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CVE detail

CVE-2024-40891

**UNSUPPORTED WHEN ASSIGNED** A post-authentication command injection vulnerability in the management commands of the legacy DSL CPE Zyxel VMG4325-B10A firmware version 1.00(AAFR.4)C0_20170615 could allow an authenticated attacker to execute operating system (OS) commands on an affected device via Telnet.

CVSS 8.8 · HighBuzz score 62.0KEV listed

Buzz score

Why this CVE is surfacing

Buzz score total 62.0

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 24.0 · diversity 13.0 · KEV 25.0 · OTX 0.0 · PoC 0.0
Mention score
24.0
10 evidence mentions in the snapshot
Diversity score
13.0
4 sources across 2 categories
KEV score
25.0
Known exploited vulnerability present
OTX score
0.0
0 OTX pulses
PoC score
0.0
0 repos · best confidence N/A
Best PoC traction
0
Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions
0
within the 30d window
Peak daily
0
highest bucket

Evidence

Source links by recency

Newest mentions first
10 source links · newest first
  • U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Windows, Zyxel device flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added the following vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog: The vulnerability CVE-2024-40891 is a command injection issue in Zyxel CPE Series devices that remains unpatched and has not yet […]

    newssecurityaffairs.comFeb 12, 2025, 8:01 AM
  • Here’s an overview of some of last week’s most interesting news, articles, interviews and videos: Russian cybercrooks exploiting 7-Zip zero-day vulnerability (CVE-2025-0411) CVE-2025-0411, a Mark-of-the-Web bypass vulnerability in the open-source archiver tool 7-Zip that was fixed in November 2024, has been exploited in zero-day attacks to deliver malware to Ukrainian entities, Trend Micro researchers have revealed. Crypto-stealing iOS, Android malware found on App Store, Google Play A number of iOS and Android apps on Apple’s … More →

    newswww.helpnetsecurity.comFeb 9, 2025, 9:00 AM
  • Swap EOL Zyxel routers, upgrade Netgear ones!Help Net Security

    There will be no patches for EOL Zyxel routers under attack via CVE-2024-40891, the company has confirmed. Meanwhile, Netgear has issued patches for critical flaws affecting its routers and wireless access points. Zyxel vulnerability: Exploited, no patches CVE-2024-40891, a command injection vulnerability in Zyxel CPE Series telecommunications devices that has been known since July 2024 and is currently being exploited by attackers, will not be patched by the manufacturer since the affected devices “are legacy … More →

    newswww.helpnetsecurity.comFeb 5, 2025, 2:11 PM
  • Multiple Zyxel legacy DSL CPE products are affected by exploited zero-day vulnerabilities that will not be patched.

    newswww.securityweek.comFeb 5, 2025, 9:57 AM
  • A new round of the weekly SecurityAffairs newsletter arrived! Every week the best security articles from Security Affairs are free in your email box. Enjoy a new round of the weekly SecurityAffairs newsletter, including the international press. A ransomware attack forced New York Blood Center to reschedule appointments Contec CMS8000 patient monitors contain a hidden […]

    newssecurityaffairs.comFeb 2, 2025, 2:46 PM
  • Here’s an overview of some of last week’s most interesting news, articles, interviews and videos: Apple zero-day vulnerability exploited to target iPhone users (CVE-2025-24085) Apple has shipped a fix for a zero-day vulnerability (CVE-2025-24085) that is being leveraged by attackers against iPhone users. 5,000+ SonicWall firewalls still open to attack (CVE-2024-53704) 5,000+ SonicWall firewalls are still vulnerable to attack via a high-severity vulnerability (CVE-2024-53704) that, according to SonicWall, should be considered “at imminent risk of … More →

    newswww.helpnetsecurity.comFeb 2, 2025, 9:00 AM
  • CVE-2024-40891, a command injection vulnerability in Zyxel CPE Series telecommunications devices that has yet to be fixed by the manufacturer, is being targeted by attackers, cybersecurity company Greynoise has warned. Successful exploitation would allow attackers to execute arbitrary commands on affected devices, potentially leading to complete system compromise, network infiltration, and data exfiltration. “After identifying a significant overlap between IPs exploiting CVE-2024-40891 and those classified as Mirai, the team investigated a recent variant of Mirai … More →

    newswww.helpnetsecurity.comJan 29, 2025, 4:23 PM
  • GreyNoise reports active exploitation of a newly discovered zero-day vulnerability in Zyxel CPE devices. There are no patches available.

    newswww.securityweek.comJan 29, 2025, 4:13 PM
  • Experts warn that threat actors are actively exploiting critical zero-day vulnerability, tracked as CVE-2024-40891, in Zyxel CPE Series devices. GreyNoise researchers are observing active exploitation attempts targeting a zero-day, tracked as CVE-2024-40891, in Zyxel CPE Series devices. The vulnerability is a command injection issue that remains unpatched and has not yet been publicly disclosed. Attackers can exploit […]

    newssecurityaffairs.comJan 29, 2025, 10:17 AM
  • CVE-2024-40891: Zyxel CPE Zero-day Exploitation. Hackers are actively exploiting a telnet-based command injection vulnerability in Zyxel CPE devices, impacting 1,500+ exposed systems. No patch is available yet.

    vendorwww.greynoise.ioJan 28, 2025, 12:00 AM

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

0 repository references · best confidence N/A · max 0 stars
No public PoC repositories have been matched yet.

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