CVE-2017-12814

Public Exploit

Description

Stack-based buffer overflow in the CPerlHost::Add method in win32/perlhost.h in Perl before 5.24.3-RC1 and 5.26.x before 5.26.1-RC1 on Windows allows attackers to execute arbitrary code via a long environment variable.

Category

9.8
CVSS
Severity: Critical
CVSS 3.0 •
CVSS 2.0 •
EPSS 5.37% Top 15%
Vendor Advisory perl.org Vendor Advisory perl.org Vendor Advisory perl.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/101051 vdb entry third party advisory
https://www.oracle.com/security-alerts/cpujul2020.html
https://rt.perl.org/Public/Bug/Display.html?id=131665 exploit patch vendor advisory
https://perl5.git.perl.org/perl.git/log/refs/tags/v5.26.1-RC1 release notes vendor advisory
https://perl5.git.perl.org/perl.git/log/refs/tags/v5.24.3-RC1 release notes vendor advisory
https://security.netapp.com/advisory/ntap-20180426-0001/

Frequently Asked Questions

What is the severity of CVE-2017-12814?
CVE-2017-12814 has been scored as a critical severity vulnerability.
How to fix CVE-2017-12814?
To fix CVE-2017-12814, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-12814 being actively exploited in the wild?
It is possible that CVE-2017-12814 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~5% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.