Potential buffer overflow in ns_sprintrrf TSIG handling path

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

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.

Source published

28 Apr 2026 11:58:54 UTC

Source modified

15 Oct 2026 01:12:12 UTC

Observed here

23 Oct 2026 15:48:27 UTC

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