CVE-2026-75131 NetworkManager-l2tp Privilege Escalation via pppd Username Injection

NetworkManager-l2tp through 1.52.4, fixed in 1.52.6, contains a privilege escalation vulnerability that allows local users with permission to create VPN connections to execute arbitrary code as root by injecting pppd options through a crafted VPN username. Attackers can embed a double-quote...

CVE-2026-75131

The NetworkManager-l2tp software (through version 1.52.4) contains a privilege escalation vulnerability. A local user with permissions to create VPN connections can execute arbitrary code as root by injecting pppd options via a crafted VPN username. By embedding a double-quote character or whites...

CVE-2026-75131 NetworkManager-l2tp Privilege Escalation via pppd Username Injection

NetworkManager-l2tp through 1.52.4, fixed in 1.52.6, contains a privilege escalation vulnerability that allows local users with permission to create VPN connections to execute arbitrary code as root by injecting pppd options through a crafted VPN username. Attackers can embed a double-quote...

CVE-2026-93337

A flaw was found in NetworkManager-l2tp. This improper input validation vulnerability allows local users with permissions to create VPN connections to inject arbitrary directives into the pppd Point-to-Point Protocol Daemon options file. By supplying specially crafted mru or mtu property values, ...

CVE-2026-75131: Improper Neutralization of Argument Delimiters in a Command

NetworkManager-l2tp through 1.52.4, fixed in 1.52.6, contains a privilege escalation vulnerability that allows local users with permission to create VPN connections to execute arbitrary code as root by injecting pppd options through a crafted VPN username. Attackers can embed a double-quote...

Debian: CVE-2026-75131: network-manager-l2tp -- security update

NetworkManager-l2tp through 1.52.4, fixed in 1.52.6, contains a privilege escalation vulnerability that allows local users with permission to create VPN connections to execute arbitrary code as root by injecting pppd options through a crafted VPN username. Attackers can embed a double-quote...

SUSE CVE-2026-93337

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 val...

CVE-2026-75883

The code in pppd that formats a response to a PEAP Request packet in peapresponse copies an entire TLS record of up to 16384 bytes into the fixed global buffer outpacketbuf without checking the available space and without implementing outgoing PEAP fragmentation. Thus a pppd process connecting to...

DEBIAN-CVE-2026-75883

The code in pppd that formats a response to a PEAP Request packet in peapresponse copies an entire TLS record of up to 16384 bytes into the fixed global buffer outpacketbuf without checking the available space and without implementing outgoing PEAP fragmentation. Thus a pppd process connecting to...

UBUNTU-CVE-2026-75883

The code in pppd that formats a response to a PEAP Request packet in peapresponse copies an entire TLS record of up to 16384 bytes into the fixed global buffer outpacketbuf without checking the available space and without implementing outgoing PEAP fragmentation. Thus a pppd process connecting to...

CVE-2026-75883

The code in pppd that formats a response to a PEAP Request packet in peapresponse copies an entire TLS record of up to 16384 bytes into the fixed global buffer outpacketbuf without checking the available space and without implementing outgoing PEAP fragmentation. Thus a pppd process connecting to...

CVE-2026-75883 PPPD buffer overflow in PEAP response code

The code in pppd that formats a response to a PEAP Request packet in peapresponse copies an entire TLS record of up to 16384 bytes into the fixed global buffer outpacketbuf without checking the available space and without implementing outgoing PEAP fragmentation. Thus a pppd process connecting to...

EUVD-2026-82994

The code in pppd that formats a response to a PEAP Request packet in peapresponse copies an entire TLS record of up to 16384 bytes into the fixed global buffer outpacketbuf without checking the available space and without implementing outgoing PEAP fragmentation. Thus a pppd process connecting to...

CVE-2026-75883 PPPD buffer overflow in PEAP response code

The code in pppd that formats a response to a PEAP Request packet in peapresponse copies an entire TLS record of up to 16384 bytes into the fixed global buffer outpacketbuf without checking the available space and without implementing outgoing PEAP fragmentation. Thus a pppd process connecting to...

CVE-2026-75883

The code in pppd that formats a response to a PEAP Request packet in peapresponse copies an entire TLS record of up to 16384 bytes into the fixed global buffer outpacketbuf without checking the available space and without implementing outgoing PEAP fragmentation. Thus a pppd process connecting to...

CVE-2026-75883

The code in pppd that formats a response to a PEAP Request packet in peapresponse copies an entire TLS record of up to 16384 bytes into the fixed global buffer outpacketbuf without checking the available space and without implementing outgoing PEAP fragmentation. Thus a pppd process connecting to...

CVE-2026-75883

CVE-2026-75883 is a buffer overflow in pppd 's peap_response() function, where up to 16384 bytes of a TLS record are copied into the fixed-size global buffer outpacket_buf without bounds checking or outgoing PEAP fragmentation. A pppd process connecting to a server that requests PEAP authenticati...

CVE-2026-75883 PPPD buffer overflow in PEAP response code

The code in pppd that formats a response to a PEAP Request packet in peapresponse copies an entire TLS record of up to 16384 bytes into the fixed global buffer outpacketbuf without checking the available space and without implementing outgoing PEAP fragmentation. Thus a pppd process connecting to...

PT-2026-99964

The code in pppd that formats a response to a PEAP Request packet in peap response copies an entire TLS record of up to 16384 bytes into the fixed global buffer outpacket buf without checking the available space and without implementing outgoing PEAP fragmentation. Thus a pppd process connecting ...

CVE-2026-75883: Heap-based Buffer Overflow

The code in pppd that formats a response to a PEAP Request packet in peapresponse copies an entire TLS record of up to 16384 bytes into the fixed global buffer outpacketbuf without checking the available space and without implementing outgoing PEAP fragmentation. Thus a pppd process connecting to...