- 4.7MediumCVSS base score
- 0.19%Exploitation in 30 daysEPSS · top 92% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: tcp: Fix a data-race around sysctl_tcp_notsent_lowat. While reading sysctl_tcp_notsent_lowat, it can be changed concurrently. Thus, we need to add READ_ONCE() to its reader.
Timeline
ID reserved
By Linux
Published
- 15 months later
· 15 months 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 |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Medium4.7 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | Medium4.7 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.19% · top 92% of all CVEs (11 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: Medium 4.7.
Affected products
- affected c9bee3b7fdecb0c1d070c7b54113b3bdfb9a3d36 – < 91e21df688f8a75255ca9c459da39ac96300113a
- affected c9bee3b7fdecb0c1d070c7b54113b3bdfb9a3d36 – < c1b85c5a34294f7444c13bf828e0e84b0a0eed85
- affected c9bee3b7fdecb0c1d070c7b54113b3bdfb9a3d36 – < 0f75343584ee474303e17efe0610bdd170af1d13
- affected c9bee3b7fdecb0c1d070c7b54113b3bdfb9a3d36 – < e9362a993886613ef0284c2a4911c6017c97d803
- affected c9bee3b7fdecb0c1d070c7b54113b3bdfb9a3d36 – < fd6f1284e380c377932186042ff0b5c987fb2b92
- affected c9bee3b7fdecb0c1d070c7b54113b3bdfb9a3d36 – < 80d4d0c461674eea87f0977e12a2ecd334b9b79c
- affected c9bee3b7fdecb0c1d070c7b54113b3bdfb9a3d36 – < 62e56cfeb2ae4b53ae9ca24c80f54093250ce64a
- affected c9bee3b7fdecb0c1d070c7b54113b3bdfb9a3d36 – < 55be873695ed8912eb77ff46d1d1cadf028bd0f3
- affected 3.12
- unaffected < 3.12
- unaffected 4.9.325 – ≤ 4.9.*
- unaffected 4.14.290 – ≤ 4.14.*
- unaffected 4.19.254 – ≤ 4.19.*
- unaffected 5.4.208 – ≤ 5.4.*
- unaffected 5.10.134 – ≤ 5.10.*
- unaffected 5.15.58 – ≤ 5.15.*
- unaffected 5.18.15 – ≤ 5.18.*
- unaffected 5.19 – ≤ *
References
References8
- https://git.kernel.org/stable/c/91e21df688f8a75255ca9c459da39ac96300113a (opens in a new tab)
- https://git.kernel.org/stable/c/c1b85c5a34294f7444c13bf828e0e84b0a0eed85 (opens in a new tab)
- https://git.kernel.org/stable/c/0f75343584ee474303e17efe0610bdd170af1d13 (opens in a new tab)
- https://git.kernel.org/stable/c/e9362a993886613ef0284c2a4911c6017c97d803 (opens in a new tab)
- https://git.kernel.org/stable/c/fd6f1284e380c377932186042ff0b5c987fb2b92 (opens in a new tab)
- https://git.kernel.org/stable/c/80d4d0c461674eea87f0977e12a2ecd334b9b79c (opens in a new tab)
- https://git.kernel.org/stable/c/62e56cfeb2ae4b53ae9ca24c80f54093250ce64a (opens in a new tab)
- https://git.kernel.org/stable/c/55be873695ed8912eb77ff46d1d1cadf028bd0f3 (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)
- EUVD EUVD-2022-54645 (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://cveledger.app/cve/CVE-2022-49587)Record last updated .