CVE-2017-12883: Buffer overflow in the S_grok_bslash_N function in regcomp.c in Perl 5 before 5.24.3-RC1 and 5.26.x before...

Security readout for executives and security teams

CVE-2017-12883 is a Perl regular-expression parsing flaw. A crafted regular expression using an invalid \N{U+...} escape can trigger a buffer overflow, potentially crashing the application or exposing sensitive information. Business urgency depends on whether systems accept or generate untrusted regular expressions. Exposure is most plausible in services, scripts, or products using vulnerable Perl runtimes while compiling attacker-controlled or externally supplied regular expressions. The provided affected-product metadata is incomplete, so product-level exposure should be verified through local inventory and vendor advisories. Treat this as a targeted remediation item, not an emergency unless untrusted regex input is exposed. Patch vulnerable Perl packages during normal security maintenance, escalating systems where regex patterns come from external users or tenants. Mitigation focus: Upgrade Perl through vendor security packages or fixed upstream releases.; Check Debian, Red Hat, Oracle, NetApp, and local vendor guidance for affected builds.; Identify and restrict features that compile untrusted regular expressions..

Prepared

Jun 12, 2026, 20:56 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.