CVE-2020-7060

mediumpriority · track · 39EPSS 0.089 · 95 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

8.89% (95th) EPSS

CVSS 6.4 · medium

Is it mine?

50 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · scored 2026-10-27

When using certain mbstring functions to convert multibyte encodings, in PHP versions 7.2.x below 7.2.27, 7.3.x below 7.3.14 and 7.4.x below 7.4.2 it is possible to supply data that will cause function mbfl_filt_conv_big5_wchar to read past the allocated buffer. This may lead to information disclosure or crash.

remediations

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

A vendor fix is available.

Fixedfesto_psirt
FactoryViews (non-Lite): Upgrade to FactoryViews 1.6.0. See the upgrade guide for information on how to upgrade. FactoryViews Lite: Upgrade to FactoryViews 1.7.0. See the upgrade guide for information on how to upgrade.
FixedMES PCfesto_psirt
Festo Didactic has released Factory Control Panel as a replacement for XAMPP on its MES PCs. Contact technical support at services.didactic@festo.com to obtain the current version of Factory Control Panel which includes fixes for these vulnerabilities.
FixedMES PCcisa_csaf_ot
Festo Didactic has released Factory Control Panel as a replacement for XAMPP on its MES PCs. Contact technical support at services.didactic@festo.com to obtain the current version of Factory Control Panel which includes fixes for these vulnerabilities.

cvss

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

9.1

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 6.4–9.1

v2.06.4mediumAV:N/AC:L/Au:N/C:P/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 4.9

v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.2

v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Hsecondary · CISA US

v3.16.5mediumAV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Lsecondary · FSTEC (BDU) RU

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Lsecondary · ENISA EU

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Lsecondary · security@php.netexploitability 3.9 · impact 2.5

v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Hsecondary · Festo PSIRT DE

v3.18.3highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-125USprimaryCWE-125USCWE-125USCWE-125US

affected products (50)

Products and version ranges known to be affected.

Festo Didactic SE MES PC shipped with Windows 10all versionscisa_csaf_otUS
Festo Didactic SE MES PCall versionscisa_csaf_otUS
PHP Group PHP7.2.x → 7.2.27enisa_euvdEU
PHP Group PHP7.3.x → 7.3.14enisa_euvdEU
PHP Group PHP7.4.x → 7.4.2enisa_euvdEU
FactoryViews 1.6.0all versionsfixedfesto_psirtDEcpe:2.3:a:festo:factory_views_software:1.6.0:*:*:*:*:*:*:*
FactoryViews 1.7.0all versionsfixedfesto_psirtDEcpe:2.3:a:festo:factory_views_software:1.7.0:*:*:*:*:*:*:*
Festo FactoryViews≤ vers:semver/<1.6.0festo_psirtDE
Festo FactoryViews <1.6.0≤ vers:semver/<1.6.0festo_psirtDE
Festo FactoryViews Lite≤ vers:generic/<=1.1festo_psirtDE
Festo FactoryViews Lite <=1.1≤ vers:generic/<=1.1festo_psirtDE
Festo Didactic SE Festo Didactic SE MES PC shipped with Windows 10all versionsfesto_psirtDE
Festo Didactic SE MES PCall versionsfesto_psirtDE
Canonical Ltd. Ubuntu≤ 14.04 ESMfstec_bduRU
Canonical Ltd. Ubuntu≤ 16.04 LTSfstec_bduRU
Canonical Ltd. Ubuntu≤ 12.04 ESMfstec_bduRU
Canonical Ltd. Ubuntu≤ 18.04 LTSfstec_bduRU
Canonical Ltd. Ubuntu≤ 19.10fstec_bduRU
Novell Inc. OpenSUSE Leap≤ 15.1fstec_bduRU
Oracle Corp. Communications Diameter Signaling Router8.0 → 8.4fstec_bduRU

showing 20 of 50

advisories (6)

Vendor and ecosystem advisories describing this.

FSA-202302Festo: Several vulnerabilities in FactoryViews2023-07-10csaf · festo_psirtDE
FactoryViews bundles many third-party applications which are used in background processes to provide the software's features. From time to time, vulnerabilities in these bundled applications are discovered. These are typically fixed in newer versions of FactoryViews by updating the bundled applications. FactoryViews versions up to and including 1.5.2 contain around 200 such vulnerabilities listed in this advisory.Version 1.6.0 is a security rollup release which includes updates to all bundled applications and fixes these vulnerabilities. At this time, FactoryViews Lite cannot be updated beyond version 1.1. FactoryViews 1.7 unifies the non-Lite and Lite versions and fixes these vulnerabilities for users of FactoryViews Lite.
FSA-202402Several Vulnerabilities in MES PC (Windows 10)2024-02-27csaf · festo_psirtDE
MES PCs shipped with Windows 10 come pre-installed with XAMPP. XAMPP is a bundle of third-party open-source applications including the Apache HTTP Server, the MariaDB database and more. From time to time, vulnerabilities in these applications are discovered. These are fixed in newer versions of XAMPP by updating the bundled applications. MES PCs shipped with Windows 10 include a copy of XAMPP which contains around 140 such vulnerabilities listed in this advisory. They can be fixed by replacing XAMPP with Festo Didactic's Factory Control Panel application.
ICSA-26-027-02Festo Didactic SE MES PC2024-02-27icsa · cisa_csaf_otUS
MES PCs shipped with Windows 10 come pre-installed with XAMPP. XAMPP is a bundle of third-party open-source applications including the Apache HTTP Server, the MariaDB database and more. From time to time, vulnerabilities in these applications are discovered. These are fixed in newer versions of XAMPP by updating the bundled applications. MES PCs shipped with Windows 10 include a copy of XAMPP which contains around 140 such vulnerabilities listed in this advisory. They can be fixed by replacing XAMPP with Festo Didactic's Factory Control Panel application.
BIT-libphp-2020-7060global buffer-overflow in mbfl_filt_conv_big5_wchar2025-08-11vendor · osvUS
When using certain mbstring functions to convert multibyte encodings, in PHP versions 7.2.x below 7.2.27, 7.3.x below 7.3.14 and 7.4.x below 7.4.2 it is possible to supply data that will cause function mbfl_filt_conv_big5_wchar to read past the allocated buffer. This may lead to information disclosure or crash.
BIT-php-2020-7060global buffer-overflow in mbfl_filt_conv_big5_wchar2024-03-06vendor · osvUS
When using certain mbstring functions to convert multibyte encodings, in PHP versions 7.2.x below 7.2.27, 7.3.x below 7.3.14 and 7.4.x below 7.4.2 it is possible to supply data that will cause function mbfl_filt_conv_big5_wchar to read past the allocated buffer. This may lead to information disclosure or crash.
BIT-php-min-2020-7060global buffer-overflow in mbfl_filt_conv_big5_wchar2025-01-14vendor · osvUS
When using certain mbstring functions to convert multibyte encodings, in PHP versions 7.2.x below 7.2.27, 7.3.x below 7.3.14 and 7.4.x below 7.4.2 it is possible to supply data that will cause function mbfl_filt_conv_big5_wchar to read past the allocated buffer. This may lead to information disclosure or crash.

also known as (8)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu osv cisa_csaf_ot festo_psirt NVD CVE.org MITRE

published 2020-02-10modified 2026-06-17

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references (63)

External citations — patches, advisories, analysis.

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