CVE-2026-5435highCWE-787

CVE-2026-5435: high-severity vulnerability in The GNU C Library glibc

Potential buffer overflow in ns_sprintrrf TSIG handling path

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21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.3epss 0.2%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Affected products
The GNU C Library · glibc
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