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CVE-2026-45847net: remove WARN_ON_ONCE when accessing forward path array
- 5.5MediumCVSS base score
- 0.16%Exploitation in 30 daysEPSS · top 95% 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: net: remove WARN_ON_ONCE when accessing forward path array Although unlikely, recent support for IPIP tunnels increases chances of reaching this WARN_ON_ONCE if userspace manages to build a sufficiently long forward path. Remove it.
Timeline
ID reserved
By Linux
- 14 days later
· 14 days later
Published
- 5 months later
· 5 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 |
|---|---|---|---|
| NVDNVD · Analyzed | 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)
- 0.16% · top 95% 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 ddb94eafab8b597b05904c8277194ea2d6357fa9 – < 548244c2f542aa0ad49453e9306e715a3877bc44
- affected ddb94eafab8b597b05904c8277194ea2d6357fa9 – < dcf9b3c90e5560339649d088836529883fb509f3
- affected ddb94eafab8b597b05904c8277194ea2d6357fa9 – < 9464ca7a6e56ad1ebf48b2ad5c16871edfad10c6
- affected ddb94eafab8b597b05904c8277194ea2d6357fa9 – < 959ea349c7e2d4edf07b6838ca7e59345fe61a08
- affected ddb94eafab8b597b05904c8277194ea2d6357fa9 – < 50422613185d505201167e8bdd2f2700790d5db6
- affected ddb94eafab8b597b05904c8277194ea2d6357fa9 – < a78d055ba7c31103ad02f8eceb0c452e154d2660
- affected ddb94eafab8b597b05904c8277194ea2d6357fa9 – < 008e7a7c293b30bc43e4368dac6ea3808b75a572
- affected 5.13
- unaffected < 5.13
- unaffected 5.15.202 – ≤ 5.15.*
- unaffected 6.1.165 – ≤ 6.1.*
- unaffected 6.6.128 – ≤ 6.6.*
- unaffected 6.12.75 – ≤ 6.12.*
- unaffected 6.18.14 – ≤ 6.18.*
- unaffected 6.19.4 – ≤ 6.19.*
- unaffected 7.0 – ≤ *
References
References7
- https://git.kernel.org/stable/c/548244c2f542aa0ad49453e9306e715a3877bc44 (opens in a new tab)
- https://git.kernel.org/stable/c/dcf9b3c90e5560339649d088836529883fb509f3 (opens in a new tab)
- https://git.kernel.org/stable/c/9464ca7a6e56ad1ebf48b2ad5c16871edfad10c6 (opens in a new tab)
- https://git.kernel.org/stable/c/959ea349c7e2d4edf07b6838ca7e59345fe61a08 (opens in a new tab)
- https://git.kernel.org/stable/c/50422613185d505201167e8bdd2f2700790d5db6 (opens in a new tab)
- https://git.kernel.org/stable/c/a78d055ba7c31103ad02f8eceb0c452e154d2660 (opens in a new tab)
- https://git.kernel.org/stable/c/008e7a7c293b30bc43e4368dac6ea3808b75a572 (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-2026-32313 (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-2026-45847)Record last updated .