CVE-2026-5435

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.

Score

CVSS 3.1 7.3 High

Status

Modified - 3ff69d7a-14f2-4f67-a097-88dee7810d18

Published

2026-04-28

Last modified

2026-10-15

Weaknesses

CWE-787

Affected products

• Glibc (Gnu)
• Simatic S7-1500 Cpu 1518-4 Pndp Mfp (Siemens)
• Simatic S7-1500 Cpu 1518f-4 Pndp Mfp (Siemens)
• Siplus S7-1500 Cpu 1518-4 Pndp Mfp (Siemens)
• Glibc (The Gnu C Library)

References

• https://inbox.sourceware.org/libc-announce/7a655d55-276f-41fe-b550-feb3ebb2ce91@redhat.com/T/#u
• https://sourceware.org/bugzilla/show_bug.cgi?id=34033
• https://cert-portal.siemens.com/productcert/html/ssa-082556.html