CVE•Published 2020-06-05•Modified 2026-10-14•1 article on news•5 live references•NVD data
CVE-2020-10878Perl · Perl
Vulnerability data via NVD (ingested)
CVSS v3.1
8.6
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
EPSS percentile
92
Exploit Prediction Scoring System · top 8% of all CVEs
Weaknesses (CWE)
Description
Perl before 5.30.3 has an integer overflow related to mishandling of a "PL_regkind[OP(n)] == NOTHING" situation. A crafted regular expression could lead to malformed bytecode with a possibility of instruction injection.
Timeline
Published 2020-06-05
Modified 2026-10-14
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag82,421 hosts
vuln:CVE-2020-10878Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Perl Perl"All exposed Perl Perl instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Perl"HTTP body or banner mentions "Perl" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2020-10878Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2020-10878Censys host search filtered to this CVE id.
grep.app
CVE-2020-10878Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2020-10878GitHub code search for direct mentions.
Google dork
"CVE-2020-10878" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.