CVE-2018-6951

mediumpriority · track · 33EPSS 0.084 · 95 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

8.36% (95th) EPSS

CVSS 5 · medium

Is it mine?

20 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

An issue was discovered in GNU patch through 2.7.6. There is a segmentation fault, associated with a NULL pointer dereference, leading to a denial of service in the intuit_diff_type function in pch.c, aka a "mangled rename" issue.

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.

cvss

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

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Psecondary · Phoenix Contact PSIRT DE

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · Phoenix Contact PSIRT DE

v3.06.9mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-476USprimaryCWE-476USCWE-476US

affected products (20)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
АО «НТЦ ИТ РОСА» РОСА ХРОМ≤ 12.4fstec_bduRU
ООО «РусБИТех-Астра» Astra Linux Special Edition≤ 1.7fstec_bduRU
Сообщество свободного программного обеспечения Debian GNU/Linux≤ 11fstec_bduRU
Сообщество свободного программного обеспечения Debian GNU/Linux≤ 10fstec_bduRU
Сообщество свободного программного обеспечения Patch≤ 2.7.6fstec_bduRU
canonical ubuntu linux= 14.04nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
canonical ubuntu linux= 16.04nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
canonical ubuntu linux= 17.10nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
gnu patch≤ 2.7.6nvdUScpe:2.3:a:gnu:patch:*:*:*:*:*:*:*:*
Firmware 2025.0.2 installed on AXC F 1152all versionsfixedphoenix_contact_psirtDE
Firmware 2025.0.2 installed on AXC F 2152all versionsfixedphoenix_contact_psirtDE
Firmware 2025.0.2 installed on AXC F 3152all versionsfixedphoenix_contact_psirtDE
Firmware 2025.0.2 installed on BPC 9102Sall versionsfixedphoenix_contact_psirtDE
Firmware 2025.0.2 installed on RFC 4072Sall versionsfixedphoenix_contact_psirtDE
Firmware < 2025.0.2 installed on AXC F 1152all versionsphoenix_contact_psirtDE
Firmware < 2025.0.2 installed on AXC F 2152all versionsphoenix_contact_psirtDE
Firmware < 2025.0.2 installed on AXC F 3152all versionsphoenix_contact_psirtDE
Firmware < 2025.0.2 installed on BPC 9102Sall versionsphoenix_contact_psirtDE
Firmware < 2025.0.2 installed on RFC 4072Sall versionsphoenix_contact_psirtDE

advisories (1)

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

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd phoenix_contact_psirt NVD CVE.org MITRE

published 2018-02-13modified 2026-06-17

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+8783 more

references (16)

External citations — patches, advisories, analysis.

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