CVE-2026-64193

Katalog CVE

CVSS 9.8 · Critical EPSS 1,4%

Kerentanan Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection'). Skor CVSS 3.1 9.8 (Critical) menurut CISA ADP.

Deskripsi (NVD)

Net::DNS versions through 1.55 for Perl allow remote execution injection via EDNS EXTENDED ERROR. Net::DNS::RR::OPT::EXTENDED_ERROR::_decompose parses the EXTRA-TEXT field of an EDNS EXTENDED-ERROR option (RFC 8914) by tokenising the raw bytes and passing the result to Perl's eval. There is some escaping done for $ and @, but not for backticks. This can be exploited for command execution if $pkt->edns->option('EXTENDED-ERROR') is called in array context, for example with a payload of {0:`"<command>"`} in EXTRA-TEXT.

Rincian

Terbit di NVD

20 Juli 2026

Terakhir diubah

21 Juli 2026

Status NVD

Deferred

CVSS 3.1

9.8 (Critical), sumber CISA ADP
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-95: Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')

EPSS (30 hari)

1,4% peluang dieksploitasi; lebih tinggi dari 72,4% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://metacpan.org/release/NLNETLABS/Net-DNS-1.55_01/changes
• https://rt.cpan.org/Ticket/Display.html?id=179945
• https://www.net-dns.org/blog/#release-candidate-for-netdns-1.56
• http://www.openwall.com/lists/oss-security/2026/07/20/12