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CVE-2018-18314
Perl before 5.26.3 has a buffer overflow via a crafted regular expression that triggers invalid write operations.
- 9.8CriticalCVSS base score
- 6.1%Exploitation in 30 daysEPSS · top 6.6% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Perl before 5.26.3 has a buffer overflow via a crafted regular expression that triggers invalid write operations.
Timeline
ID reserved
By mitre
- 54 days later
· 54 days later
Published
- 6 years later
· 6 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Critical9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 6.1% · top 6.6% of all CVEs (10 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Affected products
n/a
- affected n/a
References
14
- DSA-4347 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 106145 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 1042181 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- RHSA-2019:0010 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- FEDORA-2018-9dbe983805 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- RHSA-2019:0001 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- USN-3834-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- GLSA-201909-01 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- https://www.oracle.com/security-alerts/cpujul2020.html (opens in a new tab)x_refsource_MISCx_transferred
- https://security.netapp.com/advisory/ntap-20190221-0003/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://metacpan.org/changes/release/SHAY/perl-5.26.3 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/Perl/perl5/commit/19a498a461d7c81ae3507c450953d1148efecf4f (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=1646751 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://rt.perl.org/Ticket/Display.html?id=131649 (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2018-10047 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2018-18314)Record last updated .