Reference page — cumulative record through Saturday, October 3, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2026-93337
nm-l2tp NetworkManager-l2tp — NetworkManager-l2tp Privilege Escalation via pppd Plugin Injection
AV AC AT PR UI VC VI VA CVSS EPSS %ile KEV
L L N L N H H H 8.5 .0015 3.5 —
AFFECTED
Product Versions Fixed
NetworkManager-l2tp unspecified 1.52.6
TIMELINE
Sep 17 Reserved by VulnCheck
Sep 17 Published (CNA: VulnCheck)
Sep 23 PATCH SHIPPED — CVE-2026-93337 (nm-l2tp NetworkManager-l2tp). Fixed in NetworkManager-l2tp 1.52.6.
Description
NetworkManager-l2tp through 1.52.4, fixed in 1.52.6, contains an improper input validation vulnerability that allows local users with VPN connection creation permissions to inject arbitrary pppd directives by supplying mru or mtu property values containing trailing non-numeric content after a valid integer. Attackers can exploit the verbatim write of unvalidated strings into the pppd options file via write_config_option() to inject the plugin directive, causing the privileged pppd process to load an attacker-controlled shared object and achieve arbitrary code execution as root.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
|---|
| September 17, 2026 | Reserved | Reserved by VulnCheck |
| September 17, 2026 | Published | Published (CNA: VulnCheck) |
| September 23, 2026 | PATCH SHIPPED | PATCH SHIPPED — CVE-2026-93337 (nm-l2tp NetworkManager-l2tp). Fixed in NetworkManager-l2tp 1.52.6. |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| nm-l2tp | NetworkManager-l2tp | — | — | 1.52.6 |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-93337 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 Saturday, October 3, 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.
