CVE-2022-2586
Confirmed PUBLISHEDIt was discovered that a nft object or expression could reference a nft set on a different nft table, leading to a use-after-free once that table...
Recommended Action
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
At a Glance
It was discovered that a nft object or expression could reference a nft set on a different nft table, leading to a use-after-free once that table was deleted.
- CVE Published
- Jan 08, 2024
- Exploitation Reported
- Jun 26, 2024
- CVSS
- 5.3 Medium
- EPSS
- —
Affected Versions
| Vendor | Product | Version | Status |
|---|---|---|---|
| linux |
linux_kernel
|
0 to < 6.0-rc1 |
Affected |
| The Linux Kernel Organization |
linux
linux |
0 to < 6.0~rc1 |
Affected |
CVE References
- Third-Party Advisory — ubuntu.com ubuntu.com · Third-Party Advisory https://ubuntu.com/security/notices/USN-5564-1
- Third-Party Advisory — ubuntu.com ubuntu.com · Third-Party Advisory https://ubuntu.com/security/notices/USN-5560-2
- Third-Party Advisory — ubuntu.com ubuntu.com · Third-Party Advisory https://ubuntu.com/security/notices/USN-5582-1
- Third-Party Advisory — ubuntu.com ubuntu.com · Third-Party Advisory https://ubuntu.com/security/notices/USN-5567-1
- Third-Party Advisory — ubuntu.com ubuntu.com · Third-Party Advisory https://ubuntu.com/security/notices/USN-5560-1
Show 8 more references
- Third-Party Advisory — ubuntu.com ubuntu.com · Third-Party Advisory https://ubuntu.com/security/notices/USN-5566-1
- Third-Party Advisory — ubuntu.com ubuntu.com · Third-Party Advisory https://ubuntu.com/security/notices/USN-5565-1
- Third-Party Advisory — ubuntu.com ubuntu.com · Third-Party Advisory https://ubuntu.com/security/notices/USN-5562-1
- Third-Party Advisory — ubuntu.com ubuntu.com · Third-Party Advisory https://ubuntu.com/security/notices/USN-5557-1
- OSS-Security Mailing List openwall.com · Issue Tracking https://www.openwall.com/lists/oss-security/2022/08/09/5
- Issue Tracking — zerodayinitiative.com zerodayinitiative.com · Issue Tracking https://www.zerodayinitiative.com/advisories/ZDI-22-1118/
- Issue Tracking — lore.kernel.org lore.kernel.org · Issue Tracking https://lore.kernel.org/netfilter-devel/20220809170148.164591-1-casca...
- Issue Tracking — cve.mitre.org cve.mitre.org · Issue Tracking https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2586
Recommended Actions
- Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
- Check enrichment artifacts for scanner coverage and available PoCs before rolling remediation validation.
- Use the Pro API to automate enrichment, telemetry, and workflow delivery for VM, SOC, and CTI pipelines.
Known Exploited Vulnerability Sources
Catalogues that list this CVE as a known exploited vulnerability.
Per-source evidence links for KEV attestations are available through the KEVIntel Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CISA First | 2024-06-26 00:00 UTC |
No detection artifacts or sensor request patterns are available for this CVE yet.
Check back as sensor telemetry and scanner integrations are updated.
Virtual Patch
Compensating WAF rules to help reduce exposure to this CVE. Rule content and deployable vendor exports are available with KEVIntel Enterprise.
KEVIntel does not currently have a virtual patch for this CVE. When available, KEVIntel virtual patches ship as deployable ModSecurity, Cloudflare, and AWS WAF rules.
Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to KEVIntel Enterprise users.
CVSS Scores
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H
Exploitation Status
Exploited in the wild
Recorded 2024-06-26 00:00:00 UTC · CISA
Proof of concept available
Recorded 2022-09-03 19:04:31 UTC · GitHub
Weaknesses (CWE)
-
Use After Free
Scanner Integrations
| Scanner | Reference | Detected |
|---|---|---|
| Nessus | https://www.tenable.com/plugins/nessus/236648 | Jun 02, 2025 |
Potential Proof of Concepts
These PoCs are unverified and could contain malware. Use at your own risk.
github · Created 2022-11-06 07:34:32 UTC · 3 stars
gcc exploit.c -o exploit -lmnl -lnftnl -no-pie -lpthread
github · Created 2022-09-03 19:04:31 UTC · 16 stars
CVE-2022-2586: Linux kernel nft_object UAF
Timeline
Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.
-
09:26 UTC about 1 year ago09:26 UTC · about 1 year ago
Nessus plugin available
Scanner coverage available
-
00:00 UTC about 2 years ago00:00 UTC · about 2 years ago
Added to CISA KEV
Listed in the CISA Known Exploited Vulnerabilities catalog
-
17:46 UTC over 2 years ago17:46 UTC · over 2 years ago
CVE published
Vulnerability disclosed publicly
-
19:04 UTC almost 4 years ago19:04 UTC · almost 4 years ago
Public PoC available
Public proof-of-concept code published
-
22:01 UTC almost 4 years ago22:01 UTC · almost 4 years ago
CVE ID reserved
Identifier reserved by the CNA
Automate This Intelligence with the Pro API
Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
Pro API Example
GET /api/v2/pro/kevs/CVE-2022-2586
{
"cve_id": "CVE-2022-2586",
"title": "It was discovered that a nft object or expression could reference a nft set o...",
"affected_vendor": "The Linux Kernel Organization",
"affected_product": "linux",
"affected_versions": [
{ "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
],
"confidence": "Confirmed",
"cvss_score": 5.3,
"epss_score": null,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}