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CVE-2022-49727ipv6: Fix signed integer overflow in l2tp_ip6_sendmsg
- 5.5MediumCVSS base score
- 0.28%Exploitation in 30 daysEPSS · top 79% 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: ipv6: Fix signed integer overflow in l2tp_ip6_sendmsg When len >= INT_MAX - transhdrlen, ulen = len + transhdrlen will be overflow. To fix, we can follow what udpv6 does and subtract the transhdrlen from the max.
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 | 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)
- 0.28% · top 79% of all CVEs (13 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 5.5.
Affected products
- affected a32e0eec7042b21ccb52896cf715e3e2641fed93 – < 2cf73c7cb6125083408d77f43d0e84d86aed0000
- affected a32e0eec7042b21ccb52896cf715e3e2641fed93 – < 0e818d433fc2718fe4da044ffca7431812a7e04e
- affected a32e0eec7042b21ccb52896cf715e3e2641fed93 – < 6c4e3486d21173d60925ef52e512cae727b43d30
- affected a32e0eec7042b21ccb52896cf715e3e2641fed93 – < 2f42389d270f2304c8855b0b63498a5a4d0c053d
- affected a32e0eec7042b21ccb52896cf715e3e2641fed93 – < b8879ca1fd7348b4d5db7db86dcb97f60c73d751
- affected a32e0eec7042b21ccb52896cf715e3e2641fed93 – < 27a37755ceb401111ded76810359d3adc4b268a1
- affected a32e0eec7042b21ccb52896cf715e3e2641fed93 – < 034246122f5c5e2e2a0b9fe04e24517920e9beb1
- affected a32e0eec7042b21ccb52896cf715e3e2641fed93 – < f638a84afef3dfe10554c51820c16e39a278c915
- affected 3.5
- unaffected < 3.5
- unaffected 4.9.320 – ≤ 4.9.*
- unaffected 4.14.285 – ≤ 4.14.*
- unaffected 4.19.249 – ≤ 4.19.*
- unaffected 5.4.200 – ≤ 5.4.*
- unaffected 5.10.124 – ≤ 5.10.*
- unaffected 5.15.49 – ≤ 5.15.*
- unaffected 5.18.6 – ≤ 5.18.*
- unaffected 5.19 – ≤ *
References
References8
- https://git.kernel.org/stable/c/2cf73c7cb6125083408d77f43d0e84d86aed0000 (opens in a new tab)
- https://git.kernel.org/stable/c/0e818d433fc2718fe4da044ffca7431812a7e04e (opens in a new tab)
- https://git.kernel.org/stable/c/6c4e3486d21173d60925ef52e512cae727b43d30 (opens in a new tab)
- https://git.kernel.org/stable/c/2f42389d270f2304c8855b0b63498a5a4d0c053d (opens in a new tab)
- https://git.kernel.org/stable/c/b8879ca1fd7348b4d5db7db86dcb97f60c73d751 (opens in a new tab)
- https://git.kernel.org/stable/c/27a37755ceb401111ded76810359d3adc4b268a1 (opens in a new tab)
- https://git.kernel.org/stable/c/034246122f5c5e2e2a0b9fe04e24517920e9beb1 (opens in a new tab)
- https://git.kernel.org/stable/c/f638a84afef3dfe10554c51820c16e39a278c915 (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-2022-54508 (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-2022-49727)Record last updated .