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CVE-2022-49280
NFSD: prevent underflow in nfssvc_decode_writeargs()
Critical9.8EPSS 0.69%
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: NFSD: prevent underflow in nfssvc_decode_writeargs() Smatch complains: fs/nfsd/nfsxdr.c:341 nfssvc_decode_writeargs() warn: no lower bound on 'args->len' Change the type to unsigned to prevent this issue.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CISA-ADPADP (enrichment) | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.69% · top 47% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
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
- affected a51b5b737a0be93fae6ea2a18df03ab2359a3f4b – < 614a61e1592051cc42d3c38f899c9f7bdaad8a1d
- affected a51b5b737a0be93fae6ea2a18df03ab2359a3f4b – < 2764af8ce0bf03cc43ee4a11897cab96bde6caae
- affected a51b5b737a0be93fae6ea2a18df03ab2359a3f4b – < 413d8fefafe531a9442bb623e3fe292a38f88d65
- affected a51b5b737a0be93fae6ea2a18df03ab2359a3f4b – < 184416d4b98509fb4c3d8fc3d6dc1437896cc159
- affected 5.12
- unaffected < 5.12
- unaffected 5.15.33 – ≤ 5.15.*
- unaffected 5.16.19 – ≤ 5.16.*
- unaffected 5.17.2 – ≤ 5.17.*
- unaffected 5.18 – ≤ *
References (4)
- https://git.kernel.org/stable/c/614a61e1592051cc42d3c38f899c9f7bdaad8a1d (opens in a new tab)
- https://git.kernel.org/stable/c/2764af8ce0bf03cc43ee4a11897cab96bde6caae (opens in a new tab)
- https://git.kernel.org/stable/c/413d8fefafe531a9442bb623e3fe292a38f88d65 (opens in a new tab)
- https://git.kernel.org/stable/c/184416d4b98509fb4c3d8fc3d6dc1437896cc159 (opens in a new tab)
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-2022-49280)Record last updated .