# CWE-707: Improper Neutralization

> As of 2026-10-10, CWE-707 (Improper Neutralization) underlies 5 CVEs tracked by Threadlinqs, none of them in the CISA Known Exploited Vulnerabilities catalog, and is cited by 7 tracked threats.

**Last updated:** 2026-10-10

## What is CWE-707?

The product does not ensure or incorrectly ensures that structured messages or data are well-formed and that certain security properties are met before being read from an upstream component or sent to a downstream component.

If a message is malformed, it may cause the message to be incorrectly interpreted. Neutralization is an abstract term for any technique that ensures that input (and output) conforms with expectations and is "safe." This can be done by: checking that the input/output is already "safe" (e.g. validation) transformation of the input/output to be "safe" using techniques such as filtering, encoding/decoding, escaping/unescaping, quoting/unquoting, or canonicalization preventing the input/output from being directly provided by an attacker (e.g. "indirect selection" that maps externally-provided values to internally-controlled values) preventing the input/output from being processed at all This weakness typically applies in cases where the product prepares a control message that another process must act on, such as a command or query, and malicious input that was intended as data, can enter the control plane instead. However, this weakness also applies to more general cases where there are not always control implications.

CWE-707 is a pillar-level weakness in MITRE’s Common Weakness Enumeration. Applicable platforms: Not Language-Specific; Not OS-Specific; Not Architecture-Specific; Not Technology-Specific.

_Source: [MITRE CWE](https://cwe.mitre.org/data/definitions/707.html) (CWE-707 definition, reproduced verbatim). Counts and linkage below are Threadlinqs data._

## Consequences

- **Other** — Other

_Source: MITRE CWE, common consequences._

## How CWE-707 is exploited in the wild

Threadlinqs maps 5 CVEs to CWE-707, published between 2024-11-06 and 2026-10-07. None of them is in the CISA KEV catalog yet. By CVSS v3 severity the set splits into 1 critical, 3 high. The highest EPSS score in the set is 96.2% (CVE-2024-10914), the modelled probability of exploitation in the next 30 days. 7 tracked threats reference CWE-707 directly or through a CVE it covers; the most recent is “Evooo1Bot: Multi-Functional Mirai-Based Linux Botnet Exploiting 18 Known CVEs in Internet-Facing Devices” (2026-10-09). Affected products concentrate in Cisco (2), D-Link (2), Splunk (1).

## Vulnerabilities (CVEs)

All 5 CVEs mapped to CWE-707, CISA KEV first, then by CVSS score.

- [CVE-2026-76499](https://intel.threadlinqs.com/cve/CVE-2026-76499) — CVSS 9.8 critical · EPSS 0.3% · published 2026-10-07
- [CVE-2026-76453](https://intel.threadlinqs.com/cve/CVE-2026-76453) — CVSS 8.8 high · EPSS 0.3% · published 2026-10-07
- [CVE-2024-10914](https://intel.threadlinqs.com/cve/CVE-2024-10914) — CVSS 8.1 high · EPSS 96.2% · published 2024-11-06
- [CVE-2024-10915](https://intel.threadlinqs.com/cve/CVE-2024-10915) — CVSS 8.1 high · EPSS 79.6% · published 2024-11-06
- [CVE-2026-76284](https://intel.threadlinqs.com/cve/CVE-2026-76284) — EPSS 0.1% · published 2026-10-07

## Affected vendors

- [Cisco](https://intel.threadlinqs.com/vendors/cisco) — 2 CVEs
- [D-Link](https://intel.threadlinqs.com/vendors/d-link) — 2 CVEs
- [Splunk](https://intel.threadlinqs.com/vendors/splunk) — 1 CVE

## Threat activity

7 tracked threats cite CWE-707:

- [Evooo1Bot: Multi-Functional Mirai-Based Linux Botnet Exploiting 18 Known CVEs in Internet-Facing Devices](https://intel.threadlinqs.com/threat/TL-2026-3062) — HIGH · 2026-10-09
- [Cisco October 2026 Security Advisories: Critical Flaws in Meraki, License (SSM) On-Prem, NX-OS, APIC and Finesse (CVE-2026-76464, CVE-2026-20328, CVE-2026-76485 and others)](https://intel.threadlinqs.com/threat/TL-2026-3108) — CRITICAL · 2026-10-09
- [Splunk Enterprise and Secure Gateway: 22 vulnerabilities patched (SVD-2026-1001/1002), including critical CVE-2026-76268 (Patroni REST API missing authentication, CVSS 9.8) and CVE-2026-76281 (listed 9.8 in advisory)](https://intel.threadlinqs.com/threat/TL-2026-3110) — CRITICAL · 2026-10-09
- [SonicWall SMA1000 Pre-Auth SSRF (CVE-2026-102255, CVSS 10.0) and Critical Splunk Enterprise Vulnerabilities (CVE-2026-76268, CVE-2026-76281, CVE-2026-76284) Patched](https://intel.threadlinqs.com/threat/TL-2026-3176) — CRITICAL · 2026-10-08
- [ClingSTUN Linux Backdoor Turns Unpatched IoT Devices Into Proxy Nodes via Public STUN Infrastructure](https://intel.threadlinqs.com/threat/TL-2026-2934) — HIGH · 2026-10-05
- [Cling IoT botnet masquerades as Google STUN traffic for C2, exploiting Realtek Jungle SDK CVE-2021-35394](https://intel.threadlinqs.com/threat/TL-2026-2857) — CRITICAL · 2026-10-03
- [Drupal Core Highly Critical SQL Injection in Database Abstraction API (PostgreSQL) — SA-CORE-2026-004 / CVE-2026-9082](https://intel.threadlinqs.com/threat/TL-2026-0542) — CRITICAL · 2026-05-21

## Detection methods (MITRE CWE)

- **Automated Static Analysis**: Automated static analysis, commonly referred to as Static Application Security Testing (SAST), can find some instances of this weakness by analyzing source code (or binary/compiled code) without having to execute it. Typically, this is done by building a model of data flow and control flow, then searching for potentially-vulnerable patterns that connect "sources" (origins of input) with "sinks" (destinations where the data interacts with external components, a lower layer such as the OS, etc.)

_Source: MITRE CWE, detection methods. Threadlinqs detection rules for the threats above are Blue tier and higher._

Canonical: https://intel.threadlinqs.com/cwe/CWE-707
Source definition: https://cwe.mitre.org/data/definitions/707.html
Detection rules and IOCs for threats exploiting CWE-707 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp
