Status: UPDATED
| Advisory ID: CVE-2026-5435
Key Details
| CVE | CVE-2026-5435 |
| CVSS Score / Version | 7.3 (High) / CVSS v3.1 |
| Updated | 2026-07-14 |
| CVSS Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |
| CVSS Prose | attack vector is network; attack complexity is low; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is low; integrity impact is low; availability impact is low. |
| Affected products | Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP, Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP, Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP, and The GNU C Library glibc |
| Classified as | CWE-787 (Out-of-bounds Write) |
Affected Products, Subsystems & Sectors
| Subsystems | General OT |
| Sectors | Multiple |
What to Know
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.
What to Do
Monitor Siemens's and The GNU C Library's web pages for any future patch releases.
References