What is CVE-2026-35867?
A Command Injection vulnerability exists in the bs_SetLimitCli_info function within the libshare.so library of the LB-LINK router AC1900_AZ2 V1.0.2 via shell metacharacters, if the device is deployed in a scenario where an actor is able to make a "POST /goform/set_LimitClient_cfg" call but does not already have administrative access to the device.
The record classifies CVE-2026-35867 under weakness class CWE-78. Its CVSS v3 base vector states that the flaw is reachable from an adjacent network, needs high-privilege credentials, needs no user interaction. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 22 days ago.
Severity and exploitation probability
- CVSS v3.1 base score
- 3.1 — LOW
CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:L - EPSS (FIRST)
- 0.5% probability of exploitation in the next 30 days, higher than 42.6% of all scored CVEs
- CISA KEV
- Not listed in the CISA Known Exploited Vulnerabilities catalog
- Threadlinqs priority
- 3.3/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- Published
- 2026-09-13, last modified 2026-09-14
Is CVE-2026-35867 being exploited?
It currently carries a trending score of 40 in the Threadlinqs vulnerability feed.
Affected products and versions
- LB-LINK: AC1900 firmware
How to fix CVE-2026-35867
No vendor patch reference has been recorded for CVE-2026-35867 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.
Threat activity tracking CVE-2026-35867
No threat campaign in the Threadlinqs corpus currently references CVE-2026-35867, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.
Sources
Enriched from CVE.org, NVD, FIRST EPSS. Last verified by Threadlinqs on . This product uses the NVD API but is not endorsed or certified by the NVD.