A vulnerability was found in Linux Kernel up to 7.0.9. It has been declared as critical. This vulnerability affects unknown code of the component tty. Such manipulation of the argument hvc_iucv_table[] leads to off-by-one. This vulnerability is documented as CVE-2026-53306. The attack requires being on the local network. There is not any exploit available. It is recommended to upgrade the affected component.
| Vendor | Product | Versions |
|---|---|---|
| linux | linux_kernel | 44a01d5ba8a4d543694461cd3e178cfa6b3f221b, 44a01d5ba8a4d543694461cd3e178cfa6b3f221b, 44a01d5ba8a4d543694461cd3e178cfa6b3f221b, 44a01d5ba8a4d543694461cd3e178cfa6b3f221b, 44a01d5ba8a4d543694461cd3e178cfa6b3f221b, 44a01d5ba8a4d543694461cd3e178cfa6b3f221b, 44a01d5ba8a4d543694461cd3e178cfa6b3f221b, 44a01d5ba8a4d543694461cd3e178cfa6b3f221b, 2.6.29, 7.0.9 |
Downstream vendors/products affected by this vulnerability
| Vendor | Product | Source | Confidence |
|---|---|---|---|
| linux | linux | mitre_affected | 90% |
| open source | open source linux kernel | cert_advisory | 90% |
Updated description with critical severity, added affected version 7.0.9, and noted that no exploit is available.
Updated description with more technical detail, added affected version 2.6.29, changed severity to HIGH, added CWE-119, and marked exploit available and actively exploited.
Initial creation
