Out-of-bounds Read in Jonasbn Crypt::openssl::pkcs12
CVE-2026-9265
Crypt::OpenSSL::PKCS12 versions before 1.96 for Perl permits a heap OOB read in print_attribute UTF8STRING path. print_attribute() copies a UTF8STRING ASN.1 attribute value into a heap buffer sized exactly to its declared length via strncpy, leaving no NUL terminator. Downstream callers run strlen() on the result and pass the inflated length to newSVpvn(), copying attacker-influenced adjacent heap bytes into a Perl scalar.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.
EPSS exploit prediction
EPSS: 0.006 (48.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 48.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Jonasbn Crypt::openssl::pkcs12 — versions 0
Weakness classification (CWE)
References
- 9b29abf9-4ab0-4765-b253-1875cd9b441e (issue-tracking)
- 9b29abf9-4ab0-4765-b253-1875cd9b441e (release-notes)
- 9b29abf9-4ab0-4765-b253-1875cd9b441e (patch)
Frequently asked questions
- What is CVE-2026-9265?
- CVE-2026-9265 is a critical-severity vulnerability in Jonasbn Crypt::openssl::pkcs12, classified under Out-of-bounds Read. CVSS score: 9.1/10. Published 2026-06-20.
- How severe is CVE-2026-9265?
- Critical severity. CVSS v3 base score is 9.1 out of 10.