CVE-2026-123966: Tenda AC19 saveParentControlInfo heap-based overflow
- Is it exploited?
Not on CISA's list. CISA has not added it to the Known Exploited Vulnerabilities catalog as of . If CISA adds it, this page shows it as known exploited.
- How likely is exploitation in the next 30 days?
- 1%
EPSS score, percentile 63.9 of all scored records. A probability estimated by FIRST, not a report of exploitation.
CISA's SSVC assessment in the CVE record lists exploitation as poc.
- How severe?
- 10.0 Critical
CVSS v4.0 base score, given by the CNA
- What should I do?
CISA has set no required action, because the vulnerability is not in KEV.
No patch or vendor advisory is listed in the CVE record. Check Tenda's advisories.
A public exploit is linked in the references.
- Which versions are affected?
Affected
- 16.03.10.07
Source: CISA KEV 2026.11.10, as of ; FIRST EPSS, as of ; CVE List, as of . About the data.
Description
Tenda AC19 saveParentControlInfo heap-based overflow
A vulnerability was determined in Tenda AC19 16.03.10.07. Affected by this issue is the function saveParentControlInfo of the file /goform/saveParentControlInfo. This manipulation of the argument deviceId causes heap-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been publicly disclosed and may be utilized.
Source: CVE List, as of . About the data.
What to do
Advisories and patches
No patch, vendor advisory or mitigation is listed in the CVE record. Check Tenda's own security advisories for a fix, and compare your version with the affected versions below.
A public exploit is linked in the references.
This summary is based on the CVE record as of . Check the vendor's advisory before you act: affected versions and fixes can change.
Affected products and versions
Versions by product, as listed in the CVE record (1 product)
| Status | Versions |
|---|---|
| Affected | 16.03.10.07 |
Source: CVE List, as of . About the data.
Weakness
CWE-122, CWE-119
CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record.
Timeline
| Date | Event |
|---|---|
| CVE record published | |
| CVE record last updated |
References
6
Known exploited Tenda vulnerabilities
- CVE-2018-14558: Tenda AC7, AC9, and AC10 Routers Command Injection Vulnerability
- CVE-2020-10987: Tenda AC1900 Router AC15 Model Remote Code Execution Vulnerability
- CVE-2021-31755: Tenda AC11 Router Stack Buffer Overflow Vulnerability