Vulnerability report

Active exploitation observed Confirmed confidence In CISA KEV

CVE-2024-12987

Vigor2960 Command Injection

DrayTek / Vigor2960 · 1.5.1.4

Watch CVE-2024-12987 Browse KEV feed
Severity
CVSS 6.9 · Medium
Confidence
Confirmed
Exploit status
Observed in sensors
EPSS
98.2%
First observed
03 Jul 2026
Last observed
18 Oct 2026

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2024-12987 is an unauthenticated vulnerability affecting DrayTek Vigor2960, Vigor300B. A vulnerability, which was classified as critical, was found in DrayTek Vigor2960 and Vigor300B 1.5.1.4. Affected is an...

Is it exploited?

Yes. Previdian sensors observed exploitation attempts with confirmed confidence. Listed in CISA KEV. Also confirmed by third-party sources.

Who is affected?

DrayTek / Vigor2960 1.5.1.4.

What should we do?

Patch immediately, validate internet-facing exposure, and monitor for matching requests.

Overview

A vulnerability, which was classified as critical, was found in DrayTek Vigor2960 and Vigor300B 1.5.1.4

A vulnerability, which was classified as critical, was found in DrayTek Vigor2960 and Vigor300B 1.5.1.4. Affected is an unknown function of the file /cgi-bin/mainfunction.cgi/apmcfgupload of the component Web Management Interface. The manipulation of the argument session leads to os command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 1.5.1.5 is able to address this issue. It is recommended to upgrade the affected component. Es wurde eine Schwachstelle in DrayTek Vigor2960 and Vigor300B 1.5.1.4 gefunden.

Sie wurde als kritisch eingestuft. Es betrifft eine unbekannte Funktion der Datei /cgi-bin/mainfunction.cgi/apmcfgupload der Komponente Web Management Interface. Durch die Manipulation des Arguments session mit unbekannten Daten kann eine os command injection-Schwachstelle ausgenutzt werden. Der Angriff kann über das Netzwerk erfolgen. Der Exploit steht zur öffentlichen Verfügung. Ein Aktualisieren auf die Version 1.5.1.5 vermag dieses Problem zu lösen. Als bestmögliche Massnahme wird das Einspielen eines Upgrades empfohlen.

DrayTek Affected
Vigor2960
1.5.1.4
DrayTek Affected
Vigor300B
1.5.1.4
View vendor advisory (opens in new tab)
Published
27 Dec 2024
Exploitation Reported
16 May 2025
Attack vector
Remote
Complexity
Low
Privileges
None
User interaction
None

Tags

cisa edge nuclei_scanner

CVE References

Exploitation evidence

Why Previdian marks this CVE as exploited

Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.

Exploited in the wild

CISA

Recorded 16 May 2025

A trusted third party reported exploitation.

Active exploitation observed

Previdian sensor

First observed 03 Jul 2026

Previdian first observed exploitation attempts targeting this vulnerability in our honeypot sensors.

Proof of concept available

Nuclei Templates

Recorded 12 Jun 2026

Public scanner or PoC coverage increases practical exploitability.

Known exploited vulnerability sources

Per-source evidence links for KEV attestations are available through the Previdian Pro API.

Learn about Pro API access
Source Added
CISA First 2025-05-16 08:36 UTC
Previdian Sensors 2026-07-30 16:02 UTC
The Shadowserver 2026-09-29 00:00 UTC

Operational indicators for this CVE are listed under Detection.

Sensor telemetry

First-party evidence of exploitation activity

Previdian sensors recorded exploitation attempts targeting this vulnerability. The cards and chart show volume, unique attackers, and daily activity.

38

Attempts observed

10

Unique attacker IPs

8

Attacker countries

BG · CH · FR · JP · NL · TM · US · YE

12

Sensors observed

CVE-2024-12987 exploitation attempts over the last 87 days

Daily events observed by Previdian sensors

Updated 23 Oct 2026

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29 Jul 16 Aug 3 Sep 21 Sep 23 Oct

First observed 03 Jul 2026 · Last observed 18 Oct 2026

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Detection

Operational artifacts and observed signals

Make the evidence actionable in scanner, SOC, and edge-control workflows.

Observed signals

Request targets
User-Agents
Callback hosts
18
0
0

Request targets and User-Agents available in Pro. Callback host details available in Enterprise.

Virtual patch status

No Previdian virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.

Learn about virtual patches →

Attacker IP Indicators

Attacker IP indicators observed · available in Pro and Enterprise.

Sensor-derived attacker IP indicators are available to Pro and Enterprise accounts under Detection and through the Pro API.

Learn about Pro API access

Scanner Artifacts

Scanner and exploit-framework references linked to this CVE.

Scanner Reference Detected
Nuclei https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2024/CVE-2024-12987.yaml 02 Jun 2025

Risk and context

Severity, weaknesses, and research context

CVSS v4.0

6.9 Medium

Potential damage if exploited. Separate from whether attackers are using it.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

EPSS

98.2%

Estimated chance of exploitation in the next 30 days. Previdian's warning comes from evidence, not this score.

Weaknesses

Improper Neutralization of Special Elements used in a Command ('Command Injection') CWE-77 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') CWE-78

Recent mention · All CISA Advisories

CISA Adds Three Known Exploited Vulnerabilities to Catalog

CISA has added three new vulnerabilities to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation.  CVE-2024-12987 DrayTek Vigor Routers OS Command Injection Vulnerability CVE-2025-4664 Google Chromium Loader Insufficient Policy Enforcement...

Read full advisory

All CVSS Scores

CVSS v4.0 6.9 Medium

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

CVSS v3.1 7.3 High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

CVSS v3.0 7.3 High

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

CVSS v2.0 7.5 High

AV:N/AC:L/Au:N/C:P/I:P/A:P

Potential Proof of Concepts

These PoCs are unverified and could contain malware. Use at your own risk.

DrayTek Vigor - Command Injection

nuclei · Created Unknown

Timeline

From disclosure to observed exploitation

  1. 00:00 UTC

    KEV confirmed by The Shadowserver

    Exploitation attested by an external source

  2. 04:22 UTC

    Indicators of compromise added (18)

    Indicators of compromise recorded

  3. 04:22 UTC

    Observed by Previdian sensors

    Evidence-backed exploitation signal

  4. 14:20 UTC

    Public PoC available

    Public proof-of-concept code published

  5. 14:11 UTC

    Nuclei template available

    Scanner coverage available

  6. 08:36 UTC

    Added to CISA KEV

    Listed in the CISA Known Exploited Vulnerabilities catalog

  7. 16:00 UTC

    CVE published

    Vulnerability disclosed publicly

  8. 08:03 UTC

    CVE ID reserved

    Identifier reserved by the CNA

Pro API

Automate this intelligence

Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.

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  • Evidence confidence and provenance
  • First-party sensor telemetry
  • PoC and scanner references
  • Affected versions and enrichment
  • Automation-ready JSON delivery

GET /api/v2/pro/kevs/CVE-2024-12987

Sample API response 
{
  "cve_id": "CVE-2024-12987",
  "confidence": "Confirmed",
  "cvss_score": 6.9,
  "cvss_estimated": false,
  "epss_score": 0.98163,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": true
  },
  "sensor_telemetry": { "attempts": 38, "sensors": 12 }
}