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CVE-2024-21887

critical

Description

A command injection vulnerability in web components of Ivanti Connect Secure (9.x, 22.x) and Ivanti Policy Secure (9.x, 22.x) allows an authenticated administrator to send specially crafted requests and execute arbitrary commands on the appliance.

References

https://www.greynoise.io/blog/unmasking-cisas-hidden-kev-ransomware-updates

https://thehackernews.com/2025/12/new-forumtroll-phishing-attacks-target.html

https://www.securityweek.com/us-organizations-warned-of-chinese-malware-used-for-long-term-persistence/

https://thehackernews.com/2025/12/cisa-reports-prc-hackers-using.html

https://www.theregister.com/2025/09/24/google_china_spy_report/

https://thehackernews.com/2025/09/unc5221-uses-brickstorm-backdoor-to.html

https://www.theregister.com/2025/08/28/china_salt_typhoon_alert/

https://www.securityweek.com/chinas-salt-typhoon-hacked-critical-infrastructure-globally-for-years/

https://www.infosecurity-magazine.com/news/chinese-tech-firms-salt-typhoon/

https://thehackernews.com/2025/08/salt-typhoon-exploits-cisco-ivanti-palo.html

https://securityaffairs.com/181650/intelligence/nsa-ncsc-and-allies-detailed-ttps-associated-with-chinese-apt-actors-targeting-critical-infrastructure-orgs.html

https://www.bleepingcomputer.com/news/security/global-salt-typhoon-hacking-campaigns-linked-to-chinese-tech-firms/

https://securelist.com/vulnerabilities-and-exploits-in-q2-2025/117333/

https://blog.eclecticiq.com/china-nexus-nation-state-actors-exploit-sap-netweaver-cve-2025-31324-to-target-critical-infrastructures

https://cyberscoop.com/sonicwall-exploited-vulnerabilities-surge/

https://thehackernews.com/2025/04/google-reports-75-zero-days-exploited.html

https://therecord.media/cisa-ivanti-firewall-bug-exploitation

https://www.darkreading.com/vulnerabilities-threats/china-linked-threat-group-exploits-ivanti-bug

https://www.bleepingcomputer.com/news/security/ivanti-patches-connect-secure-zero-day-exploited-since-mid-march/

https://cyberscoop.com/china-espionage-group-ivanti-vulnerability-exploits/

https://cloud.google.com/blog/topics/threat-intelligence/china-nexus-exploiting-critical-ivanti-vulnerability

https://securelist.com/vulnerabilities-and-exploits-in-q4-2024/115761/

https://cyberscoop.com/edge-device-vulnerabilities-fuel-attack-sprees/

https://www.securityweek.com/exploitation-of-new-ivanti-vpn-zero-day-linked-to-chinese-cyberspies/

https://therecord.media/china-espionage-ivanti-vulnerabilities-mandiant

https://cloud.google.com/blog/topics/threat-intelligence/ivanti-connect-secure-vpn-zero-day

https://www.theregister.com/2024/11/27/salt_typhoons_us_telcos/

https://www.darkreading.com/application-security/salt-typhoon-malware-arsenal-ghostspider

https://thehackernews.com/2024/11/chinese-hackers-use-ghostspider-malware.html

https://www.trendmicro.com/en_us/research/24/k/earth-estries.html

https://www.bleepingcomputer.com/news/security/salt-typhoon-hackers-backdoor-telcos-with-new-ghostspider-malware/

https://www.bleepingcomputer.com/news/security/cisco-bug-lets-hackers-run-commands-as-root-on-uwrb-access-points/

https://isc.sans.edu/diary/rss/31384

https://www.bleepingcomputer.com/news/security/flax-typhoon-hackers-infect-260-000-routers-ip-cameras-with-botnet-malware/

https://blog.lumen.com/derailing-the-raptor-train/

https://www.cisa.gov/news-events/cybersecurity-advisories/aa24-241a

https://securelist.com/vulnerability-exploit-report-q2-2024/113455/

https://blog.talosintelligence.com/common-ransomware-actor-ttps-playbooks/

https://www.akamai.com/blog/security-research/2024-redtail-cryptominer-pan-os-cve-exploit

https://thehackernews.com/2024/05/mirai-botnet-exploits-ivanti-connect.html

https://securityaffairs.com/162811/hacking/mitre-security-breach-china.html

https://securelist.com/vulnerability-report-q1-2024/112554/

https://blogs.juniper.net/en-us/security/protecting-your-network-from-opportunistic-ivanti-pulse-secure-vulnerability-exploitation

https://services.google.com/fh/files/misc/m-trends-2024.pdf

https://www.mitre.org/news-insights/news-release/mitre-response-cyber-attack-one-its-rd-networks

https://unit42.paloaltonetworks.com/malware-initiated-scanning-attacks/

https://cloud.google.com/blog/topics/threat-intelligence/ivanti-post-exploitation-lateral-movement

https://www.bleepingcomputer.com/news/security/magnet-goblin-hackers-use-1-day-flaws-to-drop-custom-linux-malware/

https://research.checkpoint.com/2024/magnet-goblin-targets-publicly-facing-servers-using-1-day-vulnerabilities/

https://www.darkreading.com/vulnerabilities-threats/volt-typhoon-hits-multiple-electric-cos-expands-cyber-activity

https://hub.dragos.com/hubfs/116-Datasheets/Dragos_IntelBrief_VOLTZITE_FINAL.pdf

https://www.bleepingcomputer.com/news/security/newest-ivanti-ssrf-zero-day-now-under-mass-exploitation/

https://www.cisa.gov/news-events/cybersecurity-advisories/aa25-239a

https://www.bleepingcomputer.com/news/security/new-ivanti-rce-flaw-may-impact-16-000-exposed-vpn-gateways/

https://www.tenable.com/blog/frequently-asked-questions-about-iranian-cyber-operations

https://www.tenable.com/blog/verizon-2025-dbir-tenable-research-collaboration

https://www.tenable.com/blog/salt-typhoon-an-analysis-of-vulnerabilities-exploited-by-this-state-sponsored-actor

https://www.tenable.com/blog/cve-2025-0282-ivanti-connect-secure-zero-day-vulnerability-exploited-in-the-wild

https://www.tenable.com/blog/aa24-241a-joint-cybersecurity-advisory-on-iran-based-cyber-actors-targeting-us-organizations

https://www.tenable.com/blog/cve-2024-7593-ivanti-virtual-traffic-manager-authentication-bypass-vulnerability

Details

Source: Mitre, NVD

Published: 2024-01-12

Updated: 2025-10-31

Named Vulnerability: ConnectAroundKnown Exploited Vulnerability (KEV)

Risk Information

CVSS v2

Base Score: 9

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 9.1

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

Severity: Critical

CVSS v4

Base Score: 9.4

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

Severity: Critical

EPSS

EPSS: 0.94412

Vulnerability Watch

Tenable Research has classified this CVE under the following Vulnerability Watch classification, which includes active and historical (inactive) classifications. You can learn more about these classifications on our blog.

Vulnerability of Concern