CVE-2026-111221

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.93% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 60.4% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Analyzed. NVD last modified this record on 2026-10-26.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-10-15 18:46Z13 DAYS AGO

Last updated

2026-10-26 15:08Z3 DAYS AGO

Reserved

2026-10-15

Assigning CNA

VulnCheck

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Weaknesses

• CWE-93Improper Neutralization of CRLF Sequences ('CRLF Injection')Base

Data version

5.2

Document digest

4fdbc44f3bd92b5e9a02cade5df49f9683da4a5e60c98e24a1f3edf55fb74ae2

• github.comhttps://github.com/abraxas/pfsense-l2tp-radius-mpdexploittechnical-description
• abraxaslabs.techhttps://abraxaslabs.tech/research/pfsense-ce-leftoverstechnical-description
• github.comhttps://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/vpn.inc#L428-L441technical-description
• github.comhttps://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/vpn.inc#L202-L215technical-description
• github.comhttps://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/usr/local/www/vpn_l2tp.php#L137-L143technical-description
• www.vulncheck.comVulnCheck Advisory: Netgate pfSense CE through 2.9.0 Command Injection via RADIUS Secret mpd.conf Injectionhttps://www.vulncheck.com/advisories/netgate-pfsense-ce-through-2.9.0-command-injection-via-radius-secret-mpd-conf-injectionthird-party-advisory