Vulnerability Report

CVE-2018-6798

Title: Perl Memory Corruption

Memory Corruption

Proof Of Concept

No public PoC currently indexed for CVE-2018-6798.

CWE Category CWE-125

Published Date Apr 17, 2018

Modified Date Jun 17, 2026

Exploit Status Not Found

Score 7.5 CVSS v3.0

Exploit Probability (EPSS)

4.00%

Vulnerability Summary

CVE-2018-6798: An issue was discovered in Perl 5.22 through 5.26. Matching a crafted locale dependent regular expression can cause a heap-based buffer over-read and potentially information disclosure.

Impacted Vendors

perl 1

larry_wall 1

Reference Links

http://www.securitytracker.com/id/1040681 https://access.redhat.com/errata/RHSA-2018:1192 https://rt.perl.org/Public/Bug/Display.html?id=132063 https://security.gentoo.org/glsa/201909-01 https://usn.ubuntu.com/3625-1/ https://www.debian.org/security/2018/dsa-4172 https://www.oracle.com/security-alerts/cpujul2020.html http://www.securitytracker.com/id/1040681 https://access.redhat.com/errata/RHSA-2018:1192 https://rt.perl.org/Public/Bug/Display.html?id=132063 https://security.gentoo.org/glsa/201909-01 https://usn.ubuntu.com/3625-1/ https://www.debian.org/security/2018/dsa-4172 https://www.oracle.com/security-alerts/cpujul2020.html

CVSS v3.0

Source Entity [email protected]

Severity HIGH

7.5

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v2.0

Source Entity [email protected]

Severity MEDIUM

5.0

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:L/Au:N/C:P/I:N/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2018-6798 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

June 17, 2026 MODIFIED

Vulnerability data updated via NVD.

November 21, 2024 MODIFIED

Vulnerability data or affected products updated.

April 17, 2018 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK

Complexity LOW

Privileges N/A

Interaction NONE

CVSS Vector String


                                    CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected Stack

No specific products linked.