CVE-2018-6798
HIGH · CVSS 7.5EPSS 3.9%EU EUVD
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.
Key facts
- CVSS score
- 7.5 (v3.0)
- Severity
- HIGH
- CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N- Weakness (CWE)
- CWE-125
- EPSS score
- 3.9% (90th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2018-18545)
- Published
- April 17, 2018
- NVD last modified
- June 17, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2018-18545 in the EU Vulnerability Database. Last updated in EUVD on August 5, 2024.
View on the EU Vulnerability DatabaseAffected products
- canonical / ubuntu linux
- canonical / ubuntu linux
- canonical / ubuntu linux
- debian / debian linux
- debian / debian linux
- debian / debian linux
- perl / perl
- redhat / enterprise linux server
- redhat / enterprise linux server
- redhat / enterprise linux server
- redhat / enterprise linux server
- redhat / enterprise linux server
- redhat / enterprise linux workstation
- redhat / enterprise linux workstation
Certified products that may be affected
1 FIPS 140 or Common Criteria certified product, from automated matching by sec-certs.org.
- Red Hat Enterprise Linux 7 OpenSSH Server Cryptographic Module - Red Hat®, Inc. - FIPS 140 3891 - historical
References
- http://www.securitytracker.com/id/1040681(Third Party Advisory, VDB Entry)
- https://access.redhat.com/errata/RHSA-2018:1192(Third Party Advisory)
- https://rt.perl.org/Public/Bug/Display.html?id=132063(Vendor Advisory)
- https://security.gentoo.org/glsa/201909-01
- https://usn.ubuntu.com/3625-1/(Third Party Advisory)
- https://www.debian.org/security/2018/dsa-4172(Third Party Advisory)
- https://www.oracle.com/security-alerts/cpujul2020.html
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
Query CVEs from your AI assistant
The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.
Add the CVE brain