CVE-2023-35001
A public proof of concept exists; no exploitation attested.
- Published2023-07-05
- Fixed in6.4.4 · 6.1.39 · 5.15.121 · 5.10.188 · 5.4.251 · 4.14.322
- WeaknessCWE-787
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
Linux Kernel nftables Out-Of-Bounds Read/Write Vulnerability; nft_byteorder poorly handled vm register contents when CAP_NET_ADMIN is in any user or network namespace
Timeline
dates in UTC- 2023-07-0519:15CVE publishedNVD
- 2026-10-2319:23First public proof of conceptPoC-in-GitHub
Observed activity
isMalicious corpus · updated 2026-10-23 18:48 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-35001?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-35001?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 6.x | ≥ 6.2, < 6.4.4 | 6.4.4 | NVD |
| 6.1 | ≥ 5.16, < 6.1.39 | 6.1.39 | NVD |
| 5.x | ≥ 5.11, < 5.15.121 | 5.15.121 | NVD |
| 5.x | ≥ 5.5, < 5.10.188 | 5.10.188 | NVD |
| 5.4 | ≥ 4.20, < 5.4.251 | 5.4.251 | NVD |
| 4.14 | ≥ 3.13, < 4.14.322 | 4.14.322 | NVD |
| 4.x | ≥ 4.15, ≤ 4.19.291 | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 37.x | = 37 | no fix published | NVD |
| 38.x | = 38 | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 11.0 | = 11.0 | no fix published | NVD |
5 more products in the sources.
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Fix
- Update Linux linux kernel to 6.4.4 · 6.1.39 · 5.15.121 · 5.10.188 · 5.4.251 · 4.14.322
Advisories and patches
- lists.debian.orgPatch
- lore.kernel.orgPatch · Vendor Advisory
Detection
read 2026-10-23 19:23 UTC- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- 3 repositories, unverifiedsynacktiv/CVE-2023-35001syedhafiz1234/nftables-oob-read-write-exploit-CVE-2023-35001-mrbrelax/Exploit_CVE-2023-35001 PoC-in-GitHub
Sources
- CNACVSS 3.17.8read 2026-10-23
- NVDCVSS 3.17.8read 2026-10-23
- CNAweakness (CWE)CWE-787read 2026-10-23
- NVDweakness (CWE)CWE-787read 2026-10-23
- FIRST EPSSEPSS score1.5 %2026-10-22
- PoC-in-GitHubproof of concept3read 2026-10-23
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Published
- 2023-07-05
- Last Modified
- 2026-10-15
- NVD status
- Modified
Frequently asked questions
What is CVE-2023-35001?
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What is the CVSS score for CVE-2023-35001?
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.