CVE-2022-43995

highpriority · track · 28EPSS 0.003 · 21 %ileDEEURUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.29% (21st) EPSS
CVSS 7.1 · high
Is it mine?
27 products
Check your exposure
Who says so?
6 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

Sudo 1.8.0 through 1.9.12, with the crypt() password backend, contains a plugins/sudoers/auth/passwd.c array-out-of-bounds error that can result in a heap-based buffer over-read. This can be triggered by arbitrary local users with access to Sudo by entering a password of seven characters or fewer. The impact could vary depending on the system libraries, compiler, and processor architecture.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

  • Fixedphoenix_contact_psirt

    Update to the latest 2023.0.0 LTS Firmware Release. PHOENIX CONTACT recommends to always use an up-to-date version of the PLCnext Engineer.

  • Mitigationphoenix_contact_psirt

    Phoenix Contact recommends operating network-capable devices in closed networks or protected with a suitable firewall. For detailed information on our recommendations for measures to protect network-capable devices, please refer to our application note: Measures to protect network-capable devices with Ethernet connection

02

cvss

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

7.1
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.5–7.1

v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.2
v3.17.1highAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Hsecondary · FSTEC (BDU) RU
v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Hsecondary · ENISA EU
v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Hsecondaryexploitability 1.8 · impact 5.2
v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Hsecondary · Phoenix Contact PSIRT DE
v3.16.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)
03

ssvc

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

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-125USprimaryCWE-125USCWE-125US
05

affected products (27)

Products and version ranges known to be affected.

showing 20 of 27
06

advisories (4)

Vendor and ecosystem advisories describing this.

  • VDE-2023-001PHOENIX CONTACT: Multiple Vulnerabilities in PLCnext Firmware2023-02-14csaf · phoenix_contact_psirtDE

    A new LTS Firmware release fixes known vulnerabilities in used open-source libraries. In addition, the following improvements have been implemented: HMI - Hardening against DoS attacks. - Hardening against memory leak problems in case of network attacks. WBM - Umlauts in the password of the 'User Manager' were not handled correctly. The password rule for upper and lower case was not followed. This could lead to unintentionally weaker passwords.- Hardening of WBM against Cross-Site-Scripting. User Manager - In security notifications 'SecurityToken' was always displayed as '0000000' when creating or modifying users.- Hardening of Trust and Identity Stores.

  • WID-SEC-W-2022-1956sudo: Schwachstelle ermöglicht nicht spezifizierten AngriffDeutsch2022-11-03csaf · cert_bundDE

    Ein lokaler Angreifer kann eine Schwachstelle in sudo ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.

  • WID-SEC-W-2023-0296Meinberg LANTIME: Mehrere SchwachstellenDeutsch2023-02-06csaf · cert_bundDE

    Ein lokaler Angreifer kann mehrere Schwachstellen in Meinberg LANTIME ausnutzen, um seine Privilegien zu erhöhen, um einen Denial of Service Zustand herbeizuführen und um nicht näher beschriebene Auswirkungen zu verursachen.

  • WID-SEC-W-2024-0794Dell ECS: Mehrere SchwachstellenDeutsch2024-04-04csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in Dell ECS ausnutzen, um seine Privilegien zu erweitern, beliebigen Programmcode mit Administratorrechten auszuführen, Informationen offenzulegen, Dateien zu manipulieren, einen Cross-Site-Scripting-Angriff durchzuführen, Sicherheitsvorkehrungen zu umgehen oder einen Denial of Service Zustand herbeizuführen.

07

also known as (4)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducert_bundnvdphoenix_contact_psirtNVDCVE.orgMITRE
published 2022-11-02modified 2026-06-17
10

references (21)

External citations — patches, advisories, analysis.

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