CVE-2026-11494

MEDIUM 5.3 PoC AVAILABLE

Published 2026-06-08 · Last modified 2026-06-09

A security vulnerability has been detected in TOTOLINK AC1200 T8 4.1.5cu.8611. This affects an unknown function of the file /etc/vsftpd.conf of the component vsftpd. The manipulation leads to least privilege violation. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used.

EXPLOIT AVAILABLE

Public exploit or PoC code exists. Modeled probability is still low, but the barrier to attack is reduced — watch closely.

Exploitation likelihood

0.2%chance of exploitation in 30 days · 12th percentile

○ In CISA KEV ● Public exploit / PoC

Impact if exploited

5.3CVSS 4.0 · MEDIUM

ConfidentialityNone
IntegrityLow
AvailabilityNone

What an attacker needs

✓Access: Reachable over the network — no local access needed
⚠Privileges: Requires a low-privilege account
✓User interaction: No user interaction needed
✓Complexity: No special conditions — reliably repeatable
✓Requirements: No special attack requirements

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept & exploit code

PoC https://www.notion.so/TOTOLink-AC1200T8-V4-1-5cu-8611-3671f5ba989080a6aa03e6adbdd1d104?source=copy_link

Listed for defensive triage and patch prioritization.

Affected

Vendors Totolink

Products Ac1200 T8

Weakness (CWE)

CWE-272
CWE-266

CVSS vector

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

References

Sources: NVD · CVE.org · EPSS