Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2022-2588

CVE-2022-2588HIGH

The Linux Kernel Organization linux — It was discovered that the cls_route filter implementation in the Linux kernel would not remove an old filter from the hashtable before f…

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   L   N  U  H  H  H    7.8   .0587   93.1     —

AFFECTED
  Product  Versions     Fixed
  linux    unspecified  —

TIMELINE
  Jul 29  Reserved by canonical
  Jan 8   Published (CNA: canonical)
  Oct 14  EXPLOIT PUBLISHED — CVE-2022-2588 (The Linux Kernel Organization linux). Public exploit reference added.
  Oct 14  RESCORED — CVE-2022-2588 (The Linux Kernel Organization linux). CVSS 5.3 → 7.8 (NVD).

CWE-415, CWE-416 · CNA: canonical · CVSS v3.1 · 19 references · NVD status: Modified

Description

It was discovered that the cls_route filter implementation in the Linux kernel would not remove an old filter from the hashtable before freeing it if its handle had the value 0.

Lifecycle

Complete event history — 4 events, chronological
Date	Event	Detail
July 29, 2022	Reserved	Reserved by canonical
January 8, 2024	Published	Published (CNA: canonical)
October 14, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2022-2588 (The Linux Kernel Organization linux). Public exploit reference added.
October 14, 2026	RESCORED	RESCORED — CVE-2022-2588 (The Linux Kernel Organization linux). CVSS 5.3 → 7.8 (NVD).

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
The Linux Kernel Organization	linux	—	—	—

Weaknesses

CWE-415 · CWE-416

References (19)

https://cert-portal.siemens.com/productcert/html/ssa-419740.html
https://cert-portal.siemens.com/productcert/html/ssa-769027.html
https://cert-portal.siemens.com/productcert/html/ssa-794697.html
https://cert-portal.siemens.com/productcert/html/ssa-831302.html
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2588 [Third Party Advisory]
https://github.com/Markakd/CVE-2022-2588 [Exploit]
https://lore.kernel.org/netdev/20220809170518.164662-1-cascardo@canonical.com/T/#u [Mailing List, Patch]
https://ubuntu.com/security/notices/USN-5557-1 [Third Party Advisory]
https://ubuntu.com/security/notices/USN-5560-1 [Third Party Advisory]
https://ubuntu.com/security/notices/USN-5560-2 [Third Party Advisory]
https://ubuntu.com/security/notices/USN-5562-1 [Third Party Advisory]
https://ubuntu.com/security/notices/USN-5564-1 [Third Party Advisory]
https://ubuntu.com/security/notices/USN-5565-1 [Third Party Advisory]
https://ubuntu.com/security/notices/USN-5566-1 [Third Party Advisory]
https://ubuntu.com/security/notices/USN-5567-1 [Third Party Advisory]
https://ubuntu.com/security/notices/USN-5582-1 [Third Party Advisory]
https://ubuntu.com/security/notices/USN-5588-1 [Third Party Advisory]
https://www.openwall.com/lists/oss-security/2022/08/09/6 [Mailing List]
https://www.zerodayinitiative.com/advisories/ZDI-22-1117/ [Third Party Advisory, VDB Entry]

Authoritative record: CVE-2022-2588 at cve.org

Vendors: the linux kernel organization

Weaknesses: CWE-415 · CWE-416

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2022-2588 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.