CVE-2024-36903ipv6: Fix potential uninit-value access in __ip6_make_skb()
- 5.5MediumCVSS base score
- 0.24%Exploitation in 30 daysEPSS · top 85% 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 potential uninit-value access in __ip6_make_skb() As it was done in commit fc1092f51567 ("ipv4: Fix uninit-value access in __ip_make_skb()") for IPv4, check FLOWI_FLAG_KNOWN_NH on fl6->flowi6_flags instead of testing HDRINCL on the socket to avoid a race condition which causes uninit-value access.
Timeline
ID reserved
By Linux
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 | 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)
- 0.24% · top 85% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 605b056d63302ae84eb136e88d4df49124bd5e0d – < 59d74c843ebf46264c7903726cf6f2673a93b07a
- affected d65ff2fe877c471aa6e79efa7bd8ff66e147c317 – < 40e5444a3ac315b60e94d82226b73cd82145d09e
- affected 2c9cefc142c1dc2759e19a92d3b2b3715e985beb – < a05c1ede50e9656f0752e523c7b54f3a3489e9a8
- affected ea30388baebcce37fd594d425a65037ca35e59e8 – < 68c8ba16ab712eb709c6bab80ff151079d11d97a
- affected ea30388baebcce37fd594d425a65037ca35e59e8 – < 2367bf254f3a27ecc6e229afd7a8b0a1395f7be3
- affected ea30388baebcce37fd594d425a65037ca35e59e8 – < 4e13d3a9c25b7080f8a619f961e943fe08c2672c
- affected 165370522cc48127da564a08584a7391e6341908
- affected f394f690a30a5ec0413c62777a058eaf3d6e10d5
- affected 0cf600ca1bdf1d52df977516ee6cee0cadb1f6b1
- affected 02ed5700f40445af02d1c97db25ffc2d04971d9f
- affected 5.10.178 – < 5.10.248
- affected 5.15.107 – < 5.15.198
- affected 6.1.24 – < 6.1.140
- affected 4.14.313 – < 4.15
- affected 4.19.281 – < 4.20
- affected 5.4.241 – < 5.5
- affected 6.2.11 – < 6.3
- affected 6.3
- unaffected < 6.3
- unaffected 5.10.248 – ≤ 5.10.*
- unaffected 5.15.198 – ≤ 5.15.*
- unaffected 6.1.140 – ≤ 6.1.*
- unaffected 6.6.31 – ≤ 6.6.*
- unaffected 6.8.10 – ≤ 6.8.*
- unaffected 6.9 – ≤ *
References
References9
- https://git.kernel.org/stable/c/59d74c843ebf46264c7903726cf6f2673a93b07a (opens in a new tab)
- https://git.kernel.org/stable/c/40e5444a3ac315b60e94d82226b73cd82145d09e (opens in a new tab)
- https://git.kernel.org/stable/c/a05c1ede50e9656f0752e523c7b54f3a3489e9a8 (opens in a new tab)
- https://git.kernel.org/stable/c/68c8ba16ab712eb709c6bab80ff151079d11d97a (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/2367bf254f3a27ecc6e229afd7a8b0a1395f7be3 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/4e13d3a9c25b7080f8a619f961e943fe08c2672c (opens in a new tab)x_transferred
- https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html (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-2024-36254 (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-2024-36903)Record last updated .