CVE•Published 2026-05-17•Modified 2026-05-18•1 article on news•6 live references•NVD data
CVE-2026-8507
Vulnerability data via NVD (ingested)
CVSS v3.1
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
—
Weaknesses (CWE)
Description
Crypt::OpenSSL::PKCS12 versions through 1.94 for Perl have out-of-bounds (OOB) write flaws. When parsing a PKCS12 file, with a >= 1 GiB OCTET STRING (or BIT STRING) attribute on a SAFEBAG, via info() or info_as_hash(), a heap out-of-bounds write would be triggered with remote-code-execution potential (RCE) due to a signed integer overflow in the size calculation passed to Renew().
Timeline
Published 2026-05-17
Modified 2026-05-18
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).
More intel sources (5)
Shodan report
vuln:CVE-2026-8507Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-8507Censys host search filtered to this CVE id.
grep.app
CVE-2026-8507Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-8507GitHub code search for direct mentions.
Google dork
"CVE-2026-8507" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-8507 on GitHub.