Zero-Day Weaponization: Ransomware Groups Exploit Unpatched Vulnerabilities in Africa

Zero-Day Weaponization: Ransomware Groups Exploit Unpatched Vulnerabilities in Africa

Introduction

In early 2026, the African continent has witnessed a significant uptick in cyberattacks, particularly from ransomware groups exploiting zero-day vulnerabilities. These attacks have targeted critical sectors, including healthcare, education, and government infrastructure, underscoring the evolving threat landscape.

Emerging Threat Actors

Several ransomware groups have been identified as active in Africa:

• Yurei: An emerging group that has steadily expanded its operations through 2025, with a growing focus on industrial, food supply, and retail sectors. To date, it has claimed multiple victims, including The Promise Nigeria Ltd (Nigeria), indicating a geographically diverse targeting pattern across Asia and Africa. (cyfirma.com)

• BQT.Lock: A ransomware group that came publicly known in mid-2025, operating from the Middle East and led by Karim Fayad. The group blends financial extortion with ideological motives linked to Hezbollah and Iranian state-linked cyber activities. (en.wikipedia.org)

Exploitation of Zero-Day Vulnerabilities

Ransomware groups are increasingly targeting unpatched zero-day vulnerabilities to gain unauthorized access to systems:

• SAP NetWeaver Vulnerability (CVE-2025-31324): A critical zero-day in SAP NetWeaver was exploited in the wild, compromising over 400 servers worldwide. The flaw allows unauthenticated attackers to upload malicious binaries on a host system, leading to code execution and lateral movement. (zafran.io)

• Telegram Exploits: Operation Zero, a Russian exploit broker, offered up to $4 million for vulnerabilities in the Telegram messaging app, highlighting the lucrative market for zero-day exploits. (techcrunch.com)

Impact on Africa

The exploitation of zero-day vulnerabilities has had significant repercussions in Africa:

• Ethiopia: Ethiopia has faced a high number of cyberattacks, with ransomware groups like RansomHub being responsible for 16% of the published attacks. (itnewsafrica.com)

• South Africa: In March 2025, two university students uncovered critical flaws in South Africa’s social welfare system, which were later exploited by hacker group N4aughtySec to allegedly steal R175 million. (linkedin.com)

Conclusion

The weaponization of zero-day vulnerabilities by ransomware groups poses a high-level threat to Africa's cybersecurity landscape. The continent's critical sectors are increasingly targeted, emphasizing the need for robust cybersecurity measures and timely patching of vulnerabilities to mitigate potential risks.

Highlights:

• Ethiopia Faces the Most Cyberattacks in Africa | African Business Technology News, Published on Monday, December 09
• SAP servers under attack - Security and Data vendors targeted - 1/3 of initial accesses gain via exploitation, Published on Wednesday, April 30
• Russian zero-day seller is offering up to $4 million for Telegram exploits | TechCrunch, Published on Thursday, March 20