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-2019-20795

CVE-2019-20795MEDIUM

n/a n/a — iproute2 before 5.1.0 has a use-after-free in get_netnsid_from_name in ip/ipnetns.c.

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   H   N  U  N  N  H    4.4   .0040   33.0     —

AFFECTED
  Product  Versions  Fixed
  n/a      n/a –     —

TIMELINE
  May 9   Reserved by mitre
  May 9   Published (CNA: mitre)
  Oct 14  ENRICHED — CVE-2019-20795. Received CVSS 4.4 and CPE data from NVD.

CWE-416 · CNA: mitre · CVSS v3.1 · 5 references · NVD status: Modified

Description

iproute2 before 5.1.0 has a use-after-free in get_netnsid_from_name in ip/ipnetns.c. NOTE: security relevance may be limited to certain uses of setuid that, although not a default, are sometimes a configuration option offered to end users. Even when setuid is used, other factors (such as C library configuration) may block exploitability.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
May 9, 2020	Reserved	Reserved by mitre
May 9, 2020	Published	Published (CNA: mitre)
October 14, 2026	ENRICHED	ENRICHED — CVE-2019-20795. Received CVSS 4.4 and CPE data from NVD.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
n/a	n/a	—	n/a	—

Weaknesses

CWE-416

References (5)

https://bugzilla.suse.com/show_bug.cgi?id=1171452 [Issue Tracking, Third Party Advisory]
https://cert-portal.siemens.com/productcert/html/ssa-398330.html
https://git.kernel.org/pub/scm/network/iproute2/iproute2.git/commit/?id=9bf2c538a0eb10d66e2365a655bf6c52f5ba3d10 [Patch, Third Party Advisory]
https://security.gentoo.org/glsa/202008-06 [Third Party Advisory]
https://usn.ubuntu.com/4357-1/ [Third Party Advisory]

Authoritative record: CVE-2019-20795 at cve.org

Weaknesses: CWE-416

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2019-20795 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.