Medium

Memory Corruption in TP-Link VN020 F3v(T) FTP USER Command Handler

IdentifiersCVE-2024-12344CWE-119· Improper Restriction of Operations…

CVE-2024-12344 is a critical remote memory corruption vulnerability affecting TP-Link VN020 F3v(T) devices running firmware TT_V6.2.1021. The issue is reported in an unspecified part of the FTP USER command handler. By manipulating input processed by that handler, a remote attacker can trigger memory corruption. The exact vulnerable function and code path are not provided in the available content, but the flaw is associated specifically with processing of the FTP USER command.

For your environment

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation can cause memory corruption in the target device's FTP service. Depending on the nature of the corruption and exploit reliability, this may result in service crash or denial of service, and could potentially enable further impact such as arbitrary code execution; however, the available information only explicitly confirms memory corruption and remote exploitability.

Mitigation

If you can’t patch tonight, do this now.

Disable the FTP service if it is not operationally required. Restrict access to the FTP interface using network segmentation, firewall ACLs, and management-plane exposure controls so that only trusted administrative hosts can reach the service. Avoid exposing the device's FTP service to untrusted networks or the public internet, and monitor for anomalous FTP authentication traffic or repeated malformed USER commands.

Remediation

Patch, then assume compromise.

Upgrade to a vendor-provided fixed firmware version if one is available from TP-Link. Because the available content identifies the affected version as TT_V6.2.1021, organizations should review TP-Link security advisories, firmware release notes, and support channels for a patched release addressing CVE-2024-12344. If no fix is available, replace or isolate affected devices.

PUBLIC EXPLOITS

Exploits

No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.

VALID 0 / 1 TOTALView more in app

All candidate exploits were filtered out by Mallory's validation.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType

TP-LinkVn020 F3v Firmwareoperating_system

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

2 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.

2 SOURCESView more in app

No news coverage yet. Advisories and community discussion only.

What this page doesn’t show

The version that knows your environment.

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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity2