Софт» РЕД ОС≤ 7.2 Муромfstec_bduRU
ООО «РусБИТех-Астра» Astra Linux Special Edition≤ 4.7fstec_bduRU
ООО «РусБИТех-Астра» Astra Linux Special Edition≤ 1.7fstec_bduRU
Сообщество свободного программного обеспечения PyYAML5.1 → 5.3.1fstec_bduRU
oracle communications cloud native core network function cloud native environment= 1.10.0nvdUScpe:2.3:a:oracle:communications_cloud_native_core_network_function_cloud_native_environment:*:*:*:*:*:*:*:*
oracle communications cloud native core network function cloud native environment= 22.1.0nvdUScpe:2.3:a:oracle:communications_cloud_native_core_network_function_cloud_native_environment:*:*:*:*:*:*:*:*
pyyaml pyyaml5.1 → 5.4nvdUScpe:2.3:a:pyyaml:pyyaml:*:*:*:*:*:*:*:*
PyPI pyyaml< 5.4osvUSpkg:pypi/pyyaml

Advisories (4)

Hersteller- und Ökosystem-Meldungen dazu.

WID-SEC-W-2022-0721Red Hat Enterprise Linux: Mehrere SchwachstellenDeutsch2021-06-29csaf · cert_bundDE
Ein entfernter, anonymer, authentifizierter oder lokaler Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux ausnutzen, um beliebigen Programmcode auszuführen und einen Denial of Service Zustand herzustellen.
WID-SEC-W-2023-1032Oracle PeopleSoft: Mehrere SchwachstellenDeutsch2023-04-18csaf · cert_bundDE
Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle PeopleSoft ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.
GHSA-8q59-q68h-6hv4Improper Input Validation in PyYAML2021-03-25ghsa · osvUS
A vulnerability was discovered in the PyYAML library in versions before 5.4, where it is susceptible to arbitrary code execution when it processes untrusted YAML files through the full_load method or with the FullLoader loader. Applications that use the library to process untrusted input may be vulnerable to this flaw. This flaw allows an attacker to execute arbitrary code on the system by abusing the python/object/new constructor. This flaw is due to an incomplete fix for CVE-2020-1747.
PYSEC-2021-1422021-02-09vendor · osvUS
A vulnerability was discovered in the PyYAML library in versions before 5.4, where it is susceptible to arbitrary code execution when it processes untrusted YAML files through the full_load method or with the FullLoader loader. Applications that use the library to process untrusted input may be vulnerable to this flaw. This flaw allows an attacker to execute arbitrary code on the system by abusing the python/object/new constructor. This flaw is due to an incomplete fix for CVE-2020-1747.

auch bekannt als (7)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd fstec_bdu osv cert_bund nvd NVD CVE.org MITRE

veröffentlicht 2021-02-09geändert 2026-06-17

verwandt (25,157)

Verwandte Einträge.

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A critical remote code execution (RCE) vulnerability has been reported in PTC Windchill PDMlink and PTC FlexPLM. The vulnerability may be exploited through the deserialization of u…
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A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS devices to execute a Command Injection.
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+25152 weitere

Referenzen (26)

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