VDB
CVE-2026-23298
CVE-2026-23298
PUBLISHED
CVSS 5.5 MEDIUM
In the Linux kernel, the following vulnerability has been resolved: can: ucan: Fix infinite loop from zero-length messages If a broken ucan device gets a message with the message length field set to 0, then the driver will loop for forever in ucan_read_bulk_callback(), hanging the system. If the length is 0, just skip the message and go on to the next one. This has been fixed in the kvaser_usb driver in the past in commit 0c73772cd2b8 ("can: kvaser_usb: leaf: Fix potential infinite loop in command parsers"), so there must be some broken devices out there like this somewhere.
EPSS 0.03% · 9.5th percentile
Risk Scores
CVSS 3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Score
0.03%
9.5th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | 7.0, 6.19.7, * |
| linux | linux_kernel | 4.19, 4.19, 4.19 |
Exploit Intelligence
- CIRCL seen: CVE-2026-23298 (circl-sighting)
- CIRCL seen: CVE-2026-23298 (circl-sighting)
- CIRCL seen: CVE-2026-23298 (circl-sighting)
- https://git.kernel.org/stable/c/ca07d3c6eef14d34e6fdeefe55058db045be29dc (circl)
- https://git.kernel.org/stable/c/e7bb6e0606b5f233531aaaad9542d69fbb792115 (circl)
- https://git.kernel.org/stable/c/ab6f075492d37368b4c7b0df7f7fdc2b666887fc (circl)
- https://git.kernel.org/stable/c/13b646eec3ba1131180803f5aaf1fee23540ad8f (circl)
- https://git.kernel.org/stable/c/bd85f21a6219aeae4389d700c54f1799f4b814e0 (circl)
- https://git.kernel.org/stable/c/aa9e0a7fe5efc2f74327fd37d828e9a51d9ff588 (circl)
- https://git.kernel.org/stable/c/c7bc62be6c1a60bb21301692009590b1ffda91d9 (circl)
…and 16 more exploits
Timeline
- Mar 25, 2026 EPSS Score
- Mar 25, 2026 Coalition ESS Score
- Mar 25, 2026 CVE Published
- Mar 29, 2026 Security Advisory
- Mar 29, 2026 PoC Published
- Mar 31, 2026 Security Advisory
- Mar 31, 2026 Security Advisory
- Mar 31, 2026 Security Advisory
- Mar 31, 2026 Security Advisory
- Mar 31, 2026 Security Advisory
- Mar 31, 2026 Security Advisory
- Mar 31, 2026 Security Advisory
References
- https://git.kernel.org/stable/c/ab6f075492d37368b4c7b0df7f7fdc2b666887fc url
- https://git.kernel.org/stable/c/13b646eec3ba1131180803f5aaf1fee23540ad8f url
- https://git.kernel.org/stable/c/bd85f21a6219aeae4389d700c54f1799f4b814e0 url
- https://git.kernel.org/stable/c/aa9e0a7fe5efc2f74327fd37d828e9a51d9ff588 url
- https://git.kernel.org/stable/c/c7bc62be6c1a60bb21301692009590b1ffda91d9 url
- https://git.kernel.org/stable/c/1e446fd0582ad8be9f6dafb115fc2e7245f9bea7 url
- https://nvd.nist.gov/vuln/detail/CVE-2026-23298 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32748 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-4438 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23347 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23268 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23392 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23319 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23253 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23296 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23364 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23368 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27654 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-30922 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23286 advisory
…and 135 more