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CVE-2022-49577
udp: Fix a data-race around sysctl_udp_l3mdev_accept.
Medium4.7EPSS 0.18%
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: udp: Fix a data-race around sysctl_udp_l3mdev_accept. While reading sysctl_udp_l3mdev_accept, 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)
- 0.18% · top 92% of all CVEs (7 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.
Weakness
Affected products
- affected 63a6fff353d01da5a22b72670c434bf12fa0e3b8 – < f39b03bd727a8fea62e82f10fe2e0d753b9930ff
- affected 63a6fff353d01da5a22b72670c434bf12fa0e3b8 – < fcaef69c79ec222e55643e666b80b221e70fa6a8
- affected 63a6fff353d01da5a22b72670c434bf12fa0e3b8 – < 3f2ac2d6511bb0652abf4d7388d65bb9ff1c641c
- affected 63a6fff353d01da5a22b72670c434bf12fa0e3b8 – < cb0d28934ca10f99c47e2c6f451405d6c954fe48
- affected 63a6fff353d01da5a22b72670c434bf12fa0e3b8 – < 3d72bb4188c708bb16758c60822fc4dda7a95174
- affected 4.11
- unaffected < 4.11
- 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 (5)
- https://git.kernel.org/stable/c/f39b03bd727a8fea62e82f10fe2e0d753b9930ff (opens in a new tab)
- https://git.kernel.org/stable/c/fcaef69c79ec222e55643e666b80b221e70fa6a8 (opens in a new tab)
- https://git.kernel.org/stable/c/3f2ac2d6511bb0652abf4d7388d65bb9ff1c641c (opens in a new tab)
- https://git.kernel.org/stable/c/cb0d28934ca10f99c47e2c6f451405d6c954fe48 (opens in a new tab)
- https://git.kernel.org/stable/c/3d72bb4188c708bb16758c60822fc4dda7a95174 (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-2022-49577)Record last updated .