CVE-2019-20633

mediumpriority · track · 22EPSS 0.010 · 63 %ileDEEUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
1.02% (63rd) EPSS
CVSS 4.3 · medium
Is it mine?
31 products
Check your exposure
Who says so?
4 sources
cnnvd · enisa_euvd · cert_bund · phoenix_contact_psirt

EPSS · scored 2026-10-27

GNU patch through 2.7.6 contains a free(p_line[p_end]) Double Free vulnerability in the function another_hunk in pch.c that can cause a denial of service via a crafted patch file. NOTE: this issue exists because of an incomplete fix for CVE-2018-6952.

01

remediations

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

A vendor fix is available.

  • FixedFirmware < 2025.0.2 installed on AXC F 1152phoenix_contact_psirt

    Update to the latest 2025.0.2 Firmware Release. PHOENIX CONTACT recommends to always use an up-to-date version of the PLCnext Engineer.

  • FixedFirmware < 2025.0.2 installed on AXC F 2152phoenix_contact_psirt

    Update to the latest 2025.0.2 Firmware Release. PHOENIX CONTACT recommends to always use an up-to-date version of the PLCnext Engineer.

  • FixedFirmware < 2025.0.2 installed on AXC F 3152phoenix_contact_psirt

    Update to the latest 2025.0.2 Firmware Release. PHOENIX CONTACT recommends to always use an up-to-date version of the PLCnext Engineer.

  • FixedFirmware < 2025.0.2 installed on BPC 9102Sphoenix_contact_psirt

    Update to the latest 2025.0.2 Firmware Release. PHOENIX CONTACT recommends to always use an up-to-date version of the PLCnext Engineer.

  • FixedFirmware < 2025.0.2 installed on RFC 4072Sphoenix_contact_psirt

    Update to the latest 2025.0.2 Firmware Release. PHOENIX CONTACT recommends to always use an up-to-date version of the PLCnext Engineer.

02

cvss

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

5.5
010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04.3mediumAV:N/AC:M/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 8.6 · impact 2.9
v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 3.6
v2.04.3mediumAV:N/AC:M/Au:N/C:N/I:N/A:Psecondary · Phoenix Contact PSIRT DE
v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:Hsecondary · Phoenix Contact PSIRT DE
v3.15.1mediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-415USprimaryCWE-415US
04

affected products (31)

Products and version ranges known to be affected.

showing 20 of 31
05

advisories (2)

Vendor and ecosystem advisories describing this.

  • VDE-2025-053Phoenix Contact: Multiple Vulnerabilities in PLCnext Firmware2025-07-08csaf · phoenix_contact_psirtDE

    Multiple Linux component vulnerabilities fixed in latest PLCnext Firmware release 2025.0.2

  • WID-SEC-W-2025-0225Dell PowerProtect Data Domain: Mehrere SchwachstellenDeutsch2025-01-30csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in Dell PowerProtect Data Domain ausnutzen, um erhöhte Rechte zu erlangen, einen Denial-of-Service-Zustand herbeizuführen und einen nicht näher spezifizierten Angriff durchzuführen.

06

also known as (3)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

cnnvdenisa_euvdcert_bundphoenix_contact_psirtNVDCVE.orgMITRE
published 2020-03-25modified 2026-06-17
09

references (4)

External citations — patches, advisories, analysis.

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