Command Injection in IPsec VPN
Welotec TK-series devices with the IPsec VPN function in use are affected on firmware before 3.5.116 (TK100), 1.0.124 (TK500-v2) or 1.0.123 (TK500-v3). Fixed in those releases.
Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.
- Exploited
- No known exploitation
- Fix
- Fixed in 3.5.116, 1.0.124, 1.0.123
- Who is exposed
- Specific setups only
Do first: Check whether your setup matches what the bug needs. The IPsec VPN function of the device is in use. Device runs an affected Welotec TK-series firmware version below the fixed release for its model (for example TK102L/TK102W/TK100 below 3.5.116).
- Exploitation0/40No signal
- Exposure8/25Specific setups only, reachable over the network
- Reach?/20Reach: unknown (data gap). No tracked technology or package matched
- Severity9.6/10CVSS 8.6, total technical impact per CISA
- No patch0/5No signal
What would change the score
- Would score about 68 if added to CISA KEV
- Would score about 63 if CISA's SSVC rates exploitation active
- Would score about 25 if CISA's SSVC rates it automatable
CVE-2026-105982 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 8.6 (high) and affects TK100, TK500-v2 and TK500-v3; fixed in 3.5.116, 1.0.124 and 1.0.123.
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- Published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- FIRST's estimate of the chance attackers exploit it in the next 30 days, updated daily.What do these mean? →
- 0.47% · 40th percentile
- A 0-100 score for how much a CVE matters across the industry: exploitation, exposure, how widely the software is used, severity and whether a fix exists.What do these mean? →
- 18/100 · provisional
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Specific setups only
- Fix
- Fixed in 3.5.116, 1.0.124, 1.0.123
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: total
Summary
This vulnerability affects the IPsec VPN function of the affected product, which is a network security feature that encrypts traffic between sites or devices. A remote attacker who already has high-level privileges could exploit improper input validation to run arbitrary system commands with root-level access.
Read the original description
Improper input validation in the IPsec VPN function may allow a remote attacker with high privileges to inject system commands and execute them with root privileges.
What to do
Check whether your setup matches what the bug needs.
The IPsec VPN function of the device is in use. Device runs an affected Welotec TK-series firmware version below the fixed release for its model (for example TK102L/TK102W/TK100 below 3.5.116).Upgrade to a fixed version: 3.5.116, 1.0.124, 1.0.123.
Timeline
- CVE published
- First seen by cve.now
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- Welotec TK100
From 0.0.0 · fixed in 3.5.116
- Welotec TK500-v2
From 0.0.0 · fixed in 1.0.124
- Welotec TK500-v3
From 0.0.0 · fixed in 1.0.123
Evidence 1
- Link
Corrections
None so far.
Something wrong on this page? Report an error. Every fix is listed here.
Questions about CVE-2026-105982
Is CVE-2026-105982 being exploited?
It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data
What does this mean?
Improper input validation in the IPsec VPN function allows command injection, meaning injected system commands can run with root privileges. The impact is high for confidentiality, integrity and availability.Source: certvde.com
Which versions are affected by CVE-2026-105982?
TK100: from 0.0.0 before 3.5.116. TK500-v2: from 0.0.0 before 1.0.124. TK500-v3: from 0.0.0 before 1.0.123.Source: cve.now feed data
Am I affected, and how do I check?
Firmware below 3.5.116 on TK100, below 1.0.124 on TK500-v2, and below 1.0.123 on TK500-v3 is affected, but only where the IPsec VPN function is in use. To check, compare the firmware version shown on the device with these numbers and confirm whether IPsec VPN is configured.Source: certvde.com
How do I fix CVE-2026-105982?
Update TK100 to firmware 3.5.116, TK500-v2 to 1.0.124, or TK500-v3 to 1.0.123, or any later release. No workaround is listed in the facts.Source: certvde.com