Back
CVE-2022-26495
In nbd-server in nbd before 3.24, there is an integer overflow with a resultant heap-based buffer overflow. A value of 0xffffffff in the…
Critical9.8EPSS 2.9%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
In nbd-server in nbd before 3.24, there is an integer overflow with a resultant heap-based buffer overflow. A value of 0xffffffff in the name length field will cause a zero-sized buffer to be allocated for the name, resulting in a write to a dangling pointer. This issue exists for the NBD_OPT_INFO, NBD_OPT_GO, and NBD_OPT_EXPORT_NAME messages.
Timeline
Published
- 2 years later
· 2 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 2.9% · top 13% of all CVEs (7 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Weakness
Affected products
n/a
- affected n/a
References (8)
- https://lists.debian.org/nbd/2022/01/msg00037.html (opens in a new tab)x_transferred
- https://sourceforge.net/projects/nbd/files/nbd/ (opens in a new tab)x_transferred
- [debian-lts-announce] 20220310 [SECURITY] [DLA 2944-1] nbd security update (opens in a new tab)mailing-listx_transferred
- DSA-5100 (opens in a new tab)vendor-advisoryx_transferred
- FEDORA-2022-62adf9a1e0 (opens in a new tab)vendor-advisoryx_transferred
- FEDORA-2022-807e431d5f (opens in a new tab)vendor-advisoryx_transferred
- FEDORA-2022-263873fb70 (opens in a new tab)vendor-advisoryx_transferred
- GLSA-202402-10 (opens in a new tab)vendor-advisoryx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2022-26495)Record last updated .