CVE-2014-4330

CVE-2014-4330 is a low-severity vulnerability in Perl with a CVSS 2.0 base score of 2.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

• Severity: Low (CVSS 2.0 base score 2.1)
• EPSS exploit prediction: 1% (42nd percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-119
• Affected product: Perl
• Published: 2014-09-30
• Last modified: 2026-06-17

Description

The Dumper method in Data::Dumper before 2.154, as used in Perl 5.20.1 and earlier, allows context-dependent attackers to cause a denial of service (stack consumption and crash) via an Array-Reference with many nested Array-References, which triggers a large number of recursive calls to the DD_dump function.

Frequently asked questions

What is CVE-2014-4330?

The Dumper method in Data::Dumper before 2.154, as used in Perl 5.20.1 and earlier, allows context-dependent attackers to cause a denial of service (stack consumption and crash) via an Array-Reference with many nested Array-References, which triggers a large number of recursive calls to the DD_dump function.

How severe is CVE-2014-4330?

CVE-2014-4330 has a CVSS 2.0 base score of 2.1, rated low severity.

Is CVE-2014-4330 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-4330?

CVE-2014-4330 primarily affects Perl. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-4330?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2014-4330 published?

CVE-2014-4330 was published on 2014-09-30 and last updated on 2026-06-17.

References

• http://advisories.mageia.org/MGASA-2014-0406.html
• http://lists.fedoraproject.org/pipermail/package-announce/2014-September/139441.html
• http://packetstormsecurity.com/files/128422/Perl-5.20.1-Deep-Recursion-Stack-Overflow.html
• http://seclists.org/fulldisclosure/2014/Sep/84
• http://seclists.org/oss-sec/2014/q3/692
• http://secunia.com/advisories/61441
• http://secunia.com/advisories/61961
• http://www.mandriva.com/security/advisories?name=MDVSA-2015:136
• http://www.nntp.perl.org/group/perl.perl5.porters/2014/09/msg220118.html
• http://www.securityfocus.com/archive/1/533543/100/0/threaded
• http://www.securityfocus.com/bid/70142
• http://www.ubuntu.com/usn/USN-2916-1
• https://exchange.xforce.ibmcloud.com/vulnerabilities/96216
• https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731
• https://metacpan.org/pod/distribution/Data-Dumper/Changes
• https://www.lsexperts.de/advisories/lse-2014-06-10.txt

Affected products (2)

• cpe:2.3:a:perl:perl:*:*:*:*:*:*:*:*
• cpe:2.3:a:data_dumper_project:data_dumper:*:*:*:*:*:*:*:*

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Browse all CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities →

Threat intelligence

Threat-intel indicators referencing this CVE:

• 182.93.50.90 (ipv4-addr)
• 103.165.139.145 (ipv4-addr)
• 121.40.151.192 (ipv4-addr)
• 40.83.182.122 (ipv4-addr)