CVE-2016-4073: n/a vulnerability

CVE-2016-4073: Multiple integer overflows in the mbfl_strcut function in ext/mbstring/libmbfl/mbfl/mbfilter.c in PHP befor...

Multiple integer overflows in the mbfl_strcut function in ext/mbstring/libmbfl/mbfl/mbfilter.c in PHP before 5.5.34, 5.6.x before 5.6.20, and 7.x before 7.0.5 allow remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted mb_strcut call.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 00:17 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2016-4073 is a PHP mbstring flaw that can crash affected applications and may allow code execution. The sources identify fixes in PHP 5.5.34, 5.6.20, and 7.0.5. Business risk is highest for legacy PHP services still processing untrusted multilingual text. Exposure is likely limited to systems running vulnerable PHP versions, especially applications or libraries using mb_strcut with attacker-influenced input. The bundle does not identify specific affected products beyond PHP and distributor packages. Prioritize remediation for externally reachable legacy PHP systems. The issue is old, but remaining exposure signals unsupported software and possible crash or code-execution risk. Mitigation focus: Upgrade PHP to 5.5.34, 5.6.20, 7.0.5, or later supported releases.; Apply fixed vendor packages from Ubuntu, Debian, Red Hat, Gentoo, SUSE, Apple, or HPE where applicable.; Retire unsupported PHP branches from internet-facing services..

Prepared: Jun 13, 2026, 14:22 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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Execution behavior lookup

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CVE-2016-4073 mapping review

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: May 20, 2016, 10:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

7Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
GLSA-201611-22CVE reference · vendor-advisory, x_refsource_GENTOO
https://support.apple.com/HT206567CVE reference · x_refsource_CONFIRM
https://bugs.php.net/bug.php?id=71906CVE reference · x_refsource_CONFIRM
https://gist.github.com/smalyshev/d8355c96a657cc5dba70CVE reference · x_refsource_CONFIRM
https://git.php.net/?p=php-src.git%3Ba=commit%3Bh=64f42c73efc58e88671ad76b6b6bc8e2b62713e1CVE reference · x_refsource_CONFIRM
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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