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HIGHCVE-2026-5435Published Modified CNA glibc

CVE-2026-5435: Potential buffer overflow in ns_sprintrrf TSIG handling path

The deprecated functions ns_printrrf, ns_printrr and fp_nquery in the GNU C Library version 2.2 and newer fail to enforce the caller-supplied buffer length, and can result in an out-of-bounds write when printing TSIG records.

Metrics

CVSS v3.1
7.3
Severity
HIGH
Fixed in
Affected Products
1
Affected packages
  • The GNU C Library / glibc
    ≤ *
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CVE-2026-5435: Potential buffer overflow in ns_sprintrrf TSIG handling path | HarborGuard CVE