CVE-2026-5435

UNKNOWN 0.0

Potential buffer overflow in ns_sprintrrf TSIG handling path

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-787
Vendor	the gnu c library
Product	glibc
Published	Apr 28, 2026

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Affected Versions

The GNU C Library / glibc

2.2 ≤ *

References

NVD ↗ CVE.org ↗ EPSS Data ↗

sourceware.org: https://sourceware.org/bugzilla/show_bug.cgi?id=34033 inbox.sourceware.org: https://inbox.sourceware.org/libc-announce/[email protected]/T/#u

Credits

shinobu