CVE-2024-50854: Tenda G3 v3.0 v15.11.0.20 was discovered to contain a stack overflow via the formSetPortMapping function.

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HIGH 8.8MITIGATE

CVE-2024-50854 is a high-severity flaw (CVSS 8.8) affecting g3 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Tenda G3 v3.0 v15.11.0.20 was discovered to contain a stack overflow via the formSetPortMapping function.

Why this priority

High severity
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.6% (top 54%)
CISA exploited list	No
Weakness	CWE-787
Published	2024-11-13
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: tendacn

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-11-13 15:15 UTCPublished CVE record published
2026-06-17 08:05 UTCUpdated Record last modified

tendacn g3 firmware MITIGATE

Affected: 15.11.0.20

Fixed in: no fixed release known

Safe to downgrade to: a release before 15.11.0.20

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-50854?

g3 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2024-50854 being exploited?

CVE-2024-50854 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-50854 affect?

CVE-2024-50854 affects g3 firmware. Severity is high (CVSS 8.8). Tenda G3 v3.0 v15.11.0.20 was discovered to contain a stack overflow via the formSetPortMapping function.

How urgent is CVE-2024-50854?

Priority 47/100. High severity; Public exploit reference

Related CVEs

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CVE-2025-57071 HIGH 7.5 MITIGATE Tenda G3 v3.0br_V15.11.0.17 was discovered to contain a stack overflow in the vpnUsers parameter in the formAd
CVE-2025-57070 HIGH 7.5 MITIGATE Tenda G3 v3.0br_V15.11.0.17 was discovered to contain a stack overflow in the gstUp parameter in the guestWifi
CVE-2025-57069 HIGH 7.5 MITIGATE Tenda G3 v3.0br_V15.11.0.17 was discovered to contain a stack overflow in the pPppUser parameter in the getsin

References

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