CVE-2026-18374
The GNU C Library glibc
MEDIUM 4.9
En bref
- Source
- NVD
- EPSS
- EPSS 0.14 % · centile 4 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- glibc
- Statut NVD
- Awaiting Analysis
Description
Passing an effectively empty string to the `,ccs=` syntax extension of the mode argument in the `fopen` function in the GNU C Library version 2.45 or earlier may result in a heap buffer overflow when the mode string input to the function is attacker controlled. This usage pattern is not seen in applications in common GNU/Linux distributions and applications that process user-supplied values for `ccs` should not pass them through without validation.
Faiblesses (CWE)
- CWE-787 — Écriture hors limites
Références
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 4.9 | CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L | glibc |
| CVSS 3.1 | MEDIUM 4.9 | CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L | NVD · 3ff69d7a-14f2-4f67-a097-88dee7810d18 (Secondary) |
Références européennes
- ENISA EUVD · EUVD-2026-67222
- GCVE · GCVE-0-2026-18374
Avis du CERT-FR
- CERTFR-2026-AVI-1385 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
Produits affectés
| Produit | Versions |
|---|---|
| The GNU C Library · glibc | affected 0 < 2.45 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |